diff options
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/siginfo.m4 | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/m4/siginfo.m4 b/m4/siginfo.m4 deleted file mode 100644 index f8d0e7496..000000000 --- a/m4/siginfo.m4 +++ /dev/null @@ -1,52 +0,0 @@ -# siginfo.m4 serial 1 (gettext-0.11) -dnl Copyright (C) 2001-2002 Free Software Foundation, Inc. -dnl This file is free software, distributed under the terms of the GNU -dnl General Public License. As a special exception to the GNU General -dnl Public License, this file may be distributed as part of a program -dnl that contains a configuration script generated by Autoconf, under -dnl the same distribution terms as the rest of that program. - -# Determine how to determine the precise cause of a signal, for example -# division by zero. -# - SUSV2 and POSIX specify the use of sigaction with SA_SIGINFO and a member -# void (*)(int sig, siginfo_t *info, void *context) sa_sigaction. -# Linux (2.2.x and newer) and Solaris implement this. -# Linux (2.4.x and newer) on i386, m68k, sparc, sparc64, ia64 actually -# deliver FPE_INTDIV. -# - Without SA_SIGINFO: -# - Linux on m68k calls the handler as -# void (*)(int sig, int code, struct sigcontext* scp). -# For division by zero, code would be VEC_ZERODIV<<2. -# - Linux on sparc calls the handler either as -# void (*)(int sig, int code, struct sigcontext* scp), -# code for division by zero would be SUBSIG_IDIVZERO, or as -# void (*)(int sig, siginfo_t *info, void *context). -# Which one depends on a process specific flag in the kernel. -# - Linux on sparc64 always calls the handler as -# void (*)(int sig, siginfo_t *info, void *context). -# - FreeBSD on i386 calls the handler as -# void (*)(int sig, int code, void* scp, char* addr). -# For division by zero, code would be FPE_INTDIV. -# - SunOS 4 calls the handler as -# void (*)(int sig, int code, void* scp, char* addr). -# - Solaris? -# - Irix 5, OSF/1, AIX call the handler as -# void (*)(int sig, int code, struct sigcontext *scp). -# These are so many OS and CPU dependencies that we don't bother, and rely -# only on SA_SIGINFO. -AC_DEFUN([gt_SIGINFO], -[ - AC_CACHE_CHECK([for signal handlers with siginfo_t], gt_cv_siginfo_t, - [AC_TRY_COMPILE([ -#include <signal.h>], [ -struct sigaction action; -siginfo_t info; -action.sa_flags = SA_SIGINFO; -action.sa_sigaction = (void *) 0; -], gt_cv_siginfo_t=yes, gt_cv_siginfo_t=no)]) - if test $gt_cv_siginfo_t = yes; then - AC_DEFINE(HAVE_SIGINFO, 1, - [Define to 1 if <signal.h> defines the siginfo_t type, - and struct sigaction has the sa_sigaction member and the SA_SIGINFO flag.]) - fi -]) |