diff options
Diffstat (limited to 'm4/intdiv0.m4')
| -rw-r--r-- | m4/intdiv0.m4 | 55 |
1 files changed, 36 insertions, 19 deletions
diff --git a/m4/intdiv0.m4 b/m4/intdiv0.m4 index b8d7817..74d0e80 100644 --- a/m4/intdiv0.m4 +++ b/m4/intdiv0.m4 @@ -1,5 +1,5 @@ -# intdiv0.m4 serial 1 (gettext-0.11.3) -dnl Copyright (C) 2002 Free Software Foundation, Inc. +# intdiv0.m4 serial 6 (gettext-0.18.2) +dnl Copyright (C) 2002, 2007-2008, 2010-2013 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. @@ -14,16 +14,28 @@ AC_DEFUN([gt_INTDIV0], AC_CACHE_CHECK([whether integer division by zero raises SIGFPE], gt_cv_int_divbyzero_sigfpe, [ - AC_TRY_RUN([ + gt_cv_int_divbyzero_sigfpe= +changequote(,)dnl + case "$host_os" in + macos* | darwin[6-9]* | darwin[1-9][0-9]*) + # On Mac OS X 10.2 or newer, just assume the same as when cross- + # compiling. If we were to perform the real test, 1 Crash Report + # dialog window would pop up. + case "$host_cpu" in + i[34567]86 | x86_64) + gt_cv_int_divbyzero_sigfpe="guessing yes" ;; + esac + ;; + esac +changequote([,])dnl + if test -z "$gt_cv_int_divbyzero_sigfpe"; then + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ #include <stdlib.h> #include <signal.h> static void -#ifdef __cplusplus sigfpe_handler (int sig) -#else -sigfpe_handler (sig) int sig; -#endif { /* Exit with code 0 if SIGFPE, with code 1 if any other signal. */ exit (sig != SIGFPE); @@ -48,23 +60,28 @@ int main () z = x / y; nan = y / y; - exit (1); + exit (2); } -], gt_cv_int_divbyzero_sigfpe=yes, gt_cv_int_divbyzero_sigfpe=no, - [ - # Guess based on the CPU. - case "$host_cpu" in - alpha* | i[34567]86 | m68k | s390*) - gt_cv_int_divbyzero_sigfpe="guessing yes";; - *) - gt_cv_int_divbyzero_sigfpe="guessing no";; - esac - ]) +]])], + [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, $value, + AC_DEFINE_UNQUOTED([INTDIV0_RAISES_SIGFPE], [$value], [Define if integer division by zero raises signal SIGFPE.]) ]) |