diff options
Diffstat (limited to 'm4/printf.m4')
| -rw-r--r-- | m4/printf.m4 | 414 |
1 files changed, 288 insertions, 126 deletions
diff --git a/m4/printf.m4 b/m4/printf.m4 index a44ac66b8..c8e74e22c 100644 --- a/m4/printf.m4 +++ b/m4/printf.m4 @@ -1,5 +1,5 @@ -# printf.m4 serial 52 -dnl Copyright (C) 2003, 2007-2017 Free Software Foundation, Inc. +# printf.m4 serial 71 +dnl Copyright (C) 2003, 2007-2021 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. @@ -58,10 +58,12 @@ int main () [gl_cv_func_printf_sizes_c99=yes], [gl_cv_func_printf_sizes_c99=no], [ -changequote(,)dnl case "$host_os" in +changequote(,)dnl # Guess yes on glibc systems. - *-gnu*) gl_cv_func_printf_sizes_c99="guessing yes";; + *-gnu* | gnu*) gl_cv_func_printf_sizes_c99="guessing yes";; + # Guess yes on musl systems. + *-musl*) gl_cv_func_printf_sizes_c99="guessing yes";; # Guess yes on FreeBSD >= 5. freebsd[1-4].*) gl_cv_func_printf_sizes_c99="guessing no";; freebsd* | kfreebsd*) gl_cv_func_printf_sizes_c99="guessing yes";; @@ -79,10 +81,21 @@ changequote(,)dnl netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) gl_cv_func_printf_sizes_c99="guessing no";; netbsd*) gl_cv_func_printf_sizes_c99="guessing yes";; - # If we don't know, assume the worst. - *) gl_cv_func_printf_sizes_c99="guessing no";; - esac + # Guess yes on Android. + linux*-android*) gl_cv_func_printf_sizes_c99="guessing yes";; changequote([,])dnl + # Guess yes on MSVC, no on mingw. + mingw*) AC_EGREP_CPP([Known], [ +#ifdef _MSC_VER + Known +#endif + ], + [gl_cv_func_printf_sizes_c99="guessing yes"], + [gl_cv_func_printf_sizes_c99="guessing no"]) + ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_printf_sizes_c99="$gl_cross_guess_normal";; + esac ]) ]) ]) @@ -122,14 +135,22 @@ int main () }]])], [gl_cv_func_printf_long_double=yes], [gl_cv_func_printf_long_double=no], - [ -changequote(,)dnl - case "$host_os" in - beos*) gl_cv_func_printf_long_double="guessing no";; - mingw* | pw*) gl_cv_func_printf_long_double="guessing no";; - *) gl_cv_func_printf_long_double="guessing yes";; + [case "$host_os" in + # Guess no on BeOS. + beos*) gl_cv_func_printf_long_double="guessing no";; + # Guess yes on Android. + linux*-android*) gl_cv_func_printf_long_double="guessing yes";; + # Guess yes on MSVC, no on mingw. + mingw*) AC_EGREP_CPP([Known], [ +#ifdef _MSC_VER + Known +#endif + ], + [gl_cv_func_printf_long_double="guessing yes"], + [gl_cv_func_printf_long_double="guessing no"]) + ;; + *) gl_cv_func_printf_long_double="guessing yes";; esac -changequote([,])dnl ]) ]) ]) @@ -217,10 +238,12 @@ int main () [gl_cv_func_printf_infinite=yes], [gl_cv_func_printf_infinite=no], [ -changequote(,)dnl case "$host_os" in +changequote(,)dnl # Guess yes on glibc systems. - *-gnu*) gl_cv_func_printf_infinite="guessing yes";; + *-gnu* | gnu*) gl_cv_func_printf_infinite="guessing yes";; + # Guess yes on musl systems. + *-musl*) gl_cv_func_printf_infinite="guessing yes";; # Guess yes on FreeBSD >= 6. freebsd[1-5].*) gl_cv_func_printf_infinite="guessing no";; freebsd* | kfreebsd*) gl_cv_func_printf_infinite="guessing yes";; @@ -234,12 +257,26 @@ changequote(,)dnl netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) gl_cv_func_printf_infinite="guessing no";; netbsd*) gl_cv_func_printf_infinite="guessing yes";; + # Guess yes on OpenBSD >= 6.0. + openbsd[1-5].*) gl_cv_func_printf_infinite="guessing no";; + openbsd*) gl_cv_func_printf_infinite="guessing yes";; # Guess yes on BeOS. beos*) gl_cv_func_printf_infinite="guessing yes";; - # If we don't know, assume the worst. - *) gl_cv_func_printf_infinite="guessing no";; - esac + # Guess no on Android. + linux*-android*) gl_cv_func_printf_infinite="guessing no";; changequote([,])dnl + # Guess yes on MSVC, no on mingw. + mingw*) AC_EGREP_CPP([Known], [ +#ifdef _MSC_VER + Known +#endif + ], + [gl_cv_func_printf_infinite="guessing yes"], + [gl_cv_func_printf_infinite="guessing no"]) + ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_printf_infinite="$gl_cross_guess_normal";; + esac ]) ]) ]) @@ -419,27 +456,42 @@ int main () }]])], [gl_cv_func_printf_infinite_long_double=yes], [gl_cv_func_printf_infinite_long_double=no], - [ -changequote(,)dnl - case "$host_cpu" in + [case "$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 "$host_os" in +changequote(,)dnl # Guess yes on glibc systems. - *-gnu*) gl_cv_func_printf_infinite_long_double="guessing yes";; + *-gnu* | gnu*) gl_cv_func_printf_infinite_long_double="guessing yes";; + # Guess yes on musl systems. + *-musl*) gl_cv_func_printf_infinite_long_double="guessing yes";; # Guess yes on FreeBSD >= 6. freebsd[1-5].*) gl_cv_func_printf_infinite_long_double="guessing no";; freebsd* | kfreebsd*) gl_cv_func_printf_infinite_long_double="guessing yes";; # Guess yes on HP-UX >= 11. hpux[7-9]* | hpux10*) gl_cv_func_printf_infinite_long_double="guessing no";; hpux*) gl_cv_func_printf_infinite_long_double="guessing yes";; - # If we don't know, assume the worst. - *) gl_cv_func_printf_infinite_long_double="guessing no";; + # Guess yes on OpenBSD >= 6.0. + openbsd[1-5].*) gl_cv_func_printf_infinite_long_double="guessing no";; + openbsd*) gl_cv_func_printf_infinite_long_double="guessing yes";; + # Guess no on Android. + linux*-android*) gl_cv_func_printf_infinite_long_double="guessing no";; +changequote([,])dnl + # Guess yes on MSVC, no on mingw. + mingw*) AC_EGREP_CPP([Known], [ +#ifdef _MSC_VER + Known +#endif + ], + [gl_cv_func_printf_infinite_long_double="guessing yes"], + [gl_cv_func_printf_infinite_long_double="guessing no"]) + ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_printf_infinite_long_double="$gl_cross_guess_normal";; esac ;; esac -changequote([,])dnl ]) ]) ;; @@ -489,8 +541,15 @@ int main () && strcmp (buf, "0x6.0ap-2 33") != 0 && strcmp (buf, "0xc.14p-3 33") != 0)) result |= 4; + /* This catches a Mac OS X 10.12.4 (Darwin 16.5) bug: it doesn't round. */ + if (sprintf (buf, "%.0a %d", 1.51, 33, 44, 55) < 0 + || (strcmp (buf, "0x2p+0 33") != 0 + && strcmp (buf, "0x3p-1 33") != 0 + && strcmp (buf, "0x6p-2 33") != 0 + && strcmp (buf, "0xcp-3 33") != 0)) + result |= 4; /* This catches a FreeBSD 6.1 bug. See - <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */ + <https://lists.gnu.org/r/bug-gnulib/2007-04/msg00107.html> */ if (sprintf (buf, "%010a %d", 1.0 / zero, 33, 44, 55) < 0 || buf[0] == '0') result |= 8; @@ -502,7 +561,7 @@ int main () && strcmp (buf, "0x8.0p-2") != 0)) result |= 16; /* This catches the same Mac OS X 10.3.9 (Darwin 7.9) bug and also a - glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>. */ + glibc 2.4 bug <https://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 @@ -516,7 +575,7 @@ int main () [ case "$host_os" in # Guess yes on glibc >= 2.5 systems. - *-gnu*) + *-gnu* | gnu*) AC_EGREP_CPP([BZ2908], [ #include <features.h> #ifdef __GNU_LIBRARY__ @@ -528,8 +587,14 @@ int main () [gl_cv_func_printf_directive_a="guessing yes"], [gl_cv_func_printf_directive_a="guessing no"]) ;; - # If we don't know, assume the worst. - *) gl_cv_func_printf_directive_a="guessing no";; + # Guess yes on musl systems. + *-musl*) gl_cv_func_printf_directive_a="guessing yes";; + # Guess no on Android. + linux*-android*) gl_cv_func_printf_directive_a="guessing no";; + # Guess no on native Windows. + mingw*) gl_cv_func_printf_directive_a="guessing no";; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_printf_directive_a="$gl_cross_guess_normal";; esac ]) ]) @@ -570,23 +635,39 @@ int main () [gl_cv_func_printf_directive_f=yes], [gl_cv_func_printf_directive_f=no], [ -changequote(,)dnl case "$host_os" in +changequote(,)dnl # Guess yes on glibc systems. - *-gnu*) gl_cv_func_printf_directive_f="guessing yes";; + *-gnu* | gnu*) gl_cv_func_printf_directive_f="guessing yes";; + # Guess yes on musl systems. + *-musl*) gl_cv_func_printf_directive_f="guessing yes";; # Guess yes on FreeBSD >= 6. freebsd[1-5].*) gl_cv_func_printf_directive_f="guessing no";; freebsd* | kfreebsd*) gl_cv_func_printf_directive_f="guessing yes";; # Guess yes on Mac OS X >= 10.3. darwin[1-6].*) gl_cv_func_printf_directive_f="guessing no";; darwin*) gl_cv_func_printf_directive_f="guessing yes";; + # Guess yes on OpenBSD >= 6.0. + openbsd[1-5].*) gl_cv_func_printf_directive_f="guessing no";; + openbsd*) gl_cv_func_printf_directive_f="guessing yes";; # Guess yes on Solaris >= 2.10. - solaris2.[1-9][0-9]*) gl_cv_func_printf_sizes_c99="guessing yes";; - solaris*) gl_cv_func_printf_sizes_c99="guessing no";; - # If we don't know, assume the worst. - *) gl_cv_func_printf_directive_f="guessing no";; - esac + solaris2.[1-9][0-9]*) gl_cv_func_printf_directive_f="guessing yes";; + solaris*) gl_cv_func_printf_directive_f="guessing no";; + # Guess no on Android. + linux*-android*) gl_cv_func_printf_directive_f="guessing no";; changequote([,])dnl + # Guess yes on MSVC, no on mingw. + mingw*) AC_EGREP_CPP([Known], [ +#ifdef _MSC_VER + Known +#endif + ], + [gl_cv_func_printf_directive_f="guessing yes"], + [gl_cv_func_printf_directive_f="guessing no"]) + ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_printf_directive_f="$gl_cross_guess_normal";; + esac ]) ]) ]) @@ -608,7 +689,10 @@ AC_DEFUN([gl_PRINTF_DIRECTIVE_N], #include <stdlib.h> #include <string.h> #ifdef _MSC_VER -/* See page about "Parameter Validation" on msdn.microsoft.com. */ +#include <inttypes.h> +/* See page about "Parameter Validation" on msdn.microsoft.com. + <https://docs.microsoft.com/en-us/cpp/c-runtime-library/parameter-validation> + <https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/set-invalid-parameter-handler-set-thread-local-invalid-parameter-handler> */ static void cdecl invalid_parameter_handler (const wchar_t *expression, const wchar_t *function, @@ -638,13 +722,23 @@ int main () }]])], [gl_cv_func_printf_directive_n=yes], [gl_cv_func_printf_directive_n=no], - [ -changequote(,)dnl - case "$host_os" in - mingw*) gl_cv_func_printf_directive_n="guessing no";; - *) gl_cv_func_printf_directive_n="guessing yes";; + [case "$host_os" in + # Guess no on glibc when _FORTIFY_SOURCE >= 2. + *-gnu* | gnu*) AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if _FORTIFY_SOURCE >= 2 + error fail + #endif + ]])], + [gl_cv_func_printf_directive_n="guessing yes"], + [gl_cv_func_printf_directive_n="guessing no"]) + ;; + # Guess no on Android. + linux*-android*) gl_cv_func_printf_directive_n="guessing no";; + # Guess no on native Windows. + mingw*) gl_cv_func_printf_directive_n="guessing no";; + *) gl_cv_func_printf_directive_n="guessing yes";; esac -changequote([,])dnl ]) ]) ]) @@ -665,13 +759,7 @@ AC_DEFUN([gl_PRINTF_DIRECTIVE_LS], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ -/* 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> #include <string.h> int main () @@ -719,11 +807,17 @@ int main () [ changequote(,)dnl case "$host_os" in - openbsd*) gl_cv_func_printf_directive_ls="guessing no";; + # Guess yes on OpenBSD >= 6.0. + openbsd[1-5].*) gl_cv_func_printf_directive_ls="guessing no";; + openbsd*) gl_cv_func_printf_directive_ls="guessing yes";; irix*) gl_cv_func_printf_directive_ls="guessing no";; solaris*) gl_cv_func_printf_directive_ls="guessing no";; cygwin*) gl_cv_func_printf_directive_ls="guessing no";; beos* | haiku*) gl_cv_func_printf_directive_ls="guessing no";; + # Guess no on Android. + linux*-android*) gl_cv_func_printf_directive_ls="guessing no";; + # Guess yes on native Windows. + mingw*) gl_cv_func_printf_directive_ls="guessing yes";; *) gl_cv_func_printf_directive_ls="guessing yes";; esac changequote([,])dnl @@ -761,10 +855,13 @@ int main () changequote(,)dnl case "$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";; + gl_cv_func_printf_positions="guessing no";; + beos*) gl_cv_func_printf_positions="guessing no";; + # Guess yes on Android. + linux*-android*) gl_cv_func_printf_positions="guessing yes";; + # Guess no on native Windows. + mingw* | pw*) gl_cv_func_printf_positions="guessing no";; + *) gl_cv_func_printf_positions="guessing yes";; esac changequote([,])dnl ]) @@ -799,10 +896,13 @@ int main () [ changequote(,)dnl case "$host_os" in - cygwin*) gl_cv_func_printf_flag_grouping="guessing no";; - netbsd*) gl_cv_func_printf_flag_grouping="guessing no";; - mingw* | pw*) gl_cv_func_printf_flag_grouping="guessing no";; - *) gl_cv_func_printf_flag_grouping="guessing yes";; + cygwin*) gl_cv_func_printf_flag_grouping="guessing no";; + netbsd*) gl_cv_func_printf_flag_grouping="guessing no";; + # Guess no on Android. + linux*-android*) gl_cv_func_printf_flag_grouping="guessing no";; + # Guess no on native Windows. + mingw* | pw*) gl_cv_func_printf_flag_grouping="guessing no";; + *) gl_cv_func_printf_flag_grouping="guessing yes";; esac changequote([,])dnl ]) @@ -811,7 +911,7 @@ changequote([,])dnl dnl Test whether the *printf family of functions supports the - flag correctly. dnl (ISO C99.) See -dnl <http://lists.gnu.org/archive/html/bug-coreutils/2008-02/msg00035.html> +dnl <https://lists.gnu.org/r/bug-coreutils/2008-02/msg00035.html> dnl Result is gl_cv_func_printf_flag_leftadjust. AC_DEFUN([gl_PRINTF_FLAG_LEFTADJUST], @@ -839,12 +939,16 @@ int main () [ changequote(,)dnl case "$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";; + # 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 on Android. + linux*-android*) gl_cv_func_printf_flag_leftadjust="guessing yes";; + # Guess yes on native Windows. + mingw*) gl_cv_func_printf_flag_leftadjust="guessing yes";; + # Guess yes otherwise. + *) gl_cv_func_printf_flag_leftadjust="guessing yes";; esac changequote([,])dnl ]) @@ -853,7 +957,7 @@ 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 <https://lists.gnu.org/r/bug-gnulib/2007-04/msg00107.html> dnl Result is gl_cv_func_printf_flag_zero. AC_DEFUN([gl_PRINTF_FLAG_ZERO], @@ -882,12 +986,18 @@ int main () [ changequote(,)dnl case "$host_os" in - # Guess yes on glibc systems. - *-gnu*) gl_cv_func_printf_flag_zero="guessing yes";; - # Guess yes on BeOS. - beos*) gl_cv_func_printf_flag_zero="guessing yes";; - # If we don't know, assume the worst. - *) gl_cv_func_printf_flag_zero="guessing no";; + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_printf_flag_zero="guessing yes";; + # Guess yes on musl systems. + *-musl*) gl_cv_func_printf_flag_zero="guessing yes";; + # Guess yes on BeOS. + beos*) gl_cv_func_printf_flag_zero="guessing yes";; + # Guess no on Android. + linux*-android*) gl_cv_func_printf_flag_zero="guessing no";; + # Guess no on native Windows. + mingw*) gl_cv_func_printf_flag_zero="guessing no";; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_printf_flag_zero="$gl_cross_guess_normal";; esac changequote([,])dnl ]) @@ -940,10 +1050,12 @@ int main () changequote(,)dnl case "$host_os" in # Guess no only on Solaris, native Windows, and BeOS systems. - solaris*) gl_cv_func_printf_precision="guessing no" ;; - mingw* | pw*) gl_cv_func_printf_precision="guessing no" ;; - beos*) gl_cv_func_printf_precision="guessing no" ;; - *) gl_cv_func_printf_precision="guessing yes" ;; + solaris*) gl_cv_func_printf_precision="guessing no" ;; + mingw* | pw*) gl_cv_func_printf_precision="guessing no" ;; + beos*) gl_cv_func_printf_precision="guessing no" ;; + # Guess yes on Android. + linux*-android*) gl_cv_func_printf_precision="guessing yes" ;; + *) gl_cv_func_printf_precision="guessing yes" ;; esac changequote([,])dnl ]) @@ -965,9 +1077,8 @@ AC_DEFUN([gl_PRINTF_ENOMEM], gl_cv_func_printf_enomem="guessing no" if test "$cross_compiling" = no; then if test $APPLE_UNIVERSAL_BUILD = 0; then - AC_LANG_CONFTEST([AC_LANG_SOURCE([ + AC_LANG_CONFTEST([AC_LANG_SOURCE([[ ]GL_NOCRASH[ -changequote(,)dnl #include <stdio.h> #include <sys/types.h> #include <sys/time.h> @@ -1012,8 +1123,7 @@ int main() ret = printf ("%.5000000f", 1.0); return !(ret == 5000002 || (ret < 0 && errno == ENOMEM)); } -changequote([,])dnl - ])]) + ]])]) if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then (./conftest 2>&AS_MESSAGE_LOG_FD result=$? @@ -1040,28 +1150,30 @@ changequote([,])dnl if test "$gl_cv_func_printf_enomem" = "guessing no"; then 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";; - # Guess yes on Haiku. - haiku*) gl_cv_func_printf_enomem="guessing yes";; - # If we don't know, assume the worst. - *) gl_cv_func_printf_enomem="guessing no";; + # Guess yes on glibc systems. + *-gnu* | 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 "$host_cpu" in + hppa*) gl_cv_func_printf_enomem="guessing yes";; + *) gl_cv_func_printf_enomem="guessing no";; + esac + ;; + # Guess yes on IRIX. + irix*) gl_cv_func_printf_enomem="guessing yes";; + # Guess yes on OSF/1. + osf*) gl_cv_func_printf_enomem="guessing yes";; + # Guess yes on BeOS. + beos*) gl_cv_func_printf_enomem="guessing yes";; + # Guess yes on Haiku. + haiku*) gl_cv_func_printf_enomem="guessing yes";; + # Guess no on Android. + linux*-android*) gl_cv_func_printf_enomem="guessing no";; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_printf_enomem="$gl_cross_guess_normal";; esac changequote([,])dnl fi @@ -1080,7 +1192,7 @@ 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_DEFUN_ONCE([gl_SNPRINTF_TRUNCATION_C99], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles @@ -1121,7 +1233,9 @@ int main () changequote(,)dnl case "$host_os" in # Guess yes on glibc systems. - *-gnu*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + *-gnu* | gnu*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on musl systems. + *-musl*) gl_cv_func_snprintf_truncation_c99="guessing yes";; # Guess yes on FreeBSD >= 5. freebsd[1-4].*) gl_cv_func_snprintf_truncation_c99="guessing no";; freebsd* | kfreebsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";; @@ -1153,8 +1267,12 @@ changequote(,)dnl netbsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";; # Guess yes on BeOS. beos*) gl_cv_func_snprintf_truncation_c99="guessing yes";; - # If we don't know, assume the worst. - *) gl_cv_func_snprintf_truncation_c99="guessing no";; + # Guess yes on Android. + linux*-android*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess no on native Windows. + mingw*) gl_cv_func_snprintf_truncation_c99="guessing no";; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_snprintf_truncation_c99="$gl_cross_guess_normal";; esac changequote([,])dnl ]) @@ -1216,11 +1334,12 @@ int main () }]])], [gl_cv_func_snprintf_retval_c99=yes], [gl_cv_func_snprintf_retval_c99=no], - [ + [case "$host_os" in changequote(,)dnl - case "$host_os" in # Guess yes on glibc systems. - *-gnu*) gl_cv_func_snprintf_retval_c99="guessing yes";; + *-gnu* | gnu*) gl_cv_func_snprintf_retval_c99="guessing yes";; + # Guess yes on musl systems. + *-musl*) 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";; @@ -1243,10 +1362,21 @@ changequote(,)dnl 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 + # Guess yes on Android. + linux*-android*) gl_cv_func_snprintf_retval_c99="guessing yes";; changequote([,])dnl + # Guess yes on MSVC, no on mingw. + mingw*) AC_EGREP_CPP([Known], [ +#ifdef _MSC_VER + Known +#endif + ], + [gl_cv_func_snprintf_retval_c99="guessing yes"], + [gl_cv_func_snprintf_retval_c99="guessing no"]) + ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_snprintf_retval_c99="$gl_cross_guess_normal";; + esac ]) ]) ]) @@ -1298,10 +1428,20 @@ int main () [gl_cv_func_snprintf_directive_n=yes], [gl_cv_func_snprintf_directive_n=no], [ -changequote(,)dnl case "$host_os" in - # Guess yes on glibc systems. - *-gnu*) gl_cv_func_snprintf_directive_n="guessing yes";; + # Guess no on glibc when _FORTIFY_SOURCE >= 2. + *-gnu* | gnu*) AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if _FORTIFY_SOURCE >= 2 + error fail + #endif + ]])], + [gl_cv_func_snprintf_directive_n="guessing yes"], + [gl_cv_func_snprintf_directive_n="guessing no"]) + ;; +changequote(,)dnl + # Guess yes on musl systems. + *-musl*) 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";; @@ -1326,10 +1466,14 @@ changequote(,)dnl 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 + # Guess no on Android. + linux*-android*) gl_cv_func_snprintf_directive_n="guessing no";; + # Guess no on native Windows. + mingw*) gl_cv_func_snprintf_directive_n="guessing no";; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_snprintf_directive_n="$gl_cross_guess_normal";; changequote([,])dnl + esac ]) ]) ]) @@ -1342,6 +1486,7 @@ dnl Result is gl_cv_func_snprintf_size1. AC_DEFUN([gl_SNPRINTF_SIZE1], [ AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_REQUIRE([gl_SNPRINTF_PRESENCE]) AC_CACHE_CHECK([whether snprintf respects a size of 1], [gl_cv_func_snprintf_size1], @@ -1371,7 +1516,14 @@ int main() }]])], [gl_cv_func_snprintf_size1=yes], [gl_cv_func_snprintf_size1=no], - [gl_cv_func_snprintf_size1="guessing yes"]) + [case "$host_os" in + # Guess yes on Android. + linux*-android*) gl_cv_func_snprintf_size1="guessing yes" ;; + # Guess yes on native Windows. + mingw*) gl_cv_func_snprintf_size1="guessing yes" ;; + *) gl_cv_func_snprintf_size1="guessing yes" ;; + esac + ]) ]) ]) @@ -1443,7 +1595,9 @@ int main() changequote(,)dnl case "$host_os" in # Guess yes on glibc systems. - *-gnu*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + *-gnu* | gnu*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on musl systems. + *-musl*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; # Guess yes on FreeBSD >= 5. freebsd[1-4].*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; freebsd* | kfreebsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; @@ -1467,10 +1621,12 @@ changequote(,)dnl netbsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; # Guess yes on BeOS. beos*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; - # Guess yes on mingw. + # Guess yes on Android. + linux*-android*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on native Windows. mingw* | pw*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; - # If we don't know, assume the worst. - *) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_vsnprintf_zerosize_c99="$gl_cross_guess_normal";; esac changequote([,])dnl ]) @@ -1527,13 +1683,17 @@ dnl 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 dnl glibc 2.5 . . . . . . . . . . . . . . . . . . . . dnl glibc 2.3.6 . . . . # . . . . . . . . . . . . . . . dnl FreeBSD 5.4, 6.1 . . . . # . . . . . . # . # . . . . . . +dnl Mac OS X 10.13.5 . . . # # . # . . . . . . . . . . # . . dnl Mac OS X 10.5.8 . . . # # . . . . . . # . . . . . . . . dnl Mac OS X 10.3.9 . . . . # . . . . . . # . # . . . . . . +dnl OpenBSD 6.0, 6.7 . . . . # . . . . . . . . # . . . . . . dnl OpenBSD 3.9, 4.0 . . # # # # . # . # . # . # . . . . . . dnl Cygwin 1.7.0 (2009) . . . # . . . ? . . . . . ? . . . . . . dnl Cygwin 1.5.25 (2008) . . . # # . . # . . . . . # . . . . . . dnl Cygwin 1.5.19 (2006) # . . # # # . # . # . # # # . . . . . . -dnl Solaris 11 2011-11 . . # # # . . # . . . # . . . . . . . . +dnl Solaris 11.4 . . # # # . . # . . . # . . . . . . . . +dnl Solaris 11.3 . . . . # . . # . . . . . . . . . . . . +dnl Solaris 11.0 . . # # # . . # . . . # . . . . . . . . dnl Solaris 10 . . # # # . . # . . . # # . . . . . . . dnl Solaris 2.6 ... 9 # . # # # # . # . . . # # . . . # . . . dnl Solaris 2.5.1 # . # # # # . # . . . # . . # # # # # # @@ -1546,11 +1706,13 @@ dnl HP-UX 10.20 # . # . # # . ? . . # # . . . dnl IRIX 6.5 # . # # # # . # . . . # . . . . # . . . dnl OSF/1 5.1 # . # # # # . . . . . # . . . . # . . # dnl OSF/1 4.0d # . # # # # . . . . . # . . # # # # # # +dnl NetBSD 9.0 . . . . # . . . . . . . . . . . . . . . dnl NetBSD 5.0 . . . # # . . . . . . # . # . . . . . . dnl NetBSD 4.0 . ? ? ? ? ? . ? . ? ? ? ? ? . . . ? ? ? dnl NetBSD 3.0 . . . . # # . ? # # ? # . # . . . . . . dnl Haiku . . . # # # . # . . . . . ? . . ? . . . dnl BeOS # # . # # # . ? # . ? . # ? . . ? . . . +dnl Android 4.3 . . # # # # # # . # . # . # . . . # . . dnl old mingw / msvcrt # # # # # # . . # # . # # ? . # # # . . dnl MSVC 9 # # # # # # # . # # . # # ? # # # # . . dnl mingw 2009-2011 . # . # . . . . # # . . . ? . . . . . . |