diff options
author | Simon Josefsson <simon@josefsson.org> | 2008-10-30 15:38:09 +0100 |
---|---|---|
committer | Simon Josefsson <simon@josefsson.org> | 2008-10-30 15:38:09 +0100 |
commit | 745b4f0f51dcd992f4ae105d29fff227a383f893 (patch) | |
tree | bd560ba84815935f1a9376001b1b3e6f96b3adfc /gl/m4 | |
parent | 27e0bf81d07528ada93ceb0c5c8839a7cd83fb7e (diff) | |
download | gnutls-745b4f0f51dcd992f4ae105d29fff227a383f893.tar.gz |
Update gnulib files.
Diffstat (limited to 'gl/m4')
-rw-r--r-- | gl/m4/alloca.m4 | 46 | ||||
-rw-r--r-- | gl/m4/errno_h.m4 | 113 | ||||
-rw-r--r-- | gl/m4/float_h.m4 | 19 | ||||
-rw-r--r-- | gl/m4/fseeko.m4 | 34 | ||||
-rw-r--r-- | gl/m4/intmax_t.m4 | 61 | ||||
-rw-r--r-- | gl/m4/inttypes_h.m4 | 26 | ||||
-rw-r--r-- | gl/m4/longlong.m4 | 106 | ||||
-rw-r--r-- | gl/m4/lseek.m4 | 50 | ||||
-rw-r--r-- | gl/m4/malloc.m4 | 41 | ||||
-rw-r--r-- | gl/m4/printf.m4 | 1309 | ||||
-rw-r--r-- | gl/m4/realloc.m4 | 23 | ||||
-rw-r--r-- | gl/m4/size_max.m4 | 68 | ||||
-rw-r--r-- | gl/m4/snprintf.m4 | 40 | ||||
-rw-r--r-- | gl/m4/sockpfaf.m4 | 58 | ||||
-rw-r--r-- | gl/m4/stdbool.m4 | 115 | ||||
-rw-r--r-- | gl/m4/stdint.m4 | 395 | ||||
-rw-r--r-- | gl/m4/stdint_h.m4 | 26 | ||||
-rw-r--r-- | gl/m4/stdio_h.m4 | 127 | ||||
-rw-r--r-- | gl/m4/stdlib_h.m4 | 62 | ||||
-rw-r--r-- | gl/m4/string_h.m4 | 92 | ||||
-rw-r--r-- | gl/m4/sys_socket_h.m4 | 117 | ||||
-rw-r--r-- | gl/m4/unistd_h.m4 | 81 | ||||
-rw-r--r-- | gl/m4/vasnprintf.m4 | 260 | ||||
-rw-r--r-- | gl/m4/wchar.m4 | 69 | ||||
-rw-r--r-- | gl/m4/wchar_t.m4 | 20 | ||||
-rw-r--r-- | gl/m4/wint_t.m4 | 28 | ||||
-rw-r--r-- | gl/m4/xsize.m4 | 13 |
27 files changed, 3399 insertions, 0 deletions
diff --git a/gl/m4/alloca.m4 b/gl/m4/alloca.m4 new file mode 100644 index 0000000000..95f54a6d48 --- /dev/null +++ b/gl/m4/alloca.m4 @@ -0,0 +1,46 @@ +# alloca.m4 serial 8 +dnl Copyright (C) 2002-2004, 2006, 2007 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_ALLOCA], +[ + dnl Work around a bug of AC_EGREP_CPP in autoconf-2.57. + AC_REQUIRE([AC_PROG_CPP]) + AC_REQUIRE([AC_PROG_EGREP]) + + AC_REQUIRE([AC_FUNC_ALLOCA]) + if test $ac_cv_func_alloca_works = no; then + gl_PREREQ_ALLOCA + fi + + # Define an additional variable used in the Makefile substitution. + if test $ac_cv_working_alloca_h = yes; then + AC_CACHE_CHECK([for alloca as a compiler built-in], [gl_cv_rpl_alloca], [ + AC_EGREP_CPP([Need own alloca], [ +#if defined __GNUC__ || defined _AIX || defined _MSC_VER + Need own alloca +#endif + ], [gl_cv_rpl_alloca=yes], [gl_cv_rpl_alloca=no]) + ]) + if test $gl_cv_rpl_alloca = yes; then + dnl OK, alloca can be implemented through a compiler built-in. + AC_DEFINE([HAVE_ALLOCA], 1, + [Define to 1 if you have 'alloca' after including <alloca.h>, + a header that may be supplied by this distribution.]) + ALLOCA_H=alloca.h + else + dnl alloca exists as a library function, i.e. it is slow and probably + dnl a memory leak. Don't define HAVE_ALLOCA in this case. + ALLOCA_H= + fi + else + ALLOCA_H=alloca.h + fi + AC_SUBST([ALLOCA_H]) +]) + +# Prerequisites of lib/alloca.c. +# STACK_DIRECTION is already handled by AC_FUNC_ALLOCA. +AC_DEFUN([gl_PREREQ_ALLOCA], [:]) diff --git a/gl/m4/errno_h.m4 b/gl/m4/errno_h.m4 new file mode 100644 index 0000000000..b5af07800c --- /dev/null +++ b/gl/m4/errno_h.m4 @@ -0,0 +1,113 @@ +# errno_h.m4 serial 1 +dnl Copyright (C) 2004, 2006, 2008 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_HEADER_ERRNO_H], +[ + dnl Use AC_REQUIRE here, so that the default behavior below is expanded + dnl once only, before all statements that occur in other macros. + AC_REQUIRE([gl_HEADER_ERRNO_H_BODY]) +]) + +AC_DEFUN([gl_HEADER_ERRNO_H_BODY], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_CACHE_CHECK([for complete errno.h], gl_cv_header_errno_h_complete, [ + AC_EGREP_CPP(booboo,[ +#include <errno.h> +#if !defined ENOMSG +booboo +#endif +#if !defined EIDRM +booboo +#endif +#if !defined ENOLINK +booboo +#endif +#if !defined EPROTO +booboo +#endif +#if !defined EMULTIHOP +booboo +#endif +#if !defined EBADMSG +booboo +#endif +#if !defined EOVERFLOW +booboo +#endif +#if !defined ENOTSUP +booboo +#endif +#if !defined ECANCELED +booboo +#endif + ], + [gl_cv_header_errno_h_complete=no], + [gl_cv_header_errno_h_complete=yes]) + ]) + if test $gl_cv_header_errno_h_complete = yes; then + ERRNO_H='' + else + gl_CHECK_NEXT_HEADERS([errno.h]) + ERRNO_H='errno.h' + fi + AC_SUBST([ERRNO_H]) + gl_REPLACE_ERRNO_VALUE([EMULTIHOP]) + gl_REPLACE_ERRNO_VALUE([ENOLINK]) + gl_REPLACE_ERRNO_VALUE([EOVERFLOW]) +]) + +# Assuming $1 = EOVERFLOW. +# The EOVERFLOW errno value ought to be defined in <errno.h>, according to +# POSIX. But some systems (like OpenBSD 4.0 or AIX 3) don't define it, and +# some systems (like OSF/1) define it when _XOPEN_SOURCE_EXTENDED is defined. +# Check for the value of EOVERFLOW. +# Set the variables EOVERFLOW_HIDDEN and EOVERFLOW_VALUE. +AC_DEFUN([gl_REPLACE_ERRNO_VALUE], +[ + if test -n "$ERRNO_H"; then + AC_CACHE_CHECK([for ]$1[ value], [gl_cv_header_errno_h_]$1, [ + AC_EGREP_CPP(yes,[ +#include <errno.h> +#ifdef ]$1[ +yes +#endif + ], + [gl_cv_header_errno_h_]$1[=yes], + [gl_cv_header_errno_h_]$1[=no]) + if test $gl_cv_header_errno_h_]$1[ = no; then + AC_EGREP_CPP(yes,[ +#define _XOPEN_SOURCE_EXTENDED 1 +#include <errno.h> +#ifdef ]$1[ +yes +#endif + ], [gl_cv_header_errno_h_]$1[=hidden]) + if test $gl_cv_header_errno_h_]$1[ = hidden; then + dnl The macro exists but is hidden. + dnl Define it to the same value. + AC_COMPUTE_INT([gl_cv_header_errno_h_]$1, $1, [ +#define _XOPEN_SOURCE_EXTENDED 1 +#include <errno.h> +/* The following two lines are a workaround against an autoconf-2.52 bug. */ +#include <stdio.h> +#include <stdlib.h> +]) + fi + fi + ]) + case $gl_cv_header_errno_h_]$1[ in + yes | no) + ]$1[_HIDDEN=0; ]$1[_VALUE= + ;; + *) + ]$1[_HIDDEN=1; ]$1[_VALUE="$gl_cv_header_errno_h_]$1[" + ;; + esac + AC_SUBST($1[_HIDDEN]) + AC_SUBST($1[_VALUE]) + fi +]) diff --git a/gl/m4/float_h.m4 b/gl/m4/float_h.m4 new file mode 100644 index 0000000000..d36e3a46ca --- /dev/null +++ b/gl/m4/float_h.m4 @@ -0,0 +1,19 @@ +# float_h.m4 serial 3 +dnl Copyright (C) 2007 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FLOAT_H], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) + FLOAT_H= + case "$host_os" in + beos* | openbsd*) + FLOAT_H=float.h + gl_CHECK_NEXT_HEADERS([float.h]) + ;; + esac + AC_SUBST([FLOAT_H]) +]) diff --git a/gl/m4/fseeko.m4 b/gl/m4/fseeko.m4 new file mode 100644 index 0000000000..3d77365688 --- /dev/null +++ b/gl/m4/fseeko.m4 @@ -0,0 +1,34 @@ +# fseeko.m4 serial 4 +dnl Copyright (C) 2007-2008 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_FSEEKO], +[ + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([gl_STDIN_LARGE_OFFSET]) + + dnl Persuade glibc <stdio.h> to declare fseeko(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_CACHE_CHECK([for fseeko], [gl_cv_func_fseeko], + [ + AC_TRY_LINK([#include <stdio.h>], [fseeko (stdin, 0, 0);], + [gl_cv_func_fseeko=yes], [gl_cv_func_fseeko=no]) + ]) + if test $gl_cv_func_fseeko = no; then + HAVE_FSEEKO=0 + gl_REPLACE_FSEEKO + elif test $gl_cv_var_stdin_large_offset = no; then + gl_REPLACE_FSEEKO + fi +]) + +AC_DEFUN([gl_REPLACE_FSEEKO], +[ + AC_LIBOBJ([fseeko]) + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) + REPLACE_FSEEKO=1 +]) diff --git a/gl/m4/intmax_t.m4 b/gl/m4/intmax_t.m4 new file mode 100644 index 0000000000..50ae35d223 --- /dev/null +++ b/gl/m4/intmax_t.m4 @@ -0,0 +1,61 @@ +# intmax_t.m4 serial 6 +dnl Copyright (C) 1997-2004, 2006-2007 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Paul Eggert. + +AC_PREREQ(2.13) + +# Define intmax_t to 'long' or 'long long' +# if it is not already defined in <stdint.h> or <inttypes.h>. + +AC_DEFUN([gl_AC_TYPE_INTMAX_T], +[ + dnl For simplicity, we assume that a header file defines 'intmax_t' if and + dnl only if it defines 'uintmax_t'. + AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) + AC_REQUIRE([gl_AC_HEADER_STDINT_H]) + if test $gl_cv_header_inttypes_h = no && test $gl_cv_header_stdint_h = no; then + AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) + test $ac_cv_type_long_long_int = yes \ + && ac_type='long long' \ + || ac_type='long' + AC_DEFINE_UNQUOTED(intmax_t, $ac_type, + [Define to long or long long if <inttypes.h> and <stdint.h> don't define.]) + else + AC_DEFINE(HAVE_INTMAX_T, 1, + [Define if you have the 'intmax_t' type in <stdint.h> or <inttypes.h>.]) + fi +]) + +dnl An alternative would be to explicitly test for 'intmax_t'. + +AC_DEFUN([gt_AC_TYPE_INTMAX_T], +[ + AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) + AC_REQUIRE([gl_AC_HEADER_STDINT_H]) + AC_CACHE_CHECK(for intmax_t, gt_cv_c_intmax_t, + [AC_TRY_COMPILE([ +#include <stddef.h> +#include <stdlib.h> +#if HAVE_STDINT_H_WITH_UINTMAX +#include <stdint.h> +#endif +#if HAVE_INTTYPES_H_WITH_UINTMAX +#include <inttypes.h> +#endif +], [intmax_t x = -1; return !x;], gt_cv_c_intmax_t=yes, gt_cv_c_intmax_t=no)]) + if test $gt_cv_c_intmax_t = yes; then + AC_DEFINE(HAVE_INTMAX_T, 1, + [Define if you have the 'intmax_t' type in <stdint.h> or <inttypes.h>.]) + else + AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) + test $ac_cv_type_long_long_int = yes \ + && ac_type='long long' \ + || ac_type='long' + AC_DEFINE_UNQUOTED(intmax_t, $ac_type, + [Define to long or long long if <stdint.h> and <inttypes.h> don't define.]) + fi +]) diff --git a/gl/m4/inttypes_h.m4 b/gl/m4/inttypes_h.m4 new file mode 100644 index 0000000000..edc8ecb2db --- /dev/null +++ b/gl/m4/inttypes_h.m4 @@ -0,0 +1,26 @@ +# inttypes_h.m4 serial 7 +dnl Copyright (C) 1997-2004, 2006 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Paul Eggert. + +# Define HAVE_INTTYPES_H_WITH_UINTMAX if <inttypes.h> exists, +# doesn't clash with <sys/types.h>, and declares uintmax_t. + +AC_DEFUN([gl_AC_HEADER_INTTYPES_H], +[ + AC_CACHE_CHECK([for inttypes.h], gl_cv_header_inttypes_h, + [AC_TRY_COMPILE( + [#include <sys/types.h> +#include <inttypes.h>], + [uintmax_t i = (uintmax_t) -1; return !i;], + gl_cv_header_inttypes_h=yes, + gl_cv_header_inttypes_h=no)]) + if test $gl_cv_header_inttypes_h = yes; then + AC_DEFINE_UNQUOTED(HAVE_INTTYPES_H_WITH_UINTMAX, 1, + [Define if <inttypes.h> exists, doesn't clash with <sys/types.h>, + and declares uintmax_t. ]) + fi +]) diff --git a/gl/m4/longlong.m4 b/gl/m4/longlong.m4 new file mode 100644 index 0000000000..15bf9dacad --- /dev/null +++ b/gl/m4/longlong.m4 @@ -0,0 +1,106 @@ +# longlong.m4 serial 13 +dnl Copyright (C) 1999-2007 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Paul Eggert. + +# Define HAVE_LONG_LONG_INT if 'long long int' works. +# This fixes a bug in Autoconf 2.61, but can be removed once we +# assume 2.62 everywhere. + +# Note: If the type 'long long int' exists but is only 32 bits large +# (as on some very old compilers), HAVE_LONG_LONG_INT will not be +# defined. In this case you can treat 'long long int' like 'long int'. + +AC_DEFUN([AC_TYPE_LONG_LONG_INT], +[ + AC_CACHE_CHECK([for long long int], [ac_cv_type_long_long_int], + [AC_LINK_IFELSE( + [_AC_TYPE_LONG_LONG_SNIPPET], + [dnl This catches a bug in Tandem NonStop Kernel (OSS) cc -O circa 2004. + dnl If cross compiling, assume the bug isn't important, since + dnl nobody cross compiles for this platform as far as we know. + AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[@%:@include <limits.h> + @%:@ifndef LLONG_MAX + @%:@ define HALF \ + (1LL << (sizeof (long long int) * CHAR_BIT - 2)) + @%:@ define LLONG_MAX (HALF - 1 + HALF) + @%:@endif]], + [[long long int n = 1; + int i; + for (i = 0; ; i++) + { + long long int m = n << i; + if (m >> i != n) + return 1; + if (LLONG_MAX / 2 < m) + break; + } + return 0;]])], + [ac_cv_type_long_long_int=yes], + [ac_cv_type_long_long_int=no], + [ac_cv_type_long_long_int=yes])], + [ac_cv_type_long_long_int=no])]) + if test $ac_cv_type_long_long_int = yes; then + AC_DEFINE([HAVE_LONG_LONG_INT], 1, + [Define to 1 if the system has the type `long long int'.]) + fi +]) + +# Define HAVE_UNSIGNED_LONG_LONG_INT if 'unsigned long long int' works. +# This fixes a bug in Autoconf 2.61, but can be removed once we +# assume 2.62 everywhere. + +# Note: If the type 'unsigned long long int' exists but is only 32 bits +# large (as on some very old compilers), AC_TYPE_UNSIGNED_LONG_LONG_INT +# will not be defined. In this case you can treat 'unsigned long long int' +# like 'unsigned long int'. + +AC_DEFUN([AC_TYPE_UNSIGNED_LONG_LONG_INT], +[ + AC_CACHE_CHECK([for unsigned long long int], + [ac_cv_type_unsigned_long_long_int], + [AC_LINK_IFELSE( + [_AC_TYPE_LONG_LONG_SNIPPET], + [ac_cv_type_unsigned_long_long_int=yes], + [ac_cv_type_unsigned_long_long_int=no])]) + if test $ac_cv_type_unsigned_long_long_int = yes; then + AC_DEFINE([HAVE_UNSIGNED_LONG_LONG_INT], 1, + [Define to 1 if the system has the type `unsigned long long int'.]) + fi +]) + +# Expands to a C program that can be used to test for simultaneous support +# of 'long long' and 'unsigned long long'. We don't want to say that +# 'long long' is available if 'unsigned long long' is not, or vice versa, +# because too many programs rely on the symmetry between signed and unsigned +# integer types (excluding 'bool'). +AC_DEFUN([_AC_TYPE_LONG_LONG_SNIPPET], +[ + AC_LANG_PROGRAM( + [[/* For now, do not test the preprocessor; as of 2007 there are too many + implementations with broken preprocessors. Perhaps this can + be revisited in 2012. In the meantime, code should not expect + #if to work with literals wider than 32 bits. */ + /* Test literals. */ + long long int ll = 9223372036854775807ll; + long long int nll = -9223372036854775807LL; + unsigned long long int ull = 18446744073709551615ULL; + /* Test constant expressions. */ + typedef int a[((-9223372036854775807LL < 0 && 0 < 9223372036854775807ll) + ? 1 : -1)]; + typedef int b[(18446744073709551615ULL <= (unsigned long long int) -1 + ? 1 : -1)]; + int i = 63;]], + [[/* Test availability of runtime routines for shift and division. */ + long long int llmax = 9223372036854775807ll; + unsigned long long int ullmax = 18446744073709551615ull; + return ((ll << 63) | (ll >> 63) | (ll < i) | (ll > i) + | (llmax / ll) | (llmax % ll) + | (ull << 63) | (ull >> 63) | (ull << i) | (ull >> i) + | (ullmax / ull) | (ullmax % ull));]]) +]) diff --git a/gl/m4/lseek.m4 b/gl/m4/lseek.m4 new file mode 100644 index 0000000000..f336990709 --- /dev/null +++ b/gl/m4/lseek.m4 @@ -0,0 +1,50 @@ +# lseek.m4 serial 4 +dnl Copyright (C) 2007 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_LSEEK], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_REQUIRE([AC_PROG_CC]) + AC_CACHE_CHECK([whether lseek detects pipes], [gl_cv_func_lseek_pipe], + [if test $cross_compiling = no; then + AC_LINK_IFELSE([ +#include <sys/types.h> /* for off_t */ +#include <stdio.h> /* for SEEK_CUR */ +#include <unistd.h> +int main () +{ + /* Exit with success only if stdin is seekable. */ + return lseek (0, (off_t)0, SEEK_CUR) < 0; +}], + [if test -s conftest$ac_exeext \ + && ./conftest$ac_exeext < conftest.$ac_ext \ + && { echo hi | ./conftest$ac_exeext; test $? = 1; }; then + gl_cv_func_lseek_pipe=yes + else + gl_cv_func_lseek_pipe=no + fi], + [gl_cv_func_lseek_pipe=no]) + else + AC_COMPILE_IFELSE([ +#if ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) || defined __BEOS__ +/* mingw and BeOS mistakenly return 0 when trying to seek on pipes. */ + Choke me. +#endif], + [gl_cv_func_lseek_pipe=yes], [gl_cv_func_lseek_pipe=no]) + fi]) + if test $gl_cv_func_lseek_pipe = no; then + gl_REPLACE_LSEEK + fi +]) + +AC_DEFUN([gl_REPLACE_LSEEK], +[ + AC_LIBOBJ([lseek]) + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + REPLACE_LSEEK=1 + AC_DEFINE([LSEEK_PIPE_BROKEN], [1], + [Define to 1 if lseek does not detect pipes.]) +]) diff --git a/gl/m4/malloc.m4 b/gl/m4/malloc.m4 new file mode 100644 index 0000000000..764f2a9fa1 --- /dev/null +++ b/gl/m4/malloc.m4 @@ -0,0 +1,41 @@ +# malloc.m4 serial 8 +dnl Copyright (C) 2007 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# gl_FUNC_MALLOC_POSIX +# -------------------- +# Test whether 'malloc' is POSIX compliant (sets errno to ENOMEM when it +# fails), and replace malloc if it is not. +AC_DEFUN([gl_FUNC_MALLOC_POSIX], +[ + AC_REQUIRE([gl_CHECK_MALLOC_POSIX]) + if test $gl_cv_func_malloc_posix = yes; then + HAVE_MALLOC_POSIX=1 + AC_DEFINE([HAVE_MALLOC_POSIX], 1, + [Define if the 'malloc' function is POSIX compliant.]) + else + AC_LIBOBJ([malloc]) + HAVE_MALLOC_POSIX=0 + fi + AC_SUBST([HAVE_MALLOC_POSIX]) +]) + +# Test whether malloc, realloc, calloc are POSIX compliant, +# Set gl_cv_func_malloc_posix to yes or no accordingly. +AC_DEFUN([gl_CHECK_MALLOC_POSIX], +[ + AC_CACHE_CHECK([whether malloc, realloc, calloc are POSIX compliant], + [gl_cv_func_malloc_posix], + [ + dnl It is too dangerous to try to allocate a large amount of memory: + dnl some systems go to their knees when you do that. So assume that + dnl all Unix implementations of the function are POSIX compliant. + AC_TRY_COMPILE([], + [#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ + choke me + #endif + ], [gl_cv_func_malloc_posix=yes], [gl_cv_func_malloc_posix=no]) + ]) +]) diff --git a/gl/m4/printf.m4 b/gl/m4/printf.m4 new file mode 100644 index 0000000000..d544edd72d --- /dev/null +++ b/gl/m4/printf.m4 @@ -0,0 +1,1309 @@ +# printf.m4 serial 23 +dnl Copyright (C) 2003, 2007-2008 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Test whether the *printf family of functions supports the 'j', 'z', 't', +dnl 'L' size specifiers. (ISO C99, POSIX:2001) +dnl Result is gl_cv_func_printf_sizes_c99. + +AC_DEFUN([gl_PRINTF_SIZES_C99], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([gl_AC_HEADER_STDINT_H]) + AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports size specifiers as in C99], + [gl_cv_func_printf_sizes_c99], + [ + AC_TRY_RUN([ +#include <stddef.h> +#include <stdio.h> +#include <string.h> +#include <sys/types.h> +#if HAVE_STDINT_H_WITH_UINTMAX +# include <stdint.h> +#endif +#if HAVE_INTTYPES_H_WITH_UINTMAX +# include <inttypes.h> +#endif +static char buf[100]; +int main () +{ +#if HAVE_STDINT_H_WITH_UINTMAX || HAVE_INTTYPES_H_WITH_UINTMAX + buf[0] = '\0'; + if (sprintf (buf, "%ju %d", (uintmax_t) 12345671, 33, 44, 55) < 0 + || strcmp (buf, "12345671 33") != 0) + return 1; +#endif + buf[0] = '\0'; + if (sprintf (buf, "%zu %d", (size_t) 12345672, 33, 44, 55) < 0 + || strcmp (buf, "12345672 33") != 0) + return 1; + buf[0] = '\0'; + if (sprintf (buf, "%tu %d", (ptrdiff_t) 12345673, 33, 44, 55) < 0 + || strcmp (buf, "12345673 33") != 0) + return 1; + buf[0] = '\0'; + if (sprintf (buf, "%Lg %d", (long double) 1.5, 33, 44, 55) < 0 + || strcmp (buf, "1.5 33") != 0) + return 1; + return 0; +}], [gl_cv_func_printf_sizes_c99=yes], [gl_cv_func_printf_sizes_c99=no], + [ +changequote(,)dnl + case "$host_os" in + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_printf_sizes_c99="guessing yes";; + # Guess yes on FreeBSD >= 5. + freebsd[1-4]*) gl_cv_func_printf_sizes_c99="guessing no";; + freebsd* | kfreebsd*) gl_cv_func_printf_sizes_c99="guessing yes";; + # Guess yes on MacOS X >= 10.3. + darwin[1-6].*) gl_cv_func_printf_sizes_c99="guessing no";; + darwin*) gl_cv_func_printf_sizes_c99="guessing yes";; + # Guess yes on OpenBSD >= 3.9. + openbsd[1-2].* | openbsd3.[0-8] | openbsd3.[0-8].*) + gl_cv_func_printf_sizes_c99="guessing no";; + openbsd*) gl_cv_func_printf_sizes_c99="guessing yes";; + # Guess yes on Solaris >= 2.10. + solaris2.[0-9]*) gl_cv_func_printf_sizes_c99="guessing no";; + solaris*) gl_cv_func_printf_sizes_c99="guessing yes";; + # Guess yes on NetBSD >= 3. + netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) + gl_cv_func_printf_sizes_c99="guessing no";; + netbsd*) gl_cv_func_printf_sizes_c99="guessing yes";; + # If we don't know, assume the worst. + *) gl_cv_func_printf_sizes_c99="guessing no";; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports 'long double' +dnl arguments together with the 'L' size specifier. (ISO C99, POSIX:2001) +dnl Result is gl_cv_func_printf_long_double. + +AC_DEFUN([gl_PRINTF_LONG_DOUBLE], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports 'long double' arguments], + [gl_cv_func_printf_long_double], + [ + AC_TRY_RUN([ +#include <stdio.h> +#include <string.h> +static char buf[10000]; +int main () +{ + buf[0] = '\0'; + if (sprintf (buf, "%Lf %d", 1.75L, 33, 44, 55) < 0 + || strcmp (buf, "1.750000 33") != 0) + return 1; + buf[0] = '\0'; + if (sprintf (buf, "%Le %d", 1.75L, 33, 44, 55) < 0 + || strcmp (buf, "1.750000e+00 33") != 0) + return 1; + buf[0] = '\0'; + if (sprintf (buf, "%Lg %d", 1.75L, 33, 44, 55) < 0 + || strcmp (buf, "1.75 33") != 0) + return 1; + return 0; +}], [gl_cv_func_printf_long_double=yes], [gl_cv_func_printf_long_double=no], + [ +changequote(,)dnl + case "$host_os" in + beos*) gl_cv_func_printf_long_double="guessing no";; + mingw* | pw*) gl_cv_func_printf_long_double="guessing no";; + *) gl_cv_func_printf_long_double="guessing yes";; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports infinite and NaN +dnl 'double' arguments in the %f, %e, %g directives. (ISO C99, POSIX:2001) +dnl Result is gl_cv_func_printf_infinite. + +AC_DEFUN([gl_PRINTF_INFINITE], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports infinite 'double' arguments], + [gl_cv_func_printf_infinite], + [ + AC_TRY_RUN([ +#include <stdio.h> +#include <string.h> +static int +strisnan (const char *string, size_t start_index, size_t end_index) +{ + if (start_index < end_index) + { + if (string[start_index] == '-') + start_index++; + if (start_index + 3 <= end_index + && memcmp (string + start_index, "nan", 3) == 0) + { + start_index += 3; + if (start_index == end_index + || (string[start_index] == '(' && string[end_index - 1] == ')')) + return 1; + } + } + return 0; +} +static char buf[10000]; +static double zero = 0.0; +int main () +{ + if (sprintf (buf, "%f", 1.0 / 0.0) < 0 + || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) + return 1; + if (sprintf (buf, "%f", -1.0 / 0.0) < 0 + || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) + return 1; + if (sprintf (buf, "%f", zero / zero) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + if (sprintf (buf, "%e", 1.0 / 0.0) < 0 + || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) + return 1; + if (sprintf (buf, "%e", -1.0 / 0.0) < 0 + || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) + return 1; + if (sprintf (buf, "%e", zero / zero) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + if (sprintf (buf, "%g", 1.0 / 0.0) < 0 + || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) + return 1; + if (sprintf (buf, "%g", -1.0 / 0.0) < 0 + || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) + return 1; + if (sprintf (buf, "%g", zero / zero) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + return 0; +}], [gl_cv_func_printf_infinite=yes], [gl_cv_func_printf_infinite=no], + [ +changequote(,)dnl + case "$host_os" in + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_printf_infinite="guessing yes";; + # Guess yes on FreeBSD >= 6. + freebsd[1-5]*) gl_cv_func_printf_infinite="guessing no";; + freebsd* | kfreebsd*) gl_cv_func_printf_infinite="guessing yes";; + # Guess yes on MacOS X >= 10.3. + darwin[1-6].*) gl_cv_func_printf_infinite="guessing no";; + darwin*) gl_cv_func_printf_infinite="guessing yes";; + # Guess yes on HP-UX >= 11. + hpux[7-9]* | hpux10*) gl_cv_func_printf_infinite="guessing no";; + hpux*) gl_cv_func_printf_infinite="guessing yes";; + # Guess yes on NetBSD >= 3. + netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) + gl_cv_func_printf_infinite="guessing no";; + netbsd*) gl_cv_func_printf_infinite="guessing yes";; + # Guess yes on BeOS. + beos*) gl_cv_func_printf_infinite="guessing yes";; + # If we don't know, assume the worst. + *) gl_cv_func_printf_infinite="guessing no";; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports infinite and NaN +dnl 'long double' arguments in the %f, %e, %g directives. (ISO C99, POSIX:2001) +dnl Result is gl_cv_func_printf_infinite_long_double. + +AC_DEFUN([gl_PRINTF_INFINITE_LONG_DOUBLE], +[ + AC_REQUIRE([gl_PRINTF_LONG_DOUBLE]) + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_C_BIGENDIAN]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + dnl The user can set or unset the variable gl_printf_safe to indicate + dnl that he wishes a safe handling of non-IEEE-754 'long double' values. + if test -n "$gl_printf_safe"; then + AC_DEFINE([CHECK_PRINTF_SAFE], 1, + [Define if you wish *printf() functions that have a safe handling of + non-IEEE-754 'long double' values.]) + fi + case "$gl_cv_func_printf_long_double" in + *yes) + AC_CACHE_CHECK([whether printf supports infinite 'long double' arguments], + [gl_cv_func_printf_infinite_long_double], + [ + AC_TRY_RUN([ +]GL_NOCRASH[ +#include <float.h> +#include <stdio.h> +#include <string.h> +static int +strisnan (const char *string, size_t start_index, size_t end_index) +{ + if (start_index < end_index) + { + if (string[start_index] == '-') + start_index++; + if (start_index + 3 <= end_index + && memcmp (string + start_index, "nan", 3) == 0) + { + start_index += 3; + if (start_index == end_index + || (string[start_index] == '(' && string[end_index - 1] == ')')) + return 1; + } + } + return 0; +} +static char buf[10000]; +static long double zeroL = 0.0L; +int main () +{ + nocrash_init(); + if (sprintf (buf, "%Lf", 1.0L / 0.0L) < 0 + || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) + return 1; + if (sprintf (buf, "%Lf", -1.0L / 0.0L) < 0 + || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) + return 1; + if (sprintf (buf, "%Lf", zeroL / zeroL) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + if (sprintf (buf, "%Le", 1.0L / 0.0L) < 0 + || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) + return 1; + if (sprintf (buf, "%Le", -1.0L / 0.0L) < 0 + || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) + return 1; + if (sprintf (buf, "%Le", zeroL / zeroL) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + if (sprintf (buf, "%Lg", 1.0L / 0.0L) < 0 + || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) + return 1; + if (sprintf (buf, "%Lg", -1.0L / 0.0L) < 0 + || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) + return 1; + if (sprintf (buf, "%Lg", zeroL / zeroL) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; +#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_)) +/* Representation of an 80-bit 'long double' as an initializer for a sequence + of 'unsigned int' words. */ +# ifdef WORDS_BIGENDIAN +# define LDBL80_WORDS(exponent,manthi,mantlo) \ + { ((unsigned int) (exponent) << 16) | ((unsigned int) (manthi) >> 16), \ + ((unsigned int) (manthi) << 16) | (unsigned int) (mantlo) >> 16), \ + (unsigned int) (mantlo) << 16 \ + } +# else +# define LDBL80_WORDS(exponent,manthi,mantlo) \ + { mantlo, manthi, exponent } +# endif + { /* Quiet NaN. */ + static union { unsigned int word[4]; long double value; } x = + { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) }; + if (sprintf (buf, "%Lf", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + if (sprintf (buf, "%Le", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + if (sprintf (buf, "%Lg", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + } + { + /* Signalling NaN. */ + static union { unsigned int word[4]; long double value; } x = + { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) }; + if (sprintf (buf, "%Lf", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + if (sprintf (buf, "%Le", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + if (sprintf (buf, "%Lg", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + } + { /* Pseudo-NaN. */ + static union { unsigned int word[4]; long double value; } x = + { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) }; + if (sprintf (buf, "%Lf", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + if (sprintf (buf, "%Le", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + if (sprintf (buf, "%Lg", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + } + { /* Pseudo-Infinity. */ + static union { unsigned int word[4]; long double value; } x = + { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) }; + if (sprintf (buf, "%Lf", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + if (sprintf (buf, "%Le", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + if (sprintf (buf, "%Lg", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + } + { /* Pseudo-Zero. */ + static union { unsigned int word[4]; long double value; } x = + { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) }; + if (sprintf (buf, "%Lf", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + if (sprintf (buf, "%Le", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + if (sprintf (buf, "%Lg", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + } + { /* Unnormalized number. */ + static union { unsigned int word[4]; long double value; } x = + { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) }; + if (sprintf (buf, "%Lf", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + if (sprintf (buf, "%Le", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + if (sprintf (buf, "%Lg", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + } + { /* Pseudo-Denormal. */ + static union { unsigned int word[4]; long double value; } x = + { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) }; + if (sprintf (buf, "%Lf", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + if (sprintf (buf, "%Le", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + if (sprintf (buf, "%Lg", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + return 1; + } +#endif + return 0; +}], + [gl_cv_func_printf_infinite_long_double=yes], + [gl_cv_func_printf_infinite_long_double=no], + [ +changequote(,)dnl + case "$host_cpu" in + # Guess no on ia64, x86_64, i386. + ia64 | x86_64 | i*86) gl_cv_func_printf_infinite_long_double="guessing no";; + *) + case "$host_os" in + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_printf_infinite_long_double="guessing yes";; + # Guess yes on FreeBSD >= 6. + freebsd[1-5]*) gl_cv_func_printf_infinite_long_double="guessing no";; + freebsd* | kfreebsd*) gl_cv_func_printf_infinite_long_double="guessing yes";; + # Guess yes on MacOS X >= 10.3. + darwin[1-6].*) gl_cv_func_printf_infinite_long_double="guessing no";; + darwin*) gl_cv_func_printf_infinite_long_double="guessing yes";; + # Guess yes on HP-UX >= 11. + hpux[7-9]* | hpux10*) gl_cv_func_printf_infinite_long_double="guessing no";; + hpux*) gl_cv_func_printf_infinite_long_double="guessing yes";; + # Guess yes on NetBSD >= 3. + netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) + gl_cv_func_printf_infinite_long_double="guessing no";; + netbsd*) gl_cv_func_printf_infinite_long_double="guessing yes";; + # If we don't know, assume the worst. + *) gl_cv_func_printf_infinite_long_double="guessing no";; + esac + ;; + esac +changequote([,])dnl + ]) + ]) + ;; + *) + gl_cv_func_printf_infinite_long_double="irrelevant" + ;; + esac +]) + +dnl Test whether the *printf family of functions supports the 'a' and 'A' +dnl conversion specifier for hexadecimal output of floating-point numbers. +dnl (ISO C99, POSIX:2001) +dnl Result is gl_cv_func_printf_directive_a. + +AC_DEFUN([gl_PRINTF_DIRECTIVE_A], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports the 'a' and 'A' directives], + [gl_cv_func_printf_directive_a], + [ + AC_TRY_RUN([ +#include <stdio.h> +#include <string.h> +static char buf[100]; +int main () +{ + if (sprintf (buf, "%a %d", 3.1416015625, 33, 44, 55) < 0 + || (strcmp (buf, "0x1.922p+1 33") != 0 + && strcmp (buf, "0x3.244p+0 33") != 0 + && strcmp (buf, "0x6.488p-1 33") != 0 + && strcmp (buf, "0xc.91p-2 33") != 0)) + return 1; + if (sprintf (buf, "%A %d", -3.1416015625, 33, 44, 55) < 0 + || (strcmp (buf, "-0X1.922P+1 33") != 0 + && strcmp (buf, "-0X3.244P+0 33") != 0 + && strcmp (buf, "-0X6.488P-1 33") != 0 + && strcmp (buf, "-0XC.91P-2 33") != 0)) + return 1; + /* This catches a FreeBSD 6.1 bug: it doesn't round. */ + if (sprintf (buf, "%.2a %d", 1.51, 33, 44, 55) < 0 + || (strcmp (buf, "0x1.83p+0 33") != 0 + && strcmp (buf, "0x3.05p-1 33") != 0 + && strcmp (buf, "0x6.0ap-2 33") != 0 + && strcmp (buf, "0xc.14p-3 33") != 0)) + return 1; + /* This catches a FreeBSD 6.1 bug. See + <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */ + if (sprintf (buf, "%010a %d", 1.0 / 0.0, 33, 44, 55) < 0 + || buf[0] == '0') + return 1; + /* This catches a MacOS X 10.3.9 (Darwin 7.9) bug. */ + if (sprintf (buf, "%.1a", 1.999) < 0 + || (strcmp (buf, "0x1.0p+1") != 0 + && strcmp (buf, "0x2.0p+0") != 0 + && strcmp (buf, "0x4.0p-1") != 0 + && strcmp (buf, "0x8.0p-2") != 0)) + return 1; + /* This catches the same MacOS X 10.3.9 (Darwin 7.9) bug and also a + glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>. */ + if (sprintf (buf, "%.1La", 1.999L) < 0 + || (strcmp (buf, "0x1.0p+1") != 0 + && strcmp (buf, "0x2.0p+0") != 0 + && strcmp (buf, "0x4.0p-1") != 0 + && strcmp (buf, "0x8.0p-2") != 0)) + return 1; + return 0; +}], [gl_cv_func_printf_directive_a=yes], [gl_cv_func_printf_directive_a=no], + [ + case "$host_os" in + # Guess yes on glibc >= 2.5 systems. + *-gnu*) + AC_EGREP_CPP([BZ2908], [ + #include <features.h> + #ifdef __GNU_LIBRARY__ + #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 5) || (__GLIBC__ > 2) + BZ2908 + #endif + #endif + ], + [gl_cv_func_printf_directive_a="guessing yes"], + [gl_cv_func_printf_directive_a="guessing no"]) + ;; + # If we don't know, assume the worst. + *) gl_cv_func_printf_directive_a="guessing no";; + esac + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports the %F format +dnl directive. (ISO C99, POSIX:2001) +dnl Result is gl_cv_func_printf_directive_f. + +AC_DEFUN([gl_PRINTF_DIRECTIVE_F], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports the 'F' directive], + [gl_cv_func_printf_directive_f], + [ + AC_TRY_RUN([ +#include <stdio.h> +#include <string.h> +static char buf[100]; +int main () +{ + if (sprintf (buf, "%F %d", 1234567.0, 33, 44, 55) < 0 + || strcmp (buf, "1234567.000000 33") != 0) + return 1; + if (sprintf (buf, "%F", 1.0 / 0.0) < 0 + || (strcmp (buf, "INF") != 0 && strcmp (buf, "INFINITY") != 0)) + return 1; + /* This catches a Cygwin 2007 bug. */ + if (sprintf (buf, "%.F", 1234.0) < 0 + || strcmp (buf, "1234") != 0) + return 1; + return 0; +}], [gl_cv_func_printf_directive_f=yes], [gl_cv_func_printf_directive_f=no], + [ +changequote(,)dnl + case "$host_os" in + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_printf_directive_f="guessing yes";; + # Guess yes on FreeBSD >= 6. + freebsd[1-5]*) gl_cv_func_printf_directive_f="guessing no";; + freebsd* | kfreebsd*) gl_cv_func_printf_directive_f="guessing yes";; + # Guess yes on MacOS X >= 10.3. + darwin[1-6].*) gl_cv_func_printf_directive_f="guessing no";; + darwin*) gl_cv_func_printf_directive_f="guessing yes";; + # Guess yes on Solaris >= 2.10. + solaris2.[0-9]*) gl_cv_func_printf_directive_f="guessing no";; + solaris*) gl_cv_func_printf_directive_f="guessing yes";; + # If we don't know, assume the worst. + *) gl_cv_func_printf_directive_f="guessing no";; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports the %n format +dnl directive. (ISO C99, POSIX:2001) +dnl Result is gl_cv_func_printf_directive_n. + +AC_DEFUN([gl_PRINTF_DIRECTIVE_N], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports the 'n' directive], + [gl_cv_func_printf_directive_n], + [ + AC_TRY_RUN([ +#include <stdio.h> +#include <string.h> +static char fmtstring[10]; +static char buf[100]; +int main () +{ + int count = -1; + /* Copy the format string. Some systems (glibc with _FORTIFY_SOURCE=2) + support %n in format strings in read-only memory but not in writable + memory. */ + strcpy (fmtstring, "%d %n"); + if (sprintf (buf, fmtstring, 123, &count, 33, 44, 55) < 0 + || strcmp (buf, "123 ") != 0 + || count != 4) + return 1; + return 0; +}], [gl_cv_func_printf_directive_n=yes], [gl_cv_func_printf_directive_n=no], + [ +changequote(,)dnl + case "$host_os" in + *) gl_cv_func_printf_directive_n="guessing yes";; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports POSIX/XSI format +dnl strings with positions. (POSIX:2001) +dnl Result is gl_cv_func_printf_positions. + +AC_DEFUN([gl_PRINTF_POSITIONS], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports POSIX/XSI format strings with positions], + [gl_cv_func_printf_positions], + [ + AC_TRY_RUN([ +#include <stdio.h> +#include <string.h> +/* The string "%2$d %1$d", with dollar characters protected from the shell's + dollar expansion (possibly an autoconf bug). */ +static char format[] = { '%', '2', '$', 'd', ' ', '%', '1', '$', 'd', '\0' }; +static char buf[100]; +int main () +{ + sprintf (buf, format, 33, 55); + return (strcmp (buf, "55 33") != 0); +}], [gl_cv_func_printf_positions=yes], [gl_cv_func_printf_positions=no], + [ +changequote(,)dnl + case "$host_os" in + netbsd[1-3]* | netbsdelf[1-3]* | netbsdaout[1-3]* | netbsdcoff[1-3]*) + gl_cv_func_printf_positions="guessing no";; + beos*) gl_cv_func_printf_positions="guessing no";; + mingw* | pw*) gl_cv_func_printf_positions="guessing no";; + *) gl_cv_func_printf_positions="guessing yes";; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports POSIX/XSI format +dnl strings with the ' flag for grouping of decimal digits. (POSIX:2001) +dnl Result is gl_cv_func_printf_flag_grouping. + +AC_DEFUN([gl_PRINTF_FLAG_GROUPING], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports the grouping flag], + [gl_cv_func_printf_flag_grouping], + [ + AC_TRY_RUN([ +#include <stdio.h> +#include <string.h> +static char buf[100]; +int main () +{ + if (sprintf (buf, "%'d %d", 1234567, 99) < 0 + || buf[strlen (buf) - 1] != '9') + return 1; + return 0; +}], [gl_cv_func_printf_flag_grouping=yes], [gl_cv_func_printf_flag_grouping=no], + [ +changequote(,)dnl + case "$host_os" in + cygwin*) gl_cv_func_printf_flag_grouping="guessing no";; + netbsd*) gl_cv_func_printf_flag_grouping="guessing no";; + mingw* | pw*) gl_cv_func_printf_flag_grouping="guessing no";; + *) gl_cv_func_printf_flag_grouping="guessing yes";; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports the - flag correctly. +dnl (ISO C99.) See +dnl <http://lists.gnu.org/archive/html/bug-coreutils/2008-02/msg00035.html> +dnl Result is gl_cv_func_printf_flag_leftadjust. + +AC_DEFUN([gl_PRINTF_FLAG_LEFTADJUST], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports the left-adjust flag correctly], + [gl_cv_func_printf_flag_leftadjust], + [ + AC_TRY_RUN([ +#include <stdio.h> +#include <string.h> +static char buf[100]; +int main () +{ + /* Check that a '-' flag is not annihilated by a negative width. */ + if (sprintf (buf, "a%-*sc", -3, "b") < 0 + || strcmp (buf, "ab c") != 0) + return 1; + return 0; +}], + [gl_cv_func_printf_flag_leftadjust=yes], + [gl_cv_func_printf_flag_leftadjust=no], + [ +changequote(,)dnl + case "$host_os" in + # Guess yes on HP-UX 11. + hpux11*) gl_cv_func_printf_flag_leftadjust="guessing yes";; + # Guess no on HP-UX 10 and older. + hpux*) gl_cv_func_printf_flag_leftadjust="guessing no";; + # Guess yes otherwise. + *) gl_cv_func_printf_flag_leftadjust="guessing yes";; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports padding of non-finite +dnl values with the 0 flag correctly. (ISO C99 + TC1 + TC2.) See +dnl <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> +dnl Result is gl_cv_func_printf_flag_zero. + +AC_DEFUN([gl_PRINTF_FLAG_ZERO], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports the zero flag correctly], + [gl_cv_func_printf_flag_zero], + [ + AC_TRY_RUN([ +#include <stdio.h> +#include <string.h> +static char buf[100]; +int main () +{ + if (sprintf (buf, "%010f", 1.0 / 0.0, 33, 44, 55) < 0 + || (strcmp (buf, " inf") != 0 + && strcmp (buf, " infinity") != 0)) + return 1; + return 0; +}], [gl_cv_func_printf_flag_zero=yes], [gl_cv_func_printf_flag_zero=no], + [ +changequote(,)dnl + case "$host_os" in + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_printf_flag_zero="guessing yes";; + # Guess yes on BeOS. + beos*) gl_cv_func_printf_flag_zero="guessing yes";; + # If we don't know, assume the worst. + *) gl_cv_func_printf_flag_zero="guessing no";; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports large precisions. +dnl On mingw, precisions larger than 512 are treated like 512, in integer, +dnl floating-point or pointer output. On BeOS, precisions larger than 1044 +dnl crash the program. +dnl Result is gl_cv_func_printf_precision. + +AC_DEFUN([gl_PRINTF_PRECISION], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports large precisions], + [gl_cv_func_printf_precision], + [ + AC_TRY_RUN([ +#include <stdio.h> +#include <string.h> +static char buf[5000]; +int main () +{ +#ifdef __BEOS__ + /* On BeOS, this would crash and show a dialog box. Avoid the crash. */ + return 1; +#endif + if (sprintf (buf, "%.4000d %d", 1, 33, 44) < 4000 + 3) + return 1; + return 0; +}], [gl_cv_func_printf_precision=yes], [gl_cv_func_printf_precision=no], + [ +changequote(,)dnl + case "$host_os" in + # Guess no only on native Win32 and BeOS systems. + mingw* | pw*) gl_cv_func_printf_precision="guessing no" ;; + beos*) gl_cv_func_printf_precision="guessing no" ;; + *) gl_cv_func_printf_precision="guessing yes" ;; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the *printf family of functions recovers gracefully in case +dnl of an out-of-memory condition, or whether it crashes the entire program. +dnl Result is gl_cv_func_printf_enomem. + +AC_DEFUN([gl_PRINTF_ENOMEM], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf survives out-of-memory conditions], + [gl_cv_func_printf_enomem], + [ + if test "$cross_compiling" = no; then + AC_LANG_CONFTEST([AC_LANG_SOURCE([ +]GL_NOCRASH[ +changequote(,)dnl +#include <stdio.h> +#include <sys/types.h> +#include <sys/time.h> +#include <sys/resource.h> +#include <errno.h> +int main() +{ + struct rlimit limit; + int ret; + nocrash_init (); + /* Some printf implementations allocate temporary space with malloc. */ + /* On BSD systems, malloc() is limited by RLIMIT_DATA. */ +#ifdef RLIMIT_DATA + if (getrlimit (RLIMIT_DATA, &limit) < 0) + return 77; + if (limit.rlim_max == RLIM_INFINITY || limit.rlim_max > 5000000) + limit.rlim_max = 5000000; + limit.rlim_cur = limit.rlim_max; + if (setrlimit (RLIMIT_DATA, &limit) < 0) + return 77; +#endif + /* On Linux systems, malloc() is limited by RLIMIT_AS. */ +#ifdef RLIMIT_AS + if (getrlimit (RLIMIT_AS, &limit) < 0) + return 77; + if (limit.rlim_max == RLIM_INFINITY || limit.rlim_max > 5000000) + limit.rlim_max = 5000000; + limit.rlim_cur = limit.rlim_max; + if (setrlimit (RLIMIT_AS, &limit) < 0) + return 77; +#endif + /* Some printf implementations allocate temporary space on the stack. */ +#ifdef RLIMIT_STACK + if (getrlimit (RLIMIT_STACK, &limit) < 0) + return 77; + if (limit.rlim_max == RLIM_INFINITY || limit.rlim_max > 5000000) + limit.rlim_max = 5000000; + limit.rlim_cur = limit.rlim_max; + if (setrlimit (RLIMIT_STACK, &limit) < 0) + return 77; +#endif + ret = printf ("%.5000000f", 1.0); + return !(ret == 5000002 || (ret < 0 && errno == ENOMEM)); +} +changequote([,])dnl + ])]) + if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then + (./conftest + result=$? + if test $result != 0 && test $result != 77; then result=1; fi + exit $result + ) >/dev/null 2>/dev/null + case $? in + 0) gl_cv_func_printf_enomem="yes" ;; + 77) gl_cv_func_printf_enomem="guessing no" ;; + *) gl_cv_func_printf_enomem="no" ;; + esac + else + gl_cv_func_printf_enomem="guessing no" + fi + rm -fr conftest* + else +changequote(,)dnl + case "$host_os" in + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_printf_enomem="guessing yes";; + # Guess yes on Solaris. + solaris*) gl_cv_func_printf_enomem="guessing yes";; + # Guess yes on AIX. + aix*) gl_cv_func_printf_enomem="guessing yes";; + # Guess yes on HP-UX/hppa. + hpux*) case "$host_cpu" in + hppa*) gl_cv_func_printf_enomem="guessing yes";; + *) gl_cv_func_printf_enomem="guessing no";; + esac + ;; + # Guess yes on IRIX. + irix*) gl_cv_func_printf_enomem="guessing yes";; + # Guess yes on OSF/1. + osf*) gl_cv_func_printf_enomem="guessing yes";; + # Guess yes on BeOS. + beos*) gl_cv_func_printf_enomem="guessing yes";; + # If we don't know, assume the worst. + *) gl_cv_func_printf_enomem="guessing no";; + esac +changequote([,])dnl + fi + ]) +]) + +dnl Test whether the snprintf function exists. (ISO C99, POSIX:2001) +dnl Result is ac_cv_func_snprintf. + +AC_DEFUN([gl_SNPRINTF_PRESENCE], +[ + AC_CHECK_FUNCS_ONCE([snprintf]) +]) + +dnl Test whether the string produced by the snprintf function is always NUL +dnl terminated. (ISO C99, POSIX:2001) +dnl Result is gl_cv_func_snprintf_truncation_c99. + +AC_DEFUN([gl_SNPRINTF_TRUNCATION_C99], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether snprintf truncates the result as in C99], + [gl_cv_func_snprintf_truncation_c99], + [ + AC_TRY_RUN([ +#include <stdio.h> +#include <string.h> +static char buf[100]; +int main () +{ + strcpy (buf, "ABCDEF"); + snprintf (buf, 3, "%d %d", 4567, 89); + if (memcmp (buf, "45\0DEF", 6) != 0) + return 1; + return 0; +}], [gl_cv_func_snprintf_truncation_c99=yes], [gl_cv_func_snprintf_truncation_c99=no], + [ +changequote(,)dnl + case "$host_os" in + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on FreeBSD >= 5. + freebsd[1-4]*) gl_cv_func_snprintf_truncation_c99="guessing no";; + freebsd* | kfreebsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on MacOS X >= 10.3. + darwin[1-6].*) gl_cv_func_snprintf_truncation_c99="guessing no";; + darwin*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on OpenBSD >= 3.9. + openbsd[1-2].* | openbsd3.[0-8] | openbsd3.[0-8].*) + gl_cv_func_snprintf_truncation_c99="guessing no";; + openbsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on Solaris >= 2.6. + solaris2.[0-5]*) gl_cv_func_snprintf_truncation_c99="guessing no";; + solaris*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on AIX >= 4. + aix[1-3]*) gl_cv_func_snprintf_truncation_c99="guessing no";; + aix*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on HP-UX >= 11. + hpux[7-9]* | hpux10*) gl_cv_func_snprintf_truncation_c99="guessing no";; + hpux*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on IRIX >= 6.5. + irix6.5) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on OSF/1 >= 5. + osf[3-4]*) gl_cv_func_snprintf_truncation_c99="guessing no";; + osf*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on NetBSD >= 3. + netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) + gl_cv_func_snprintf_truncation_c99="guessing no";; + netbsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on BeOS. + beos*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # If we don't know, assume the worst. + *) gl_cv_func_snprintf_truncation_c99="guessing no";; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the return value of the snprintf function is the number +dnl of bytes (excluding the terminating NUL) that would have been produced +dnl if the buffer had been large enough. (ISO C99, POSIX:2001) +dnl For example, this test program fails on IRIX 6.5: +dnl --------------------------------------------------------------------- +dnl #include <stdio.h> +dnl int main() +dnl { +dnl static char buf[8]; +dnl int retval = snprintf (buf, 3, "%d", 12345); +dnl return retval >= 0 && retval < 3; +dnl } +dnl --------------------------------------------------------------------- +dnl Result is gl_cv_func_snprintf_retval_c99. + +AC_DEFUN([gl_SNPRINTF_RETVAL_C99], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether snprintf returns a byte count as in C99], + [gl_cv_func_snprintf_retval_c99], + [ + AC_TRY_RUN([ +#include <stdio.h> +#include <string.h> +static char buf[100]; +int main () +{ + strcpy (buf, "ABCDEF"); + if (snprintf (buf, 3, "%d %d", 4567, 89) != 7) + return 1; + return 0; +}], [gl_cv_func_snprintf_retval_c99=yes], [gl_cv_func_snprintf_retval_c99=no], + [ +changequote(,)dnl + case "$host_os" in + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_snprintf_retval_c99="guessing yes";; + # Guess yes on FreeBSD >= 5. + freebsd[1-4]*) gl_cv_func_snprintf_retval_c99="guessing no";; + freebsd* | kfreebsd*) gl_cv_func_snprintf_retval_c99="guessing yes";; + # Guess yes on MacOS X >= 10.3. + darwin[1-6].*) gl_cv_func_snprintf_retval_c99="guessing no";; + darwin*) gl_cv_func_snprintf_retval_c99="guessing yes";; + # Guess yes on OpenBSD >= 3.9. + openbsd[1-2].* | openbsd3.[0-8] | openbsd3.[0-8].*) + gl_cv_func_snprintf_retval_c99="guessing no";; + openbsd*) gl_cv_func_snprintf_retval_c99="guessing yes";; + # Guess yes on Solaris >= 2.6. + solaris2.[0-5]*) gl_cv_func_snprintf_retval_c99="guessing no";; + solaris*) gl_cv_func_snprintf_retval_c99="guessing yes";; + # Guess yes on AIX >= 4. + aix[1-3]*) gl_cv_func_snprintf_retval_c99="guessing no";; + aix*) gl_cv_func_snprintf_retval_c99="guessing yes";; + # Guess yes on NetBSD >= 3. + netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) + gl_cv_func_snprintf_retval_c99="guessing no";; + netbsd*) gl_cv_func_snprintf_retval_c99="guessing yes";; + # Guess yes on BeOS. + beos*) gl_cv_func_snprintf_retval_c99="guessing yes";; + # If we don't know, assume the worst. + *) gl_cv_func_snprintf_retval_c99="guessing no";; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the snprintf function supports the %n format directive +dnl also in truncated portions of the format string. (ISO C99, POSIX:2001) +dnl Result is gl_cv_func_snprintf_directive_n. + +AC_DEFUN([gl_SNPRINTF_DIRECTIVE_N], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether snprintf fully supports the 'n' directive], + [gl_cv_func_snprintf_directive_n], + [ + AC_TRY_RUN([ +#include <stdio.h> +#include <string.h> +static char fmtstring[10]; +static char buf[100]; +int main () +{ + int count = -1; + /* Copy the format string. Some systems (glibc with _FORTIFY_SOURCE=2) + support %n in format strings in read-only memory but not in writable + memory. */ + strcpy (fmtstring, "%d %n"); + snprintf (buf, 4, fmtstring, 12345, &count, 33, 44, 55); + if (count != 6) + return 1; + return 0; +}], [gl_cv_func_snprintf_directive_n=yes], [gl_cv_func_snprintf_directive_n=no], + [ +changequote(,)dnl + case "$host_os" in + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_snprintf_directive_n="guessing yes";; + # Guess yes on FreeBSD >= 5. + freebsd[1-4]*) gl_cv_func_snprintf_directive_n="guessing no";; + freebsd* | kfreebsd*) gl_cv_func_snprintf_directive_n="guessing yes";; + # Guess yes on MacOS X >= 10.3. + darwin[1-6].*) gl_cv_func_snprintf_directive_n="guessing no";; + darwin*) gl_cv_func_snprintf_directive_n="guessing yes";; + # Guess yes on Solaris >= 2.6. + solaris2.[0-5]*) gl_cv_func_snprintf_directive_n="guessing no";; + solaris*) gl_cv_func_snprintf_directive_n="guessing yes";; + # Guess yes on AIX >= 4. + aix[1-3]*) gl_cv_func_snprintf_directive_n="guessing no";; + aix*) gl_cv_func_snprintf_directive_n="guessing yes";; + # Guess yes on IRIX >= 6.5. + irix6.5) gl_cv_func_snprintf_directive_n="guessing yes";; + # Guess yes on OSF/1 >= 5. + osf[3-4]*) gl_cv_func_snprintf_directive_n="guessing no";; + osf*) gl_cv_func_snprintf_directive_n="guessing yes";; + # Guess yes on NetBSD >= 3. + netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) + gl_cv_func_snprintf_directive_n="guessing no";; + netbsd*) gl_cv_func_snprintf_directive_n="guessing yes";; + # Guess yes on BeOS. + beos*) gl_cv_func_snprintf_directive_n="guessing yes";; + # If we don't know, assume the worst. + *) gl_cv_func_snprintf_directive_n="guessing no";; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the snprintf function, when passed a size = 1, writes any +dnl output without bounds in this case, behaving like sprintf. This is the +dnl case on Linux libc5. +dnl Result is gl_cv_func_snprintf_size1. + +AC_DEFUN([gl_SNPRINTF_SIZE1], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_CACHE_CHECK([whether snprintf respects a size of 1], + [gl_cv_func_snprintf_size1], + [ + AC_TRY_RUN([ +#include <stdio.h> +int main() +{ + static char buf[8] = "DEADBEEF"; + snprintf (buf, 1, "%d", 12345); + return buf[1] != 'E'; +}], + [gl_cv_func_snprintf_size1=yes], + [gl_cv_func_snprintf_size1=no], + [gl_cv_func_snprintf_size1="guessing yes"]) + ]) +]) + +dnl Test whether the vsnprintf function, when passed a zero size, produces no +dnl output. (ISO C99, POSIX:2001) +dnl For example, snprintf nevertheless writes a NUL byte in this case +dnl on OSF/1 5.1: +dnl --------------------------------------------------------------------- +dnl #include <stdio.h> +dnl int main() +dnl { +dnl static char buf[8] = "DEADBEEF"; +dnl snprintf (buf, 0, "%d", 12345); +dnl return buf[0] != 'D'; +dnl } +dnl --------------------------------------------------------------------- +dnl And vsnprintf writes any output without bounds in this case, behaving like +dnl vsprintf, on HP-UX 11 and OSF/1 5.1: +dnl --------------------------------------------------------------------- +dnl #include <stdarg.h> +dnl #include <stdio.h> +dnl static int my_snprintf (char *buf, int size, const char *format, ...) +dnl { +dnl va_list args; +dnl int ret; +dnl va_start (args, format); +dnl ret = vsnprintf (buf, size, format, args); +dnl va_end (args); +dnl return ret; +dnl } +dnl int main() +dnl { +dnl static char buf[8] = "DEADBEEF"; +dnl my_snprintf (buf, 0, "%d", 12345); +dnl return buf[0] != 'D'; +dnl } +dnl --------------------------------------------------------------------- +dnl Result is gl_cv_func_vsnprintf_zerosize_c99. + +AC_DEFUN([gl_VSNPRINTF_ZEROSIZE_C99], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether vsnprintf respects a zero size as in C99], + [gl_cv_func_vsnprintf_zerosize_c99], + [ + AC_TRY_RUN([ +#include <stdarg.h> +#include <stdio.h> +static int my_snprintf (char *buf, int size, const char *format, ...) +{ + va_list args; + int ret; + va_start (args, format); + ret = vsnprintf (buf, size, format, args); + va_end (args); + return ret; +} +int main() +{ + static char buf[8] = "DEADBEEF"; + my_snprintf (buf, 0, "%d", 12345); + return buf[0] != 'D'; +}], + [gl_cv_func_vsnprintf_zerosize_c99=yes], + [gl_cv_func_vsnprintf_zerosize_c99=no], + [ +changequote(,)dnl + case "$host_os" in + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on FreeBSD >= 5. + freebsd[1-4]*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; + freebsd* | kfreebsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on MacOS X >= 10.3. + darwin[1-6].*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; + darwin*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on Cygwin. + cygwin*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on Solaris >= 2.6. + solaris2.[0-5]*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; + solaris*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on AIX >= 4. + aix[1-3]*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; + aix*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on IRIX >= 6.5. + irix6.5) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on NetBSD >= 3. + netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) + gl_cv_func_vsnprintf_zerosize_c99="guessing no";; + netbsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on BeOS. + beos*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on mingw. + mingw* | pw*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # If we don't know, assume the worst. + *) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl The results of these tests on various platforms are: +dnl +dnl 1 = gl_PRINTF_SIZES_C99 +dnl 2 = gl_PRINTF_LONG_DOUBLE +dnl 3 = gl_PRINTF_INFINITE +dnl 4 = gl_PRINTF_INFINITE_LONG_DOUBLE +dnl 5 = gl_PRINTF_DIRECTIVE_A +dnl 6 = gl_PRINTF_DIRECTIVE_F +dnl 7 = gl_PRINTF_DIRECTIVE_N +dnl 8 = gl_PRINTF_POSITIONS +dnl 9 = gl_PRINTF_FLAG_GROUPING +dnl 10 = gl_PRINTF_FLAG_LEFTADJUST +dnl 11 = gl_PRINTF_FLAG_ZERO +dnl 12 = gl_PRINTF_PRECISION +dnl 13 = gl_PRINTF_ENOMEM +dnl 14 = gl_SNPRINTF_PRESENCE +dnl 15 = gl_SNPRINTF_TRUNCATION_C99 +dnl 16 = gl_SNPRINTF_RETVAL_C99 +dnl 17 = gl_SNPRINTF_DIRECTIVE_N +dnl 18 = gl_SNPRINTF_SIZE1 +dnl 19 = gl_VSNPRINTF_ZEROSIZE_C99 +dnl +dnl 1 = checking whether printf supports size specifiers as in C99... +dnl 2 = checking whether printf supports 'long double' arguments... +dnl 3 = checking whether printf supports infinite 'double' arguments... +dnl 4 = checking whether printf supports infinite 'long double' arguments... +dnl 5 = checking whether printf supports the 'a' and 'A' directives... +dnl 6 = checking whether printf supports the 'F' directive... +dnl 7 = checking whether printf supports the 'n' directive... +dnl 8 = checking whether printf supports POSIX/XSI format strings with positions... +dnl 9 = checking whether printf supports the grouping flag... +dnl 10 = checking whether printf supports the left-adjust flag correctly... +dnl 11 = checking whether printf supports the zero flag correctly... +dnl 12 = checking whether printf supports large precisions... +dnl 13 = checking whether printf survives out-of-memory conditions... +dnl 14 = checking for snprintf... +dnl 15 = checking whether snprintf truncates the result as in C99... +dnl 16 = checking whether snprintf returns a byte count as in C99... +dnl 17 = checking whether snprintf fully supports the 'n' directive... +dnl 18 = checking whether snprintf respects a size of 1... +dnl 19 = checking whether vsnprintf respects a zero size as in C99... +dnl +dnl . = yes, # = no. +dnl +dnl 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 +dnl glibc 2.5 . . . . . . . . . . . . . . . . . . . +dnl glibc 2.3.6 . . . . # . . . . . . . . . . . . . . +dnl FreeBSD 5.4, 6.1 . . . . # . . . . . # . # . . . . . . +dnl MacOS X 10.3.9 . . . . # . . . . . # . # . . . . . . +dnl OpenBSD 3.9, 4.0 . . # # # # . . # . # . # . . . . . . +dnl Cygwin 2007 (= Cygwin 1.5.24) . . . . # # . . . ? # ? ? . . . . . . +dnl Cygwin 2006 (= Cygwin 1.5.19) # . . . # # . . # ? # ? ? . . . . . . +dnl Solaris 10 . . # # # . . . . . # . . . . . . . . +dnl Solaris 2.6 ... 9 # . # # # # . . . . # . . . . . . . . +dnl Solaris 2.5.1 # . # # # # . . . . # . . # # # # # # +dnl AIX 5.2 . . # # # . . . . . # . . . . . . . . +dnl AIX 4.3.2, 5.1 # . # # # # . . . . # . . . . . . . . +dnl HP-UX 11.31 . . . . # . . . . . # . . . . # # . . +dnl HP-UX 11.{00,11,23} # . . . # # . . . . # . . . . # # . # +dnl HP-UX 10.20 # . . . # # . . . # # . . . . # # ? # +dnl IRIX 6.5 # . # # # # . . . . # . . . . # . . . +dnl OSF/1 5.1 # . # # # # . . . . # . . . . # . . # +dnl OSF/1 4.0d # . # # # # . . . . # . . # # # # # # +dnl NetBSD 4.0 . ? ? ? ? ? . . ? ? ? ? ? . . . ? ? ? +dnl NetBSD 3.0 . . . . # # . # # ? # . # . . . . . . +dnl BeOS # # . # # # . # . ? . # ? . . . . . . +dnl mingw # # # # # # . # # . # # ? . # # # . . diff --git a/gl/m4/realloc.m4 b/gl/m4/realloc.m4 new file mode 100644 index 0000000000..f9fd935dbb --- /dev/null +++ b/gl/m4/realloc.m4 @@ -0,0 +1,23 @@ +# realloc.m4 serial 8 +dnl Copyright (C) 2007 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# gl_FUNC_REALLOC_POSIX +# --------------------- +# Test whether 'realloc' is POSIX compliant (sets errno to ENOMEM when it +# fails), and replace realloc if it is not. +AC_DEFUN([gl_FUNC_REALLOC_POSIX], +[ + AC_REQUIRE([gl_CHECK_MALLOC_POSIX]) + if test $gl_cv_func_malloc_posix = yes; then + HAVE_REALLOC_POSIX=1 + AC_DEFINE([HAVE_REALLOC_POSIX], 1, + [Define if the 'realloc' function is POSIX compliant.]) + else + AC_LIBOBJ([realloc]) + HAVE_REALLOC_POSIX=0 + fi + AC_SUBST([HAVE_REALLOC_POSIX]) +]) diff --git a/gl/m4/size_max.m4 b/gl/m4/size_max.m4 new file mode 100644 index 0000000000..6cb4868927 --- /dev/null +++ b/gl/m4/size_max.m4 @@ -0,0 +1,68 @@ +# size_max.m4 serial 6 +dnl Copyright (C) 2003, 2005-2006 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +AC_DEFUN([gl_SIZE_MAX], +[ + AC_CHECK_HEADERS(stdint.h) + dnl First test whether the system already has SIZE_MAX. + AC_MSG_CHECKING([for SIZE_MAX]) + AC_CACHE_VAL([gl_cv_size_max], [ + gl_cv_size_max= + AC_EGREP_CPP([Found it], [ +#include <limits.h> +#if HAVE_STDINT_H +#include <stdint.h> +#endif +#ifdef SIZE_MAX +Found it +#endif +], gl_cv_size_max=yes) + if test -z "$gl_cv_size_max"; then + dnl Define it ourselves. Here we assume that the type 'size_t' is not wider + dnl than the type 'unsigned long'. Try hard to find a definition that can + dnl be used in a preprocessor #if, i.e. doesn't contain a cast. + AC_COMPUTE_INT([size_t_bits_minus_1], [sizeof (size_t) * CHAR_BIT - 1], + [#include <stddef.h> +#include <limits.h>], size_t_bits_minus_1=) + AC_COMPUTE_INT([fits_in_uint], [sizeof (size_t) <= sizeof (unsigned int)], + [#include <stddef.h>], fits_in_uint=) + if test -n "$size_t_bits_minus_1" && test -n "$fits_in_uint"; then + if test $fits_in_uint = 1; then + dnl Even though SIZE_MAX fits in an unsigned int, it must be of type + dnl 'unsigned long' if the type 'size_t' is the same as 'unsigned long'. + AC_TRY_COMPILE([#include <stddef.h> + extern size_t foo; + extern unsigned long foo; + ], [], fits_in_uint=0) + fi + dnl We cannot use 'expr' to simplify this expression, because 'expr' + dnl works only with 'long' integers in the host environment, while we + dnl might be cross-compiling from a 32-bit platform to a 64-bit platform. + if test $fits_in_uint = 1; then + gl_cv_size_max="(((1U << $size_t_bits_minus_1) - 1) * 2 + 1)" + else + gl_cv_size_max="(((1UL << $size_t_bits_minus_1) - 1) * 2 + 1)" + fi + else + dnl Shouldn't happen, but who knows... + gl_cv_size_max='((size_t)~(size_t)0)' + fi + fi + ]) + AC_MSG_RESULT([$gl_cv_size_max]) + if test "$gl_cv_size_max" != yes; then + AC_DEFINE_UNQUOTED([SIZE_MAX], [$gl_cv_size_max], + [Define as the maximum value of type 'size_t', if the system doesn't define it.]) + fi +]) + +dnl Autoconf >= 2.61 has AC_COMPUTE_INT built-in. +dnl Remove this when we can assume autoconf >= 2.61. +m4_ifdef([AC_COMPUTE_INT], [], [ + AC_DEFUN([AC_COMPUTE_INT], [_AC_COMPUTE_INT([$2],[$1],[$3],[$4])]) +]) diff --git a/gl/m4/snprintf.m4 b/gl/m4/snprintf.m4 new file mode 100644 index 0000000000..6021786ee1 --- /dev/null +++ b/gl/m4/snprintf.m4 @@ -0,0 +1,40 @@ +# snprintf.m4 serial 5 +dnl Copyright (C) 2002-2004, 2007-2008 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_SNPRINTF], +[ + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) + gl_cv_func_snprintf_usable=no + AC_CHECK_FUNCS([snprintf]) + if test $ac_cv_func_snprintf = yes; then + gl_SNPRINTF_SIZE1 + case "$gl_cv_func_snprintf_size1" in + *yes) + gl_cv_func_snprintf_usable=yes + ;; + esac + fi + if test $gl_cv_func_snprintf_usable = no; then + gl_REPLACE_SNPRINTF + fi + AC_CHECK_DECLS_ONCE([snprintf]) + if test $ac_cv_have_decl_snprintf = no; then + HAVE_DECL_SNPRINTF=0 + fi +]) + +AC_DEFUN([gl_REPLACE_SNPRINTF], +[ + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) + AC_LIBOBJ([snprintf]) + if test $ac_cv_func_snprintf = yes; then + REPLACE_SNPRINTF=1 + fi + gl_PREREQ_SNPRINTF +]) + +# Prerequisites of lib/snprintf.c. +AC_DEFUN([gl_PREREQ_SNPRINTF], [:]) diff --git a/gl/m4/sockpfaf.m4 b/gl/m4/sockpfaf.m4 new file mode 100644 index 0000000000..25d9755c5e --- /dev/null +++ b/gl/m4/sockpfaf.m4 @@ -0,0 +1,58 @@ +# sockpfaf.m4 serial 5 +dnl Copyright (C) 2004, 2006 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Test for some common socket protocol families (PF_INET, PF_INET6, ...) +dnl and some common address families (AF_INET, AF_INET6, ...). +dnl This test assumes that a system supports an address family if and only if +dnl it supports the corresponding protocol family. + +dnl From Bruno Haible. + +AC_DEFUN([gl_SOCKET_FAMILIES], +[ + AC_REQUIRE([gl_HEADER_SYS_SOCKET]) + AC_CHECK_HEADERS_ONCE([netinet/in.h]) + + AC_MSG_CHECKING(for IPv4 sockets) + AC_CACHE_VAL(gl_cv_socket_ipv4, + [AC_TRY_COMPILE([#include <sys/types.h> +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif +#ifdef HAVE_NETINET_IN_H +#include <netinet/in.h> +#endif +#ifdef HAVE_WINSOCK2_H +#include <winsock2.h> +#endif], +[int x = AF_INET; struct in_addr y; struct sockaddr_in z; + if (&x && &y && &z) return 0;], + gl_cv_socket_ipv4=yes, gl_cv_socket_ipv4=no)]) + AC_MSG_RESULT($gl_cv_socket_ipv4) + if test $gl_cv_socket_ipv4 = yes; then + AC_DEFINE(HAVE_IPV4, 1, [Define to 1 if <sys/socket.h> defines AF_INET.]) + fi + + AC_MSG_CHECKING(for IPv6 sockets) + AC_CACHE_VAL(gl_cv_socket_ipv6, + [AC_TRY_COMPILE([#include <sys/types.h> +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif +#ifdef HAVE_NETINET_IN_H +#include <netinet/in.h> +#endif +#ifdef HAVE_WINSOCK2_H +#include <winsock2.h> +#endif], +[int x = AF_INET6; struct in6_addr y; struct sockaddr_in6 z; + if (&x && &y && &z) return 0;], + gl_cv_socket_ipv6=yes, gl_cv_socket_ipv6=no)]) + AC_MSG_RESULT($gl_cv_socket_ipv6) + if test $gl_cv_socket_ipv6 = yes; then + AC_DEFINE(HAVE_IPV6, 1, [Define to 1 if <sys/socket.h> defines AF_INET6.]) + fi +]) diff --git a/gl/m4/stdbool.m4 b/gl/m4/stdbool.m4 new file mode 100644 index 0000000000..2204ecd984 --- /dev/null +++ b/gl/m4/stdbool.m4 @@ -0,0 +1,115 @@ +# Check for stdbool.h that conforms to C99. + +dnl Copyright (C) 2002-2006 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Prepare for substituting <stdbool.h> if it is not supported. + +AC_DEFUN([AM_STDBOOL_H], +[ + AC_REQUIRE([AC_HEADER_STDBOOL]) + + # Define two additional variables used in the Makefile substitution. + + if test "$ac_cv_header_stdbool_h" = yes; then + STDBOOL_H='' + else + STDBOOL_H='stdbool.h' + fi + AC_SUBST([STDBOOL_H]) + + if test "$ac_cv_type__Bool" = yes; then + HAVE__BOOL=1 + else + HAVE__BOOL=0 + fi + AC_SUBST([HAVE__BOOL]) +]) + +# AM_STDBOOL_H will be renamed to gl_STDBOOL_H in the future. +AC_DEFUN([gl_STDBOOL_H], [AM_STDBOOL_H]) + +# This macro is only needed in autoconf <= 2.59. Newer versions of autoconf +# have this macro built-in. + +AC_DEFUN([AC_HEADER_STDBOOL], + [AC_CACHE_CHECK([for stdbool.h that conforms to C99], + [ac_cv_header_stdbool_h], + [AC_TRY_COMPILE( + [ + #include <stdbool.h> + #ifndef bool + "error: bool is not defined" + #endif + #ifndef false + "error: false is not defined" + #endif + #if false + "error: false is not 0" + #endif + #ifndef true + "error: true is not defined" + #endif + #if true != 1 + "error: true is not 1" + #endif + #ifndef __bool_true_false_are_defined + "error: __bool_true_false_are_defined is not defined" + #endif + + struct s { _Bool s: 1; _Bool t; } s; + + char a[true == 1 ? 1 : -1]; + char b[false == 0 ? 1 : -1]; + char c[__bool_true_false_are_defined == 1 ? 1 : -1]; + char d[(bool) 0.5 == true ? 1 : -1]; + bool e = &s; + char f[(_Bool) 0.0 == false ? 1 : -1]; + char g[true]; + char h[sizeof (_Bool)]; + char i[sizeof s.t]; + enum { j = false, k = true, l = false * true, m = true * 256 }; + _Bool n[m]; + char o[sizeof n == m * sizeof n[0] ? 1 : -1]; + char p[-1 - (_Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1]; + #if defined __xlc__ || defined __GNUC__ + /* Catch a bug in IBM AIX xlc compiler version 6.0.0.0 + reported by James Lemley on 2005-10-05; see + http://lists.gnu.org/archive/html/bug-coreutils/2005-10/msg00086.html + This test is not quite right, since xlc is allowed to + reject this program, as the initializer for xlcbug is + not one of the forms that C requires support for. + However, doing the test right would require a run-time + test, and that would make cross-compilation harder. + Let us hope that IBM fixes the xlc bug, and also adds + support for this kind of constant expression. In the + meantime, this test will reject xlc, which is OK, since + our stdbool.h substitute should suffice. We also test + this with GCC, where it should work, to detect more + quickly whether someone messes up the test in the + future. */ + char digs[] = "0123456789"; + int xlcbug = 1 / (&(digs + 5)[-2 + (bool) 1] == &digs[4] ? 1 : -1); + #endif + /* Catch a bug in an HP-UX C compiler. See + http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html + http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html + */ + _Bool q = true; + _Bool *pq = &q; + ], + [ + *pq |= q; + *pq |= ! q; + /* Refer to every declared value, to avoid compiler optimizations. */ + return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !!j + !k + !!l + + !m + !n + !o + !p + !q + !pq); + ], + [ac_cv_header_stdbool_h=yes], + [ac_cv_header_stdbool_h=no])]) + AC_CHECK_TYPES([_Bool]) + if test $ac_cv_header_stdbool_h = yes; then + AC_DEFINE(HAVE_STDBOOL_H, 1, [Define to 1 if stdbool.h conforms to C99.]) + fi]) diff --git a/gl/m4/stdint.m4 b/gl/m4/stdint.m4 new file mode 100644 index 0000000000..b255692567 --- /dev/null +++ b/gl/m4/stdint.m4 @@ -0,0 +1,395 @@ +# stdint.m4 serial 31 +dnl Copyright (C) 2001-2008 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Paul Eggert and Bruno Haible. +dnl Test whether <stdint.h> is supported or must be substituted. + +AC_DEFUN([gl_STDINT_H], +[ + AC_PREREQ(2.59)dnl + + dnl Check for long long int and unsigned long long int. + AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) + if test $ac_cv_type_long_long_int = yes; then + HAVE_LONG_LONG_INT=1 + else + HAVE_LONG_LONG_INT=0 + fi + AC_SUBST([HAVE_LONG_LONG_INT]) + AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT]) + if test $ac_cv_type_unsigned_long_long_int = yes; then + HAVE_UNSIGNED_LONG_LONG_INT=1 + else + HAVE_UNSIGNED_LONG_LONG_INT=0 + fi + AC_SUBST([HAVE_UNSIGNED_LONG_LONG_INT]) + + dnl Check for <inttypes.h>. + dnl AC_INCLUDES_DEFAULT defines $ac_cv_header_inttypes_h. + if test $ac_cv_header_inttypes_h = yes; then + HAVE_INTTYPES_H=1 + else + HAVE_INTTYPES_H=0 + fi + AC_SUBST([HAVE_INTTYPES_H]) + + dnl Check for <sys/types.h>. + dnl AC_INCLUDES_DEFAULT defines $ac_cv_header_sys_types_h. + if test $ac_cv_header_sys_types_h = yes; then + HAVE_SYS_TYPES_H=1 + else + HAVE_SYS_TYPES_H=0 + fi + AC_SUBST([HAVE_SYS_TYPES_H]) + + gl_CHECK_NEXT_HEADERS([stdint.h]) + if test $ac_cv_header_stdint_h = yes; then + HAVE_STDINT_H=1 + else + HAVE_STDINT_H=0 + fi + AC_SUBST([HAVE_STDINT_H]) + + dnl Now see whether we need a substitute <stdint.h>. + if test $ac_cv_header_stdint_h = yes; then + AC_CACHE_CHECK([whether stdint.h conforms to C99], + [gl_cv_header_working_stdint_h], + [gl_cv_header_working_stdint_h=no + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ +#define __STDC_LIMIT_MACROS 1 /* to make it work also in C++ mode */ +#define __STDC_CONSTANT_MACROS 1 /* to make it work also in C++ mode */ +#define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */ +#include <stdint.h> +/* Dragonfly defines WCHAR_MIN, WCHAR_MAX only in <wchar.h>. */ +#if !(defined WCHAR_MIN && defined WCHAR_MAX) +#error "WCHAR_MIN, WCHAR_MAX not defined in <stdint.h>" +#endif +] +gl_STDINT_INCLUDES +[ +#ifdef INT8_MAX +int8_t a1 = INT8_MAX; +int8_t a1min = INT8_MIN; +#endif +#ifdef INT16_MAX +int16_t a2 = INT16_MAX; +int16_t a2min = INT16_MIN; +#endif +#ifdef INT32_MAX +int32_t a3 = INT32_MAX; +int32_t a3min = INT32_MIN; +#endif +#ifdef INT64_MAX +int64_t a4 = INT64_MAX; +int64_t a4min = INT64_MIN; +#endif +#ifdef UINT8_MAX +uint8_t b1 = UINT8_MAX; +#else +typedef int b1[(unsigned char) -1 != 255 ? 1 : -1]; +#endif +#ifdef UINT16_MAX +uint16_t b2 = UINT16_MAX; +#endif +#ifdef UINT32_MAX +uint32_t b3 = UINT32_MAX; +#endif +#ifdef UINT64_MAX +uint64_t b4 = UINT64_MAX; +#endif +int_least8_t c1 = INT8_C (0x7f); +int_least8_t c1max = INT_LEAST8_MAX; +int_least8_t c1min = INT_LEAST8_MIN; +int_least16_t c2 = INT16_C (0x7fff); +int_least16_t c2max = INT_LEAST16_MAX; +int_least16_t c2min = INT_LEAST16_MIN; +int_least32_t c3 = INT32_C (0x7fffffff); +int_least32_t c3max = INT_LEAST32_MAX; +int_least32_t c3min = INT_LEAST32_MIN; +int_least64_t c4 = INT64_C (0x7fffffffffffffff); +int_least64_t c4max = INT_LEAST64_MAX; +int_least64_t c4min = INT_LEAST64_MIN; +uint_least8_t d1 = UINT8_C (0xff); +uint_least8_t d1max = UINT_LEAST8_MAX; +uint_least16_t d2 = UINT16_C (0xffff); +uint_least16_t d2max = UINT_LEAST16_MAX; +uint_least32_t d3 = UINT32_C (0xffffffff); +uint_least32_t d3max = UINT_LEAST32_MAX; +uint_least64_t d4 = UINT64_C (0xffffffffffffffff); +uint_least64_t d4max = UINT_LEAST64_MAX; +int_fast8_t e1 = INT_FAST8_MAX; +int_fast8_t e1min = INT_FAST8_MIN; +int_fast16_t e2 = INT_FAST16_MAX; +int_fast16_t e2min = INT_FAST16_MIN; +int_fast32_t e3 = INT_FAST32_MAX; +int_fast32_t e3min = INT_FAST32_MIN; +int_fast64_t e4 = INT_FAST64_MAX; +int_fast64_t e4min = INT_FAST64_MIN; +uint_fast8_t f1 = UINT_FAST8_MAX; +uint_fast16_t f2 = UINT_FAST16_MAX; +uint_fast32_t f3 = UINT_FAST32_MAX; +uint_fast64_t f4 = UINT_FAST64_MAX; +#ifdef INTPTR_MAX +intptr_t g = INTPTR_MAX; +intptr_t gmin = INTPTR_MIN; +#endif +#ifdef UINTPTR_MAX +uintptr_t h = UINTPTR_MAX; +#endif +intmax_t i = INTMAX_MAX; +uintmax_t j = UINTMAX_MAX; + +#include <limits.h> /* for CHAR_BIT */ +#define TYPE_MINIMUM(t) \ + ((t) ((t) 0 < (t) -1 ? (t) 0 : ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))) +#define TYPE_MAXIMUM(t) \ + ((t) ((t) 0 < (t) -1 ? (t) -1 : ~ (~ (t) 0 << (sizeof (t) * CHAR_BIT - 1)))) +struct s { + int check_PTRDIFF: + PTRDIFF_MIN == TYPE_MINIMUM (ptrdiff_t) + && PTRDIFF_MAX == TYPE_MAXIMUM (ptrdiff_t) + ? 1 : -1; + /* Detect bug in FreeBSD 6.0 / ia64. */ + int check_SIG_ATOMIC: + SIG_ATOMIC_MIN == TYPE_MINIMUM (sig_atomic_t) + && SIG_ATOMIC_MAX == TYPE_MAXIMUM (sig_atomic_t) + ? 1 : -1; + int check_SIZE: SIZE_MAX == TYPE_MAXIMUM (size_t) ? 1 : -1; + int check_WCHAR: + WCHAR_MIN == TYPE_MINIMUM (wchar_t) + && WCHAR_MAX == TYPE_MAXIMUM (wchar_t) + ? 1 : -1; + /* Detect bug in mingw. */ + int check_WINT: + WINT_MIN == TYPE_MINIMUM (wint_t) + && WINT_MAX == TYPE_MAXIMUM (wint_t) + ? 1 : -1; + + /* Detect bugs in glibc 2.4 and Solaris 10 stdint.h, among others. */ + int check_UINT8_C: + (-1 < UINT8_C (0)) == (-1 < (uint_least8_t) 0) ? 1 : -1; + int check_UINT16_C: + (-1 < UINT16_C (0)) == (-1 < (uint_least16_t) 0) ? 1 : -1; + + /* Detect bugs in OpenBSD 3.9 stdint.h. */ +#ifdef UINT8_MAX + int check_uint8: (uint8_t) -1 == UINT8_MAX ? 1 : -1; +#endif +#ifdef UINT16_MAX + int check_uint16: (uint16_t) -1 == UINT16_MAX ? 1 : -1; +#endif +#ifdef UINT32_MAX + int check_uint32: (uint32_t) -1 == UINT32_MAX ? 1 : -1; +#endif +#ifdef UINT64_MAX + int check_uint64: (uint64_t) -1 == UINT64_MAX ? 1 : -1; +#endif + int check_uint_least8: (uint_least8_t) -1 == UINT_LEAST8_MAX ? 1 : -1; + int check_uint_least16: (uint_least16_t) -1 == UINT_LEAST16_MAX ? 1 : -1; + int check_uint_least32: (uint_least32_t) -1 == UINT_LEAST32_MAX ? 1 : -1; + int check_uint_least64: (uint_least64_t) -1 == UINT_LEAST64_MAX ? 1 : -1; + int check_uint_fast8: (uint_fast8_t) -1 == UINT_FAST8_MAX ? 1 : -1; + int check_uint_fast16: (uint_fast16_t) -1 == UINT_FAST16_MAX ? 1 : -1; + int check_uint_fast32: (uint_fast32_t) -1 == UINT_FAST32_MAX ? 1 : -1; + int check_uint_fast64: (uint_fast64_t) -1 == UINT_FAST64_MAX ? 1 : -1; + int check_uintptr: (uintptr_t) -1 == UINTPTR_MAX ? 1 : -1; + int check_uintmax: (uintmax_t) -1 == UINTMAX_MAX ? 1 : -1; + int check_size: (size_t) -1 == SIZE_MAX ? 1 : -1; +}; + ]])], + [gl_cv_header_working_stdint_h=yes])]) + fi + if test "$gl_cv_header_working_stdint_h" = yes; then + STDINT_H= + else + dnl Check for <sys/inttypes.h>, and for + dnl <sys/bitypes.h> (used in Linux libc4 >= 4.6.7 and libc5). + AC_CHECK_HEADERS([sys/inttypes.h sys/bitypes.h]) + if test $ac_cv_header_sys_inttypes_h = yes; then + HAVE_SYS_INTTYPES_H=1 + else + HAVE_SYS_INTTYPES_H=0 + fi + AC_SUBST([HAVE_SYS_INTTYPES_H]) + if test $ac_cv_header_sys_bitypes_h = yes; then + HAVE_SYS_BITYPES_H=1 + else + HAVE_SYS_BITYPES_H=0 + fi + AC_SUBST([HAVE_SYS_BITYPES_H]) + + dnl Check for <wchar.h> (missing in Linux uClibc when built without wide + dnl character support). + AC_CHECK_HEADERS_ONCE([wchar.h]) + + gl_STDINT_TYPE_PROPERTIES + STDINT_H=stdint.h + fi + AC_SUBST(STDINT_H) +]) + +dnl gl_STDINT_BITSIZEOF(TYPES, INCLUDES) +dnl Determine the size of each of the given types in bits. +AC_DEFUN([gl_STDINT_BITSIZEOF], +[ + dnl Use a shell loop, to avoid bloating configure, and + dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into + dnl config.h.in, + dnl - extra AC_SUBST calls, so that the right substitutions are made. + m4_foreach_w([gltype], [$1], + [AH_TEMPLATE([BITSIZEOF_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]), + [Define to the number of bits in type ']gltype['.])]) + for gltype in $1 ; do + AC_CACHE_CHECK([for bit size of $gltype], [gl_cv_bitsizeof_${gltype}], + [AC_COMPUTE_INT([result], [sizeof ($gltype) * CHAR_BIT], + [$2 +#include <limits.h>], [result=unknown]) + eval gl_cv_bitsizeof_${gltype}=\$result + ]) + eval result=\$gl_cv_bitsizeof_${gltype} + if test $result = unknown; then + dnl Use a nonempty default, because some compilers, such as IRIX 5 cc, + dnl do a syntax check even on unused #if conditions and give an error + dnl on valid C code like this: + dnl #if 0 + dnl # if > 32 + dnl # endif + dnl #endif + result=0 + fi + GLTYPE=`echo "$gltype" | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'` + AC_DEFINE_UNQUOTED([BITSIZEOF_${GLTYPE}], [$result]) + eval BITSIZEOF_${GLTYPE}=\$result + done + m4_foreach_w([gltype], [$1], + [AC_SUBST([BITSIZEOF_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))]) +]) + +dnl gl_CHECK_TYPES_SIGNED(TYPES, INCLUDES) +dnl Determine the signedness of each of the given types. +dnl Define HAVE_SIGNED_TYPE if type is signed. +AC_DEFUN([gl_CHECK_TYPES_SIGNED], +[ + dnl Use a shell loop, to avoid bloating configure, and + dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into + dnl config.h.in, + dnl - extra AC_SUBST calls, so that the right substitutions are made. + m4_foreach_w([gltype], [$1], + [AH_TEMPLATE([HAVE_SIGNED_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]), + [Define to 1 if ']gltype[' is a signed integer type.])]) + for gltype in $1 ; do + AC_CACHE_CHECK([whether $gltype is signed], [gl_cv_type_${gltype}_signed], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([$2[ + int verify[2 * (($gltype) -1 < ($gltype) 0) - 1];]])], + result=yes, result=no) + eval gl_cv_type_${gltype}_signed=\$result + ]) + eval result=\$gl_cv_type_${gltype}_signed + GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'` + if test "$result" = yes; then + AC_DEFINE_UNQUOTED([HAVE_SIGNED_${GLTYPE}], 1) + eval HAVE_SIGNED_${GLTYPE}=1 + else + eval HAVE_SIGNED_${GLTYPE}=0 + fi + done + m4_foreach_w([gltype], [$1], + [AC_SUBST([HAVE_SIGNED_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))]) +]) + +dnl gl_INTEGER_TYPE_SUFFIX(TYPES, INCLUDES) +dnl Determine the suffix to use for integer constants of the given types. +dnl Define t_SUFFIX for each such type. +AC_DEFUN([gl_INTEGER_TYPE_SUFFIX], +[ + dnl Use a shell loop, to avoid bloating configure, and + dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into + dnl config.h.in, + dnl - extra AC_SUBST calls, so that the right substitutions are made. + m4_foreach_w([gltype], [$1], + [AH_TEMPLATE(translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX], + [Define to l, ll, u, ul, ull, etc., as suitable for + constants of type ']gltype['.])]) + for gltype in $1 ; do + AC_CACHE_CHECK([for $gltype integer literal suffix], + [gl_cv_type_${gltype}_suffix], + [eval gl_cv_type_${gltype}_suffix=no + eval result=\$gl_cv_type_${gltype}_signed + if test "$result" = yes; then + glsufu= + else + glsufu=u + fi + for glsuf in "$glsufu" ${glsufu}l ${glsufu}ll ${glsufu}i64; do + case $glsuf in + '') gltype1='int';; + l) gltype1='long int';; + ll) gltype1='long long int';; + i64) gltype1='__int64';; + u) gltype1='unsigned int';; + ul) gltype1='unsigned long int';; + ull) gltype1='unsigned long long int';; + ui64)gltype1='unsigned __int64';; + esac + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([$2[ + extern $gltype foo; + extern $gltype1 foo;]])], + [eval gl_cv_type_${gltype}_suffix=\$glsuf]) + eval result=\$gl_cv_type_${gltype}_suffix + test "$result" != no && break + done]) + GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'` + eval result=\$gl_cv_type_${gltype}_suffix + test "$result" = no && result= + eval ${GLTYPE}_SUFFIX=\$result + AC_DEFINE_UNQUOTED([${GLTYPE}_SUFFIX], $result) + done + m4_foreach_w([gltype], [$1], + [AC_SUBST(translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX])]) +]) + +dnl gl_STDINT_INCLUDES +AC_DEFUN([gl_STDINT_INCLUDES], +[[ + /* BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be + included before <wchar.h>. */ + #include <stddef.h> + #include <signal.h> + #if HAVE_WCHAR_H + # include <stdio.h> + # include <time.h> + # include <wchar.h> + #endif +]]) + +dnl gl_STDINT_TYPE_PROPERTIES +dnl Compute HAVE_SIGNED_t, BITSIZEOF_t and t_SUFFIX, for all the types t +dnl of interest to stdint.in.h. +AC_DEFUN([gl_STDINT_TYPE_PROPERTIES], +[ + gl_STDINT_BITSIZEOF([ptrdiff_t sig_atomic_t size_t wchar_t wint_t], + [gl_STDINT_INCLUDES]) + gl_CHECK_TYPES_SIGNED([sig_atomic_t wchar_t wint_t], + [gl_STDINT_INCLUDES]) + gl_cv_type_ptrdiff_t_signed=yes + gl_cv_type_size_t_signed=no + gl_INTEGER_TYPE_SUFFIX([ptrdiff_t sig_atomic_t size_t wchar_t wint_t], + [gl_STDINT_INCLUDES]) +]) + +dnl Autoconf >= 2.61 has AC_COMPUTE_INT built-in. +dnl Remove this when we can assume autoconf >= 2.61. +m4_ifdef([AC_COMPUTE_INT], [], [ + AC_DEFUN([AC_COMPUTE_INT], [_AC_COMPUTE_INT([$2],[$1],[$3],[$4])]) +]) + +# Hey Emacs! +# Local Variables: +# indent-tabs-mode: nil +# End: diff --git a/gl/m4/stdint_h.m4 b/gl/m4/stdint_h.m4 new file mode 100644 index 0000000000..db9a8ac4c2 --- /dev/null +++ b/gl/m4/stdint_h.m4 @@ -0,0 +1,26 @@ +# stdint_h.m4 serial 6 +dnl Copyright (C) 1997-2004, 2006 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Paul Eggert. + +# Define HAVE_STDINT_H_WITH_UINTMAX if <stdint.h> exists, +# doesn't clash with <sys/types.h>, and declares uintmax_t. + +AC_DEFUN([gl_AC_HEADER_STDINT_H], +[ + AC_CACHE_CHECK([for stdint.h], gl_cv_header_stdint_h, + [AC_TRY_COMPILE( + [#include <sys/types.h> +#include <stdint.h>], + [uintmax_t i = (uintmax_t) -1; return !i;], + gl_cv_header_stdint_h=yes, + gl_cv_header_stdint_h=no)]) + if test $gl_cv_header_stdint_h = yes; then + AC_DEFINE_UNQUOTED(HAVE_STDINT_H_WITH_UINTMAX, 1, + [Define if <stdint.h> exists, doesn't clash with <sys/types.h>, + and declares uintmax_t. ]) + fi +]) diff --git a/gl/m4/stdio_h.m4 b/gl/m4/stdio_h.m4 new file mode 100644 index 0000000000..60b4bd791a --- /dev/null +++ b/gl/m4/stdio_h.m4 @@ -0,0 +1,127 @@ +# stdio_h.m4 serial 14 +dnl Copyright (C) 2007-2008 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_STDIO_H], +[ + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) + gl_CHECK_NEXT_HEADERS([stdio.h]) + dnl No need to create extra modules for these functions. Everyone who uses + dnl <stdio.h> likely needs them. + GNULIB_FPRINTF=1 + GNULIB_PRINTF=1 + GNULIB_VFPRINTF=1 + GNULIB_VPRINTF=1 + GNULIB_FPUTC=1 + GNULIB_PUTC=1 + GNULIB_PUTCHAR=1 + GNULIB_FPUTS=1 + GNULIB_PUTS=1 + GNULIB_FWRITE=1 + dnl This ifdef is just an optimization, to avoid performing a configure + dnl check whose result is not used. It does not make the test of + dnl GNULIB_STDIO_H_SIGPIPE or GNULIB_SIGPIPE redundant. + m4_ifdef([gl_SIGNAL_SIGPIPE], [ + gl_SIGNAL_SIGPIPE + if test $gl_cv_header_signal_h_SIGPIPE != yes; then + REPLACE_STDIO_WRITE_FUNCS=1 + AC_LIBOBJ([stdio-write]) + fi + ]) +]) + +AC_DEFUN([gl_STDIO_MODULE_INDICATOR], +[ + dnl Use AC_REQUIRE here, so that the default settings are expanded once only. + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) + GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1 +]) + +AC_DEFUN([gl_STDIO_H_DEFAULTS], +[ + GNULIB_FPRINTF=0; AC_SUBST([GNULIB_FPRINTF]) + GNULIB_FPRINTF_POSIX=0; AC_SUBST([GNULIB_FPRINTF_POSIX]) + GNULIB_PRINTF=0; AC_SUBST([GNULIB_PRINTF]) + GNULIB_PRINTF_POSIX=0; AC_SUBST([GNULIB_PRINTF_POSIX]) + GNULIB_SNPRINTF=0; AC_SUBST([GNULIB_SNPRINTF]) + GNULIB_SPRINTF_POSIX=0; AC_SUBST([GNULIB_SPRINTF_POSIX]) + GNULIB_VFPRINTF=0; AC_SUBST([GNULIB_VFPRINTF]) + GNULIB_VFPRINTF_POSIX=0; AC_SUBST([GNULIB_VFPRINTF_POSIX]) + GNULIB_VPRINTF=0; AC_SUBST([GNULIB_VPRINTF]) + GNULIB_VPRINTF_POSIX=0; AC_SUBST([GNULIB_VPRINTF_POSIX]) + GNULIB_VSNPRINTF=0; AC_SUBST([GNULIB_VSNPRINTF]) + GNULIB_VSPRINTF_POSIX=0; AC_SUBST([GNULIB_VSPRINTF_POSIX]) + GNULIB_VASPRINTF=0; AC_SUBST([GNULIB_VASPRINTF]) + GNULIB_OBSTACK_PRINTF=0; AC_SUBST([GNULIB_OBSTACK_PRINTF]) + GNULIB_OBSTACK_PRINTF_POSIX=0; AC_SUBST([GNULIB_OBSTACK_PRINTF_POSIX]) + GNULIB_FOPEN=0; AC_SUBST([GNULIB_FOPEN]) + GNULIB_FREOPEN=0; AC_SUBST([GNULIB_FREOPEN]) + GNULIB_FSEEK=0; AC_SUBST([GNULIB_FSEEK]) + GNULIB_FSEEKO=0; AC_SUBST([GNULIB_FSEEKO]) + GNULIB_FTELL=0; AC_SUBST([GNULIB_FTELL]) + GNULIB_FTELLO=0; AC_SUBST([GNULIB_FTELLO]) + GNULIB_FFLUSH=0; AC_SUBST([GNULIB_FFLUSH]) + GNULIB_FCLOSE=0; AC_SUBST([GNULIB_FCLOSE]) + GNULIB_FPUTC=0; AC_SUBST([GNULIB_FPUTC]) + GNULIB_PUTC=0; AC_SUBST([GNULIB_PUTC]) + GNULIB_PUTCHAR=0; AC_SUBST([GNULIB_PUTCHAR]) + GNULIB_FPUTS=0; AC_SUBST([GNULIB_FPUTS]) + GNULIB_PUTS=0; AC_SUBST([GNULIB_PUTS]) + GNULIB_FWRITE=0; AC_SUBST([GNULIB_FWRITE]) + GNULIB_GETDELIM=0; AC_SUBST([GNULIB_GETDELIM]) + GNULIB_GETLINE=0; AC_SUBST([GNULIB_GETLINE]) + GNULIB_PERROR=0; AC_SUBST([GNULIB_PERROR]) + GNULIB_STDIO_H_SIGPIPE=0; AC_SUBST([GNULIB_STDIO_H_SIGPIPE]) + dnl Assume proper GNU behavior unless another module says otherwise. + REPLACE_STDIO_WRITE_FUNCS=0; AC_SUBST([REPLACE_STDIO_WRITE_FUNCS]) + REPLACE_FPRINTF=0; AC_SUBST([REPLACE_FPRINTF]) + REPLACE_VFPRINTF=0; AC_SUBST([REPLACE_VFPRINTF]) + REPLACE_PRINTF=0; AC_SUBST([REPLACE_PRINTF]) + REPLACE_VPRINTF=0; AC_SUBST([REPLACE_VPRINTF]) + REPLACE_SNPRINTF=0; AC_SUBST([REPLACE_SNPRINTF]) + HAVE_DECL_SNPRINTF=1; AC_SUBST([HAVE_DECL_SNPRINTF]) + REPLACE_VSNPRINTF=0; AC_SUBST([REPLACE_VSNPRINTF]) + HAVE_DECL_VSNPRINTF=1; AC_SUBST([HAVE_DECL_VSNPRINTF]) + REPLACE_SPRINTF=0; AC_SUBST([REPLACE_SPRINTF]) + REPLACE_VSPRINTF=0; AC_SUBST([REPLACE_VSPRINTF]) + HAVE_VASPRINTF=1; AC_SUBST([HAVE_VASPRINTF]) + REPLACE_VASPRINTF=0; AC_SUBST([REPLACE_VASPRINTF]) + HAVE_DECL_OBSTACK_PRINTF=1; AC_SUBST([HAVE_DECL_OBSTACK_PRINTF]) + REPLACE_OBSTACK_PRINTF=0; AC_SUBST([REPLACE_OBSTACK_PRINTF]) + REPLACE_FOPEN=0; AC_SUBST([REPLACE_FOPEN]) + REPLACE_FREOPEN=0; AC_SUBST([REPLACE_FREOPEN]) + HAVE_FSEEKO=1; AC_SUBST([HAVE_FSEEKO]) + REPLACE_FSEEKO=0; AC_SUBST([REPLACE_FSEEKO]) + REPLACE_FSEEK=0; AC_SUBST([REPLACE_FSEEK]) + HAVE_FTELLO=1; AC_SUBST([HAVE_FTELLO]) + REPLACE_FTELLO=0; AC_SUBST([REPLACE_FTELLO]) + REPLACE_FTELL=0; AC_SUBST([REPLACE_FTELL]) + REPLACE_FFLUSH=0; AC_SUBST([REPLACE_FFLUSH]) + REPLACE_FCLOSE=0; AC_SUBST([REPLACE_FCLOSE]) + HAVE_DECL_GETDELIM=1; AC_SUBST([HAVE_DECL_GETDELIM]) + HAVE_DECL_GETLINE=1; AC_SUBST([HAVE_DECL_GETLINE]) + REPLACE_GETLINE=0; AC_SUBST([REPLACE_GETLINE]) + REPLACE_PERROR=0; AC_SUBST([REPLACE_PERROR]) +]) + +dnl Code shared by fseeko and ftello. Determine if large files are supported, +dnl but stdin does not start as a large file by default. +AC_DEFUN([gl_STDIN_LARGE_OFFSET], + [ + AC_CACHE_CHECK([whether stdin defaults to large file offsets], + [gl_cv_var_stdin_large_offset], + [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h>]], +[[#if defined __SL64 && defined __SCLE /* cygwin */ + /* Cygwin 1.5.24 and earlier fail to put stdin in 64-bit mode, making + fseeko/ftello needlessly fail. This bug was fixed in 1.5.25, and + it is easier to do a version check than building a runtime test. */ +# include <cygwin/version.h> +# if CYGWIN_VERSION_DLL_COMBINED < CYGWIN_VERSION_DLL_MAKE_COMBINED (1005, 25) + choke me +# endif +#endif]])], + [gl_cv_var_stdin_large_offset=yes], + [gl_cv_var_stdin_large_offset=no])]) +]) diff --git a/gl/m4/stdlib_h.m4 b/gl/m4/stdlib_h.m4 new file mode 100644 index 0000000000..582db13dff --- /dev/null +++ b/gl/m4/stdlib_h.m4 @@ -0,0 +1,62 @@ +# stdlib_h.m4 serial 13 +dnl Copyright (C) 2007, 2008 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_STDLIB_H], +[ + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + gl_CHECK_NEXT_HEADERS([stdlib.h]) + AC_CHECK_TYPES([struct random_data], + [], [HAVE_STRUCT_RANDOM_DATA=0], + [[#include <stdlib.h>]]) +]) + +AC_DEFUN([gl_STDLIB_MODULE_INDICATOR], +[ + dnl Use AC_REQUIRE here, so that the default settings are expanded once only. + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1 +]) + +AC_DEFUN([gl_STDLIB_H_DEFAULTS], +[ + GNULIB_MALLOC_POSIX=0; AC_SUBST([GNULIB_MALLOC_POSIX]) + GNULIB_REALLOC_POSIX=0; AC_SUBST([GNULIB_REALLOC_POSIX]) + GNULIB_CALLOC_POSIX=0; AC_SUBST([GNULIB_CALLOC_POSIX]) + GNULIB_ATOLL=0; AC_SUBST([GNULIB_ATOLL]) + GNULIB_GETLOADAVG=0; AC_SUBST([GNULIB_GETLOADAVG]) + GNULIB_GETSUBOPT=0; AC_SUBST([GNULIB_GETSUBOPT]) + GNULIB_MKDTEMP=0; AC_SUBST([GNULIB_MKDTEMP]) + GNULIB_MKSTEMP=0; AC_SUBST([GNULIB_MKSTEMP]) + GNULIB_PUTENV=0; AC_SUBST([GNULIB_PUTENV]) + GNULIB_RANDOM_R=0; AC_SUBST([GNULIB_RANDOM_R]) + GNULIB_RPMATCH=0; AC_SUBST([GNULIB_RPMATCH]) + GNULIB_SETENV=0; AC_SUBST([GNULIB_SETENV]) + GNULIB_STRTOD=0; AC_SUBST([GNULIB_STRTOD]) + GNULIB_STRTOLL=0; AC_SUBST([GNULIB_STRTOLL]) + GNULIB_STRTOULL=0; AC_SUBST([GNULIB_STRTOULL]) + GNULIB_UNSETENV=0; AC_SUBST([GNULIB_UNSETENV]) + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_ATOLL=1; AC_SUBST([HAVE_ATOLL]) + HAVE_CALLOC_POSIX=1; AC_SUBST([HAVE_CALLOC_POSIX]) + HAVE_GETSUBOPT=1; AC_SUBST([HAVE_GETSUBOPT]) + HAVE_MALLOC_POSIX=1; AC_SUBST([HAVE_MALLOC_POSIX]) + HAVE_MKDTEMP=1; AC_SUBST([HAVE_MKDTEMP]) + HAVE_REALLOC_POSIX=1; AC_SUBST([HAVE_REALLOC_POSIX]) + HAVE_RANDOM_R=1; AC_SUBST([HAVE_RANDOM_R]) + HAVE_RPMATCH=1; AC_SUBST([HAVE_RPMATCH]) + HAVE_SETENV=1; AC_SUBST([HAVE_SETENV]) + HAVE_STRTOD=1; AC_SUBST([HAVE_STRTOD]) + HAVE_STRTOLL=1; AC_SUBST([HAVE_STRTOLL]) + HAVE_STRTOULL=1; AC_SUBST([HAVE_STRTOULL]) + HAVE_STRUCT_RANDOM_DATA=1; AC_SUBST([HAVE_STRUCT_RANDOM_DATA]) + HAVE_SYS_LOADAVG_H=0; AC_SUBST([HAVE_SYS_LOADAVG_H]) + HAVE_UNSETENV=1; AC_SUBST([HAVE_UNSETENV]) + HAVE_DECL_GETLOADAVG=1; AC_SUBST([HAVE_DECL_GETLOADAVG]) + REPLACE_MKSTEMP=0; AC_SUBST([REPLACE_MKSTEMP]) + REPLACE_PUTENV=0; AC_SUBST([REPLACE_PUTENV]) + REPLACE_STRTOD=0; AC_SUBST([REPLACE_STRTOD]) + VOID_UNSETENV=0; AC_SUBST([VOID_UNSETENV]) +]) diff --git a/gl/m4/string_h.m4 b/gl/m4/string_h.m4 new file mode 100644 index 0000000000..2d5553c374 --- /dev/null +++ b/gl/m4/string_h.m4 @@ -0,0 +1,92 @@ +# Configure a GNU-like replacement for <string.h>. + +# Copyright (C) 2007, 2008 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# serial 6 + +# Written by Paul Eggert. + +AC_DEFUN([gl_HEADER_STRING_H], +[ + dnl Use AC_REQUIRE here, so that the default behavior below is expanded + dnl once only, before all statements that occur in other macros. + AC_REQUIRE([gl_HEADER_STRING_H_BODY]) +]) + +AC_DEFUN([gl_HEADER_STRING_H_BODY], +[ + AC_REQUIRE([AC_C_RESTRICT]) + AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) + gl_CHECK_NEXT_HEADERS([string.h]) +]) + +AC_DEFUN([gl_STRING_MODULE_INDICATOR], +[ + dnl Use AC_REQUIRE here, so that the default settings are expanded once only. + AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) + GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1 +]) + +AC_DEFUN([gl_HEADER_STRING_H_DEFAULTS], +[ + GNULIB_MEMMEM=0; AC_SUBST([GNULIB_MEMMEM]) + GNULIB_MEMPCPY=0; AC_SUBST([GNULIB_MEMPCPY]) + GNULIB_MEMRCHR=0; AC_SUBST([GNULIB_MEMRCHR]) + GNULIB_RAWMEMCHR=0; AC_SUBST([GNULIB_RAWMEMCHR]) + GNULIB_STPCPY=0; AC_SUBST([GNULIB_STPCPY]) + GNULIB_STPNCPY=0; AC_SUBST([GNULIB_STPNCPY]) + GNULIB_STRCHRNUL=0; AC_SUBST([GNULIB_STRCHRNUL]) + GNULIB_STRDUP=0; AC_SUBST([GNULIB_STRDUP]) + GNULIB_STRNDUP=0; AC_SUBST([GNULIB_STRNDUP]) + GNULIB_STRNLEN=0; AC_SUBST([GNULIB_STRNLEN]) + GNULIB_STRPBRK=0; AC_SUBST([GNULIB_STRPBRK]) + GNULIB_STRSEP=0; AC_SUBST([GNULIB_STRSEP]) + GNULIB_STRSTR=0; AC_SUBST([GNULIB_STRSTR]) + GNULIB_STRCASESTR=0; AC_SUBST([GNULIB_STRCASESTR]) + GNULIB_STRTOK_R=0; AC_SUBST([GNULIB_STRTOK_R]) + GNULIB_MBSLEN=0; AC_SUBST([GNULIB_MBSLEN]) + GNULIB_MBSNLEN=0; AC_SUBST([GNULIB_MBSNLEN]) + GNULIB_MBSCHR=0; AC_SUBST([GNULIB_MBSCHR]) + GNULIB_MBSRCHR=0; AC_SUBST([GNULIB_MBSRCHR]) + GNULIB_MBSSTR=0; AC_SUBST([GNULIB_MBSSTR]) + GNULIB_MBSCASECMP=0; AC_SUBST([GNULIB_MBSCASECMP]) + GNULIB_MBSNCASECMP=0; AC_SUBST([GNULIB_MBSNCASECMP]) + GNULIB_MBSPCASECMP=0; AC_SUBST([GNULIB_MBSPCASECMP]) + GNULIB_MBSCASESTR=0; AC_SUBST([GNULIB_MBSCASESTR]) + GNULIB_MBSCSPN=0; AC_SUBST([GNULIB_MBSCSPN]) + GNULIB_MBSPBRK=0; AC_SUBST([GNULIB_MBSPBRK]) + GNULIB_MBSSPN=0; AC_SUBST([GNULIB_MBSSPN]) + GNULIB_MBSSEP=0; AC_SUBST([GNULIB_MBSSEP]) + GNULIB_MBSTOK_R=0; AC_SUBST([GNULIB_MBSTOK_R]) + GNULIB_STRERROR=0; AC_SUBST([GNULIB_STRERROR]) + GNULIB_STRSIGNAL=0; AC_SUBST([GNULIB_STRSIGNAL]) + GNULIB_STRVERSCMP=0; AC_SUBST([GNULIB_STRVERSCMP]) + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_DECL_MEMMEM=1; AC_SUBST([HAVE_DECL_MEMMEM]) + HAVE_MEMPCPY=1; AC_SUBST([HAVE_MEMPCPY]) + HAVE_DECL_MEMRCHR=1; AC_SUBST([HAVE_DECL_MEMRCHR]) + HAVE_RAWMEMCHR=1; AC_SUBST([HAVE_RAWMEMCHR]) + HAVE_STPCPY=1; AC_SUBST([HAVE_STPCPY]) + HAVE_STPNCPY=1; AC_SUBST([HAVE_STPNCPY]) + HAVE_STRCHRNUL=1; AC_SUBST([HAVE_STRCHRNUL]) + HAVE_DECL_STRDUP=1; AC_SUBST([HAVE_DECL_STRDUP]) + HAVE_STRNDUP=1; AC_SUBST([HAVE_STRNDUP]) + HAVE_DECL_STRNDUP=1; AC_SUBST([HAVE_DECL_STRNDUP]) + HAVE_DECL_STRNLEN=1; AC_SUBST([HAVE_DECL_STRNLEN]) + HAVE_STRPBRK=1; AC_SUBST([HAVE_STRPBRK]) + HAVE_STRSEP=1; AC_SUBST([HAVE_STRSEP]) + HAVE_STRCASESTR=1; AC_SUBST([HAVE_STRCASESTR]) + HAVE_DECL_STRTOK_R=1; AC_SUBST([HAVE_DECL_STRTOK_R]) + HAVE_DECL_STRERROR=1; AC_SUBST([HAVE_DECL_STRERROR]) + HAVE_DECL_STRSIGNAL=1; AC_SUBST([HAVE_DECL_STRSIGNAL]) + HAVE_STRVERSCMP=1; AC_SUBST([HAVE_STRVERSCMP]) + REPLACE_MEMMEM=0; AC_SUBST([REPLACE_MEMMEM]) + REPLACE_STRDUP=0; AC_SUBST([REPLACE_STRDUP]) + REPLACE_STRSTR=0; AC_SUBST([REPLACE_STRSTR]) + REPLACE_STRCASESTR=0; AC_SUBST([REPLACE_STRCASESTR]) + REPLACE_STRERROR=0; AC_SUBST([REPLACE_STRERROR]) + REPLACE_STRSIGNAL=0; AC_SUBST([REPLACE_STRSIGNAL]) +]) diff --git a/gl/m4/sys_socket_h.m4 b/gl/m4/sys_socket_h.m4 new file mode 100644 index 0000000000..85a0ace8ad --- /dev/null +++ b/gl/m4/sys_socket_h.m4 @@ -0,0 +1,117 @@ +# sys_socket_h.m4 serial 12 +dnl Copyright (C) 2005-2008 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Simon Josefsson. + +AC_DEFUN([gl_HEADER_SYS_SOCKET], +[ + AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS]) + AC_REQUIRE([AC_C_INLINE]) + + AC_CACHE_CHECK([whether <sys/socket.h> is self-contained], + [gl_cv_header_sys_socket_h_selfcontained], + [ + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/socket.h>]], [[]])], + [gl_cv_header_sys_socket_h_selfcontained=yes], + [gl_cv_header_sys_socket_h_selfcontained=no]) + ]) + if test $gl_cv_header_sys_socket_h_selfcontained = yes; then + SYS_SOCKET_H='' + dnl If the shutdown function exists, <sys/socket.h> should define + dnl SHUT_RD, SHUT_WR, SHUT_RDWR. + AC_CHECK_FUNCS([shutdown]) + if test $ac_cv_func_shutdown = yes; then + AC_CACHE_CHECK([whether <sys/socket.h> defines the SHUT_* macros], + [gl_cv_header_sys_socket_h_shut], + [ + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[#include <sys/socket.h>]], + [[int a[] = { SHUT_RD, SHUT_WR, SHUT_RDWR };]])], + [gl_cv_header_sys_socket_h_shut=yes], + [gl_cv_header_sys_socket_h_shut=no]) + ]) + if test $gl_cv_header_sys_socket_h_shut = no; then + SYS_SOCKET_H='sys/socket.h' + fi + fi + else + SYS_SOCKET_H='sys/socket.h' + fi + if test -n "$SYS_SOCKET_H"; then + dnl Check prerequisites of the <sys/socket.h> replacement. + gl_CHECK_NEXT_HEADERS([sys/socket.h]) + if test $ac_cv_header_sys_socket_h = yes; then + HAVE_SYS_SOCKET_H=1 + HAVE_WS2TCPIP_H=0 + else + HAVE_SYS_SOCKET_H=0 + dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make + dnl the check for those headers unconditional; yet cygwin reports + dnl that the headers are present but cannot be compiled (since on + dnl cygwin, all socket information should come from sys/socket.h). + AC_CHECK_HEADERS([ws2tcpip.h]) + if test $ac_cv_header_ws2tcpip_h = yes; then + HAVE_WS2TCPIP_H=1 + else + HAVE_WS2TCPIP_H=0 + fi + fi + gl_PREREQ_SYS_H_WINSOCK2 + AC_SUBST([HAVE_SYS_SOCKET_H]) + AC_SUBST([HAVE_WS2TCPIP_H]) + fi + AC_SUBST([SYS_SOCKET_H]) +]) + +# Common prerequisites of of the <sys/socket.h> replacement and of the +# <sys/select.h> replacement. +# Sets and substitutes HAVE_WINSOCK2_H. +AC_DEFUN([gl_PREREQ_SYS_H_WINSOCK2], +[ + m4_ifdef([gl_UNISTD_H_DEFAULTS], [AC_REQUIRE([gl_UNISTD_H_DEFAULTS])]) + m4_ifdef([gl_SYS_IOCTL_H_DEFAULTS], [AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS])]) + AC_CHECK_HEADERS_ONCE([sys/socket.h]) + if test $ac_cv_header_sys_socket_h != yes; then + dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make + dnl the check for those headers unconditional; yet cygwin reports + dnl that the headers are present but cannot be compiled (since on + dnl cygwin, all socket information should come from sys/socket.h). + AC_CHECK_HEADERS([winsock2.h]) + fi + if test "$ac_cv_header_winsock2_h" = yes; then + HAVE_WINSOCK2_H=1 + UNISTD_H_HAVE_WINSOCK2_H=1 + SYS_IOCTL_H_HAVE_WINSOCK2_H=1 + else + HAVE_WINSOCK2_H=0 + fi + AC_SUBST([HAVE_WINSOCK2_H]) +]) + +AC_DEFUN([gl_SYS_SOCKET_MODULE_INDICATOR], +[ + dnl Use AC_REQUIRE here, so that the default settings are expanded once only. + AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS]) + GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1 +]) + +AC_DEFUN([gl_SYS_SOCKET_H_DEFAULTS], +[ + GNULIB_SOCKET=0; AC_SUBST([GNULIB_SOCKET]) + GNULIB_CONNECT=0; AC_SUBST([GNULIB_CONNECT]) + GNULIB_ACCEPT=0; AC_SUBST([GNULIB_ACCEPT]) + GNULIB_BIND=0; AC_SUBST([GNULIB_BIND]) + GNULIB_GETPEERNAME=0; AC_SUBST([GNULIB_GETPEERNAME]) + GNULIB_GETSOCKNAME=0; AC_SUBST([GNULIB_GETSOCKNAME]) + GNULIB_GETSOCKOPT=0; AC_SUBST([GNULIB_GETSOCKOPT]) + GNULIB_LISTEN=0; AC_SUBST([GNULIB_LISTEN]) + GNULIB_RECV=0; AC_SUBST([GNULIB_RECV]) + GNULIB_SEND=0; AC_SUBST([GNULIB_SEND]) + GNULIB_RECVFROM=0; AC_SUBST([GNULIB_RECVFROM]) + GNULIB_SENDTO=0; AC_SUBST([GNULIB_SENDTO]) + GNULIB_SETSOCKOPT=0; AC_SUBST([GNULIB_SETSOCKOPT]) + GNULIB_SHUTDOWN=0; AC_SUBST([GNULIB_SHUTDOWN]) +]) diff --git a/gl/m4/unistd_h.m4 b/gl/m4/unistd_h.m4 new file mode 100644 index 0000000000..5685273656 --- /dev/null +++ b/gl/m4/unistd_h.m4 @@ -0,0 +1,81 @@ +# unistd_h.m4 serial 16 +dnl Copyright (C) 2006-2008 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Written by Simon Josefsson, Bruno Haible. + +AC_DEFUN([gl_UNISTD_H], +[ + dnl Use AC_REQUIRE here, so that the default behavior below is expanded + dnl once only, before all statements that occur in other macros. + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + + gl_CHECK_NEXT_HEADERS([unistd.h]) + + AC_CHECK_HEADERS_ONCE([unistd.h]) + if test $ac_cv_header_unistd_h = yes; then + HAVE_UNISTD_H=1 + else + HAVE_UNISTD_H=0 + fi + AC_SUBST([HAVE_UNISTD_H]) +]) + +AC_DEFUN([gl_UNISTD_MODULE_INDICATOR], +[ + dnl Use AC_REQUIRE here, so that the default settings are expanded once only. + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1 +]) + +AC_DEFUN([gl_UNISTD_H_DEFAULTS], +[ + GNULIB_CHOWN=0; AC_SUBST([GNULIB_CHOWN]) + GNULIB_CLOSE=0; AC_SUBST([GNULIB_CLOSE]) + GNULIB_DUP2=0; AC_SUBST([GNULIB_DUP2]) + GNULIB_ENVIRON=0; AC_SUBST([GNULIB_ENVIRON]) + GNULIB_EUIDACCESS=0; AC_SUBST([GNULIB_EUIDACCESS]) + GNULIB_FCHDIR=0; AC_SUBST([GNULIB_FCHDIR]) + GNULIB_FSYNC=0; AC_SUBST([GNULIB_FSYNC]) + GNULIB_FTRUNCATE=0; AC_SUBST([GNULIB_FTRUNCATE]) + GNULIB_GETCWD=0; AC_SUBST([GNULIB_GETCWD]) + GNULIB_GETDOMAINNAME=0; AC_SUBST([GNULIB_GETDOMAINNAME]) + GNULIB_GETDTABLESIZE=0; AC_SUBST([GNULIB_GETDTABLESIZE]) + GNULIB_GETHOSTNAME=0; AC_SUBST([GNULIB_GETHOSTNAME]) + GNULIB_GETLOGIN_R=0; AC_SUBST([GNULIB_GETLOGIN_R]) + GNULIB_GETPAGESIZE=0; AC_SUBST([GNULIB_GETPAGESIZE]) + GNULIB_GETUSERSHELL=0; AC_SUBST([GNULIB_GETUSERSHELL]) + GNULIB_LCHOWN=0; AC_SUBST([GNULIB_LCHOWN]) + GNULIB_LSEEK=0; AC_SUBST([GNULIB_LSEEK]) + GNULIB_READLINK=0; AC_SUBST([GNULIB_READLINK]) + GNULIB_SLEEP=0; AC_SUBST([GNULIB_SLEEP]) + GNULIB_UNISTD_H_SIGPIPE=0; AC_SUBST([GNULIB_UNISTD_H_SIGPIPE]) + GNULIB_WRITE=0; AC_SUBST([GNULIB_WRITE]) + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_DUP2=1; AC_SUBST([HAVE_DUP2]) + HAVE_EUIDACCESS=1; AC_SUBST([HAVE_EUIDACCESS]) + HAVE_FSYNC=1; AC_SUBST([HAVE_FSYNC]) + HAVE_FTRUNCATE=1; AC_SUBST([HAVE_FTRUNCATE]) + HAVE_GETDOMAINNAME=1; AC_SUBST([HAVE_GETDOMAINNAME]) + HAVE_GETDTABLESIZE=1; AC_SUBST([HAVE_GETDTABLESIZE]) + HAVE_GETHOSTNAME=1; AC_SUBST([HAVE_GETHOSTNAME]) + HAVE_GETPAGESIZE=1; AC_SUBST([HAVE_GETPAGESIZE]) + HAVE_GETUSERSHELL=1; AC_SUBST([HAVE_GETUSERSHELL]) + HAVE_READLINK=1; AC_SUBST([HAVE_READLINK]) + HAVE_SLEEP=1; AC_SUBST([HAVE_SLEEP]) + HAVE_DECL_ENVIRON=1; AC_SUBST([HAVE_DECL_ENVIRON]) + HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R]) + HAVE_OS_H=0; AC_SUBST([HAVE_OS_H]) + HAVE_SYS_PARAM_H=0; AC_SUBST([HAVE_SYS_PARAM_H]) + REPLACE_CHOWN=0; AC_SUBST([REPLACE_CHOWN]) + REPLACE_CLOSE=0; AC_SUBST([REPLACE_CLOSE]) + REPLACE_FCHDIR=0; AC_SUBST([REPLACE_FCHDIR]) + REPLACE_GETCWD=0; AC_SUBST([REPLACE_GETCWD]) + REPLACE_GETPAGESIZE=0; AC_SUBST([REPLACE_GETPAGESIZE]) + REPLACE_LCHOWN=0; AC_SUBST([REPLACE_LCHOWN]) + REPLACE_LSEEK=0; AC_SUBST([REPLACE_LSEEK]) + REPLACE_WRITE=0; AC_SUBST([REPLACE_WRITE]) + UNISTD_H_HAVE_WINSOCK2_H=0; AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H]) +]) diff --git a/gl/m4/vasnprintf.m4 b/gl/m4/vasnprintf.m4 new file mode 100644 index 0000000000..536258c06b --- /dev/null +++ b/gl/m4/vasnprintf.m4 @@ -0,0 +1,260 @@ +# vasnprintf.m4 serial 25 +dnl Copyright (C) 2002-2004, 2006-2008 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_VASNPRINTF], +[ + AC_CHECK_FUNCS_ONCE([vasnprintf]) + if test $ac_cv_func_vasnprintf = no; then + gl_REPLACE_VASNPRINTF + fi +]) + +AC_DEFUN([gl_REPLACE_VASNPRINTF], +[ + AC_CHECK_FUNCS_ONCE([vasnprintf]) + AC_LIBOBJ([vasnprintf]) + AC_LIBOBJ([printf-args]) + AC_LIBOBJ([printf-parse]) + AC_LIBOBJ([asnprintf]) + if test $ac_cv_func_vasnprintf = yes; then + AC_DEFINE([REPLACE_VASNPRINTF], 1, + [Define if vasnprintf exists but is overridden by gnulib.]) + fi + gl_PREREQ_PRINTF_ARGS + gl_PREREQ_PRINTF_PARSE + gl_PREREQ_VASNPRINTF + gl_PREREQ_ASNPRINTF +]) + +# Prequisites of lib/printf-args.h, lib/printf-args.c. +AC_DEFUN([gl_PREREQ_PRINTF_ARGS], +[ + AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) + AC_REQUIRE([gt_TYPE_WCHAR_T]) + AC_REQUIRE([gt_TYPE_WINT_T]) +]) + +# Prequisites of lib/printf-parse.h, lib/printf-parse.c. +AC_DEFUN([gl_PREREQ_PRINTF_PARSE], +[ + AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) + AC_REQUIRE([gt_TYPE_WCHAR_T]) + AC_REQUIRE([gt_TYPE_WINT_T]) + AC_REQUIRE([AC_TYPE_SIZE_T]) + AC_CHECK_TYPE([ptrdiff_t], , + [AC_DEFINE([ptrdiff_t], [long], + [Define as the type of the result of subtracting two pointers, if the system doesn't define it.]) + ]) + AC_REQUIRE([gt_AC_TYPE_INTMAX_T]) +]) + +# Prerequisites of lib/vasnprintf.c. +AC_DEFUN([gl_PREREQ_VASNPRINTF], +[ + AC_REQUIRE([AC_FUNC_ALLOCA]) + AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) + AC_REQUIRE([gt_TYPE_WCHAR_T]) + AC_REQUIRE([gt_TYPE_WINT_T]) + AC_CHECK_FUNCS(snprintf wcslen) + dnl Use the _snprintf function only if it is declared (because on NetBSD it + dnl is defined as a weak alias of snprintf; we prefer to use the latter). + AC_CHECK_DECLS([_snprintf], , , [#include <stdio.h>]) +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting 'long double' +# arguments. +AC_DEFUN([gl_PREREQ_VASNPRINTF_LONG_DOUBLE], +[ + AC_REQUIRE([gl_PRINTF_LONG_DOUBLE]) + case "$gl_cv_func_printf_long_double" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], 1, + [Define if the vasnprintf implementation needs special code for + 'long double' arguments.]) + ;; + esac +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting infinite 'double' +# arguments. +AC_DEFUN([gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE], +[ + AC_REQUIRE([gl_PRINTF_INFINITE]) + case "$gl_cv_func_printf_infinite" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_INFINITE_DOUBLE], 1, + [Define if the vasnprintf implementation needs special code for + infinite 'double' arguments.]) + ;; + esac +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting infinite 'long double' +# arguments. +AC_DEFUN([gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE], +[ + AC_REQUIRE([gl_PRINTF_INFINITE_LONG_DOUBLE]) + dnl There is no need to set NEED_PRINTF_INFINITE_LONG_DOUBLE if + dnl NEED_PRINTF_LONG_DOUBLE is already set. + AC_REQUIRE([gl_PREREQ_VASNPRINTF_LONG_DOUBLE]) + case "$gl_cv_func_printf_long_double" in + *yes) + case "$gl_cv_func_printf_infinite_long_double" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_INFINITE_LONG_DOUBLE], 1, + [Define if the vasnprintf implementation needs special code for + infinite 'long double' arguments.]) + ;; + esac + ;; + esac +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting the 'a' directive. +AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_A], +[ + AC_REQUIRE([gl_PRINTF_DIRECTIVE_A]) + case "$gl_cv_func_printf_directive_a" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_DIRECTIVE_A], 1, + [Define if the vasnprintf implementation needs special code for + the 'a' and 'A' directives.]) + AC_CHECK_FUNCS([nl_langinfo]) + ;; + esac +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting the 'F' directive. +AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_F], +[ + AC_REQUIRE([gl_PRINTF_DIRECTIVE_F]) + case "$gl_cv_func_printf_directive_f" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_DIRECTIVE_F], 1, + [Define if the vasnprintf implementation needs special code for + the 'F' directive.]) + ;; + esac +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting the ' flag. +AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_GROUPING], +[ + AC_REQUIRE([gl_PRINTF_FLAG_GROUPING]) + case "$gl_cv_func_printf_flag_grouping" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_FLAG_GROUPING], 1, + [Define if the vasnprintf implementation needs special code for the + ' flag.]) + ;; + esac +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting the '-' flag. +AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST], +[ + AC_REQUIRE([gl_PRINTF_FLAG_LEFTADJUST]) + case "$gl_cv_func_printf_flag_leftadjust" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_FLAG_LEFTADJUST], 1, + [Define if the vasnprintf implementation needs special code for the + '-' flag.]) + ;; + esac +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting the 0 flag. +AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_ZERO], +[ + AC_REQUIRE([gl_PRINTF_FLAG_ZERO]) + case "$gl_cv_func_printf_flag_zero" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_FLAG_ZERO], 1, + [Define if the vasnprintf implementation needs special code for the + 0 flag.]) + ;; + esac +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting large precisions. +AC_DEFUN([gl_PREREQ_VASNPRINTF_PRECISION], +[ + AC_REQUIRE([gl_PRINTF_PRECISION]) + case "$gl_cv_func_printf_precision" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_UNBOUNDED_PRECISION], 1, + [Define if the vasnprintf implementation needs special code for + supporting large precisions without arbitrary bounds.]) + AC_DEFINE([NEED_PRINTF_DOUBLE], 1, + [Define if the vasnprintf implementation needs special code for + 'double' arguments.]) + AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], 1, + [Define if the vasnprintf implementation needs special code for + 'long double' arguments.]) + ;; + esac +]) + +# Extra prerequisites of lib/vasnprintf.c for surviving out-of-memory +# conditions. +AC_DEFUN([gl_PREREQ_VASNPRINTF_ENOMEM], +[ + AC_REQUIRE([gl_PRINTF_ENOMEM]) + case "$gl_cv_func_printf_enomem" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_ENOMEM], 1, + [Define if the vasnprintf implementation needs special code for + surviving out-of-memory conditions.]) + AC_DEFINE([NEED_PRINTF_DOUBLE], 1, + [Define if the vasnprintf implementation needs special code for + 'double' arguments.]) + AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], 1, + [Define if the vasnprintf implementation needs special code for + 'long double' arguments.]) + ;; + esac +]) + +# Prerequisites of lib/vasnprintf.c including all extras for POSIX compliance. +AC_DEFUN([gl_PREREQ_VASNPRINTF_WITH_EXTRAS], +[ + AC_REQUIRE([gl_PREREQ_VASNPRINTF]) + gl_PREREQ_VASNPRINTF_LONG_DOUBLE + gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE + gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE + gl_PREREQ_VASNPRINTF_DIRECTIVE_A + gl_PREREQ_VASNPRINTF_DIRECTIVE_F + gl_PREREQ_VASNPRINTF_FLAG_GROUPING + gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST + gl_PREREQ_VASNPRINTF_FLAG_ZERO + gl_PREREQ_VASNPRINTF_PRECISION + gl_PREREQ_VASNPRINTF_ENOMEM +]) + +# Prerequisites of lib/asnprintf.c. +AC_DEFUN([gl_PREREQ_ASNPRINTF], +[ +]) diff --git a/gl/m4/wchar.m4 b/gl/m4/wchar.m4 new file mode 100644 index 0000000000..5c923fa0e0 --- /dev/null +++ b/gl/m4/wchar.m4 @@ -0,0 +1,69 @@ +dnl A placeholder for ISO C99 <wchar.h>, for platforms that have issues. + +dnl Copyright (C) 2007-2008 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Written by Eric Blake. + +# wchar.m4 serial 6 + +AC_DEFUN([gl_WCHAR_H], +[ + AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) + AC_CACHE_CHECK([whether <wchar.h> is standalone], + [gl_cv_header_wchar_h_standalone], + [AC_COMPILE_IFELSE([[#include <wchar.h> +wchar_t w;]], + [gl_cv_header_wchar_h_standalone=yes], + [gl_cv_header_wchar_h_standalone=no])]) + + AC_REQUIRE([gt_TYPE_WINT_T]) + if test $gt_cv_c_wint_t = yes; then + HAVE_WINT_T=1 + else + HAVE_WINT_T=0 + fi + AC_SUBST([HAVE_WINT_T]) + + if test $gl_cv_header_wchar_h_standalone != yes || test $gt_cv_c_wint_t != yes; then + WCHAR_H=wchar.h + fi + + dnl Prepare for creating substitute <wchar.h>. + dnl Do it always: WCHAR_H may be empty here but can be set later. + dnl Check for <wchar.h> (missing in Linux uClibc when built without wide + dnl character support). + AC_CHECK_HEADERS_ONCE([wchar.h]) + if test $ac_cv_header_wchar_h = yes; then + HAVE_WCHAR_H=1 + else + HAVE_WCHAR_H=0 + fi + AC_SUBST([HAVE_WCHAR_H]) + gl_CHECK_NEXT_HEADERS([wchar.h]) +]) + +dnl Unconditionally enables the replacement of <wchar.h>. +AC_DEFUN([gl_REPLACE_WCHAR_H], +[ + AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) + WCHAR_H=wchar.h +]) + +AC_DEFUN([gl_WCHAR_MODULE_INDICATOR], +[ + dnl Use AC_REQUIRE here, so that the default settings are expanded once only. + AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) + GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1 +]) + +AC_DEFUN([gl_WCHAR_H_DEFAULTS], +[ + GNULIB_WCWIDTH=0; AC_SUBST([GNULIB_WCWIDTH]) + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_DECL_WCWIDTH=1; AC_SUBST([HAVE_DECL_WCWIDTH]) + REPLACE_WCWIDTH=0; AC_SUBST([REPLACE_WCWIDTH]) + WCHAR_H=''; AC_SUBST([WCHAR_H]) +]) diff --git a/gl/m4/wchar_t.m4 b/gl/m4/wchar_t.m4 new file mode 100644 index 0000000000..cde2129a97 --- /dev/null +++ b/gl/m4/wchar_t.m4 @@ -0,0 +1,20 @@ +# wchar_t.m4 serial 1 (gettext-0.12) +dnl Copyright (C) 2002-2003 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. +dnl Test whether <stddef.h> has the 'wchar_t' type. +dnl Prerequisite: AC_PROG_CC + +AC_DEFUN([gt_TYPE_WCHAR_T], +[ + AC_CACHE_CHECK([for wchar_t], gt_cv_c_wchar_t, + [AC_TRY_COMPILE([#include <stddef.h> + wchar_t foo = (wchar_t)'\0';], , + gt_cv_c_wchar_t=yes, gt_cv_c_wchar_t=no)]) + if test $gt_cv_c_wchar_t = yes; then + AC_DEFINE(HAVE_WCHAR_T, 1, [Define if you have the 'wchar_t' type.]) + fi +]) diff --git a/gl/m4/wint_t.m4 b/gl/m4/wint_t.m4 new file mode 100644 index 0000000000..af5ed936cc --- /dev/null +++ b/gl/m4/wint_t.m4 @@ -0,0 +1,28 @@ +# wint_t.m4 serial 2 (gettext-0.17) +dnl Copyright (C) 2003, 2007 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. +dnl Test whether <wchar.h> has the 'wint_t' type. +dnl Prerequisite: AC_PROG_CC + +AC_DEFUN([gt_TYPE_WINT_T], +[ + AC_CACHE_CHECK([for wint_t], gt_cv_c_wint_t, + [AC_TRY_COMPILE([ +/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before + <wchar.h>. + BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be included + before <wchar.h>. */ +#include <stddef.h> +#include <stdio.h> +#include <time.h> +#include <wchar.h> + wint_t foo = (wchar_t)'\0';], , + gt_cv_c_wint_t=yes, gt_cv_c_wint_t=no)]) + if test $gt_cv_c_wint_t = yes; then + AC_DEFINE(HAVE_WINT_T, 1, [Define if you have the 'wint_t' type.]) + fi +]) diff --git a/gl/m4/xsize.m4 b/gl/m4/xsize.m4 new file mode 100644 index 0000000000..85bb721e43 --- /dev/null +++ b/gl/m4/xsize.m4 @@ -0,0 +1,13 @@ +# xsize.m4 serial 3 +dnl Copyright (C) 2003-2004 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_XSIZE], +[ + dnl Prerequisites of lib/xsize.h. + AC_REQUIRE([gl_SIZE_MAX]) + AC_REQUIRE([AC_C_INLINE]) + AC_CHECK_HEADERS(stdint.h) +]) |