41 lines
1.2 KiB
Plaintext
41 lines
1.2 KiB
Plaintext
# sigaction.m4 serial 7
|
|
dnl Copyright (C) 2008-2023 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.
|
|
|
|
# Determine if sigaction interface is present.
|
|
AC_DEFUN([gl_SIGACTION],
|
|
[
|
|
AC_REQUIRE([gl_SIGNAL_H_DEFAULTS])
|
|
AC_CHECK_FUNCS_ONCE([sigaction])
|
|
if test $ac_cv_func_sigaction = yes; then
|
|
AC_CHECK_MEMBERS([struct sigaction.sa_sigaction], , ,
|
|
[[#include <signal.h>]])
|
|
if test $ac_cv_member_struct_sigaction_sa_sigaction = no; then
|
|
HAVE_STRUCT_SIGACTION_SA_SIGACTION=0
|
|
fi
|
|
else
|
|
HAVE_SIGACTION=0
|
|
fi
|
|
])
|
|
|
|
# Prerequisites of the part of lib/signal.in.h and of lib/sigaction.c.
|
|
AC_DEFUN([gl_PREREQ_SIGACTION],
|
|
[
|
|
AC_REQUIRE([gl_SIGNAL_H_DEFAULTS])
|
|
AC_REQUIRE([AC_C_RESTRICT])
|
|
AC_REQUIRE([AC_TYPE_UID_T])
|
|
AC_REQUIRE([gl_PREREQ_SIG_HANDLER_H])
|
|
AC_CHECK_FUNCS_ONCE([sigaltstack siginterrupt])
|
|
AC_CHECK_TYPES([siginfo_t], [], [], [[
|
|
#include <signal.h>
|
|
]])
|
|
if test $ac_cv_type_siginfo_t = no; then
|
|
HAVE_SIGINFO_T=0
|
|
fi
|
|
])
|
|
|
|
# Prerequisites of lib/sig-handler.h.
|
|
AC_DEFUN([gl_PREREQ_SIG_HANDLER_H], [:])
|