mirror of
https://code.videolan.org/videolan/vlc
synced 2024-08-27 04:21:53 +02:00
7bbc2548f9
The whole point of keeping the m4 and po/Makefile.in.in is to not need to have the same version all over the place anyway, otherwise we might as well put all these files to .gitignore... Remove some old m4 macros as well.
85 lines
2.3 KiB
Plaintext
85 lines
2.3 KiB
Plaintext
# intdiv0.m4 serial 2 (gettext-0.17)
|
|
dnl Copyright (C) 2002, 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.
|
|
|
|
AC_DEFUN([gt_INTDIV0],
|
|
[
|
|
AC_REQUIRE([AC_PROG_CC])dnl
|
|
AC_REQUIRE([AC_CANONICAL_HOST])dnl
|
|
|
|
AC_CACHE_CHECK([whether integer division by zero raises SIGFPE],
|
|
gt_cv_int_divbyzero_sigfpe,
|
|
[
|
|
gt_cv_int_divbyzero_sigfpe=
|
|
changequote(,)dnl
|
|
case "$host_os" in
|
|
macos* | darwin[6-9]* | darwin[1-9][0-9]*)
|
|
# On MacOS X 10.2 or newer, just assume the same as when cross-
|
|
# compiling. If we were to perform the real test, 1 Crash Report
|
|
# dialog window would pop up.
|
|
case "$host_cpu" in
|
|
i[34567]86 | x86_64)
|
|
gt_cv_int_divbyzero_sigfpe="guessing yes" ;;
|
|
esac
|
|
;;
|
|
esac
|
|
changequote([,])dnl
|
|
if test -z "$gt_cv_int_divbyzero_sigfpe"; then
|
|
AC_TRY_RUN([
|
|
#include <stdlib.h>
|
|
#include <signal.h>
|
|
|
|
static void
|
|
sigfpe_handler (int sig)
|
|
{
|
|
/* Exit with code 0 if SIGFPE, with code 1 if any other signal. */
|
|
exit (sig != SIGFPE);
|
|
}
|
|
|
|
int x = 1;
|
|
int y = 0;
|
|
int z;
|
|
int nan;
|
|
|
|
int main ()
|
|
{
|
|
signal (SIGFPE, sigfpe_handler);
|
|
/* IRIX and AIX (when "xlc -qcheck" is used) yield signal SIGTRAP. */
|
|
#if (defined (__sgi) || defined (_AIX)) && defined (SIGTRAP)
|
|
signal (SIGTRAP, sigfpe_handler);
|
|
#endif
|
|
/* Linux/SPARC yields signal SIGILL. */
|
|
#if defined (__sparc__) && defined (__linux__)
|
|
signal (SIGILL, sigfpe_handler);
|
|
#endif
|
|
|
|
z = x / y;
|
|
nan = y / y;
|
|
exit (1);
|
|
}
|
|
], gt_cv_int_divbyzero_sigfpe=yes, gt_cv_int_divbyzero_sigfpe=no,
|
|
[
|
|
# Guess based on the CPU.
|
|
changequote(,)dnl
|
|
case "$host_cpu" in
|
|
alpha* | i[34567]86 | x86_64 | m68k | s390*)
|
|
gt_cv_int_divbyzero_sigfpe="guessing yes";;
|
|
*)
|
|
gt_cv_int_divbyzero_sigfpe="guessing no";;
|
|
esac
|
|
changequote([,])dnl
|
|
])
|
|
fi
|
|
])
|
|
case "$gt_cv_int_divbyzero_sigfpe" in
|
|
*yes) value=1;;
|
|
*) value=0;;
|
|
esac
|
|
AC_DEFINE_UNQUOTED(INTDIV0_RAISES_SIGFPE, $value,
|
|
[Define if integer division by zero raises signal SIGFPE.])
|
|
])
|