ref: eb78a94ed2d3a30cb40f2007d8bc7472966b6788
dir: /m4/check_signal.m4/
dnl @synopsis AC_CHECK_SIGNAL(SIGNAME)
dnl
dnl
dnl @category C
dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
dnl @version 1.0 Jul 07 2007
AC_DEFUN([AC_CHECK_SIGNAL],
[AC_CACHE_CHECK(for $1,
ac_cv_signal_$1,
[
AC_TRY_LINK([
#include <signal.h>
], signal($1, SIG_DFL) ;, ac_cv_signal_$1=yes, ac_cv_signal_$1=no)
])
if test "$ac_cv_signal_$1" = yes; then
AC_DEFINE(HAVE_$1, 1,
[Define if you have signal $1.])
fi
])# AC_CHECK_SIGNAL
## AC_CHECK_SIGNALS