diff options
Diffstat (limited to 'gnulib/m4/stdint.m4')
| -rw-r--r-- | gnulib/m4/stdint.m4 | 149 |
1 files changed, 119 insertions, 30 deletions
diff --git a/gnulib/m4/stdint.m4 b/gnulib/m4/stdint.m4 index b255692..27cdcdb 100644 --- a/gnulib/m4/stdint.m4 +++ b/gnulib/m4/stdint.m4 @@ -1,5 +1,5 @@ -# stdint.m4 serial 31 -dnl Copyright (C) 2001-2008 Free Software Foundation, Inc. +# stdint.m4 serial 43 +dnl Copyright (C) 2001-2013 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. @@ -7,9 +7,9 @@ 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_DEFUN_ONCE([gl_STDINT_H], [ - AC_PREREQ(2.59)dnl + AC_PREREQ([2.59])dnl dnl Check for long long int and unsigned long long int. AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) @@ -27,6 +27,15 @@ AC_DEFUN([gl_STDINT_H], fi AC_SUBST([HAVE_UNSIGNED_LONG_LONG_INT]) + dnl Check for <wchar.h>, in the same way as gl_WCHAR_H does. + 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]) + dnl Check for <inttypes.h>. dnl AC_INCLUDES_DEFAULT defines $ac_cv_header_inttypes_h. if test $ac_cv_header_inttypes_h = yes; then @@ -60,8 +69,6 @@ AC_DEFUN([gl_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>. */ @@ -145,9 +152,11 @@ 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))) + ((t) ((t) 0 < (t) -1 ? (t) 0 : ~ TYPE_MAXIMUM (t))) #define TYPE_MAXIMUM(t) \ - ((t) ((t) 0 < (t) -1 ? (t) -1 : ~ (~ (t) 0 << (sizeof (t) * CHAR_BIT - 1)))) + ((t) ((t) 0 < (t) -1 \ + ? (t) -1 \ + : ((((t) 1 << (sizeof (t) * CHAR_BIT - 2)) - 1) * 2 + 1))) struct s { int check_PTRDIFF: PTRDIFF_MIN == TYPE_MINIMUM (ptrdiff_t) @@ -201,7 +210,73 @@ struct s { int check_size: (size_t) -1 == SIZE_MAX ? 1 : -1; }; ]])], - [gl_cv_header_working_stdint_h=yes])]) + [dnl Determine whether the various *_MIN, *_MAX macros are usable + dnl in preprocessor expression. We could do it by compiling a test + dnl program for each of these macros. It is faster to run a program + dnl that inspects the macro expansion. + dnl This detects a bug on HP-UX 11.23/ia64. + AC_RUN_IFELSE([ + AC_LANG_PROGRAM([[ +#define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */ +#include <stdint.h> +] +gl_STDINT_INCLUDES +[ +#include <stdio.h> +#include <string.h> +#define MVAL(macro) MVAL1(macro) +#define MVAL1(expression) #expression +static const char *macro_values[] = + { +#ifdef INT8_MAX + MVAL (INT8_MAX), +#endif +#ifdef INT16_MAX + MVAL (INT16_MAX), +#endif +#ifdef INT32_MAX + MVAL (INT32_MAX), +#endif +#ifdef INT64_MAX + MVAL (INT64_MAX), +#endif +#ifdef UINT8_MAX + MVAL (UINT8_MAX), +#endif +#ifdef UINT16_MAX + MVAL (UINT16_MAX), +#endif +#ifdef UINT32_MAX + MVAL (UINT32_MAX), +#endif +#ifdef UINT64_MAX + MVAL (UINT64_MAX), +#endif + NULL + }; +]], [[ + const char **mv; + for (mv = macro_values; *mv != NULL; mv++) + { + const char *value = *mv; + /* Test whether it looks like a cast expression. */ + if (strncmp (value, "((unsigned int)"/*)*/, 15) == 0 + || strncmp (value, "((unsigned short)"/*)*/, 17) == 0 + || strncmp (value, "((unsigned char)"/*)*/, 16) == 0 + || strncmp (value, "((int)"/*)*/, 6) == 0 + || strncmp (value, "((signed short)"/*)*/, 15) == 0 + || strncmp (value, "((signed char)"/*)*/, 14) == 0) + return mv - macro_values + 1; + } + return 0; +]])], + [gl_cv_header_working_stdint_h=yes], + [], + [dnl When cross-compiling, assume it works. + gl_cv_header_working_stdint_h=yes + ]) + ]) + ]) fi if test "$gl_cv_header_working_stdint_h" = yes; then STDINT_H= @@ -222,14 +297,11 @@ struct s { 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) + AC_SUBST([STDINT_H]) + AM_CONDITIONAL([GL_GENERATE_STDINT_H], [test -n "$STDINT_H"]) ]) dnl gl_STDINT_BITSIZEOF(TYPES, INCLUDES) @@ -241,7 +313,7 @@ AC_DEFUN([gl_STDINT_BITSIZEOF], 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_]), + [AH_TEMPLATE([BITSIZEOF_]m4_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}], @@ -266,7 +338,7 @@ AC_DEFUN([gl_STDINT_BITSIZEOF], eval BITSIZEOF_${GLTYPE}=\$result done m4_foreach_w([gltype], [$1], - [AC_SUBST([BITSIZEOF_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))]) + [AC_SUBST([BITSIZEOF_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))]) ]) dnl gl_CHECK_TYPES_SIGNED(TYPES, INCLUDES) @@ -279,7 +351,7 @@ AC_DEFUN([gl_CHECK_TYPES_SIGNED], 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_]), + [AH_TEMPLATE([HAVE_SIGNED_]m4_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], @@ -292,14 +364,14 @@ AC_DEFUN([gl_CHECK_TYPES_SIGNED], eval result=\$gl_cv_type_${gltype}_signed GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'` if test "$result" = yes; then - AC_DEFINE_UNQUOTED([HAVE_SIGNED_${GLTYPE}], 1) + AC_DEFINE_UNQUOTED([HAVE_SIGNED_${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_]))]) + [AC_SUBST([HAVE_SIGNED_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))]) ]) dnl gl_INTEGER_TYPE_SUFFIX(TYPES, INCLUDES) @@ -312,7 +384,7 @@ AC_DEFUN([gl_INTEGER_TYPE_SUFFIX], 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], + [AH_TEMPLATE(m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX], [Define to l, ll, u, ul, ull, etc., as suitable for constants of type ']gltype['.])]) for gltype in $1 ; do @@ -328,12 +400,12 @@ AC_DEFUN([gl_INTEGER_TYPE_SUFFIX], for glsuf in "$glsufu" ${glsufu}l ${glsufu}ll ${glsufu}i64; do case $glsuf in '') gltype1='int';; - l) gltype1='long int';; - ll) gltype1='long long int';; - i64) gltype1='__int64';; - u) gltype1='unsigned int';; - ul) gltype1='unsigned long int';; - ull) gltype1='unsigned long long int';; + l) gltype1='long int';; + ll) gltype1='long long int';; + i64) gltype1='__int64';; + u) gltype1='unsigned int';; + ul) gltype1='unsigned long int';; + ull) gltype1='unsigned long long int';; ui64)gltype1='unsigned __int64';; esac AC_COMPILE_IFELSE( @@ -348,10 +420,10 @@ AC_DEFUN([gl_INTEGER_TYPE_SUFFIX], eval result=\$gl_cv_type_${gltype}_suffix test "$result" = no && result= eval ${GLTYPE}_SUFFIX=\$result - AC_DEFINE_UNQUOTED([${GLTYPE}_SUFFIX], $result) + AC_DEFINE_UNQUOTED([${GLTYPE}_SUFFIX], [$result]) done m4_foreach_w([gltype], [$1], - [AC_SUBST(translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX])]) + [AC_SUBST(m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX])]) ]) dnl gl_STDINT_INCLUDES @@ -373,14 +445,31 @@ 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], + AC_REQUIRE([gl_MULTIARCH]) + if test $APPLE_UNIVERSAL_BUILD = 0; then + gl_STDINT_BITSIZEOF([ptrdiff_t size_t], + [gl_STDINT_INCLUDES]) + fi + gl_STDINT_BITSIZEOF([sig_atomic_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], + if test $APPLE_UNIVERSAL_BUILD = 0; then + gl_INTEGER_TYPE_SUFFIX([ptrdiff_t size_t], + [gl_STDINT_INCLUDES]) + fi + gl_INTEGER_TYPE_SUFFIX([sig_atomic_t wchar_t wint_t], [gl_STDINT_INCLUDES]) + + dnl If wint_t is smaller than 'int', it cannot satisfy the ISO C 99 + dnl requirement that wint_t is "unchanged by default argument promotions". + dnl In this case gnulib's <wchar.h> and <wctype.h> override wint_t. + dnl Set the variable BITSIZEOF_WINT_T accordingly. + if test $BITSIZEOF_WINT_T -lt 32; then + BITSIZEOF_WINT_T=32 + fi ]) dnl Autoconf >= 2.61 has AC_COMPUTE_INT built-in. |