1dnl ######################################################################
2dnl check if a system needs to restart its signal handlers
3AC_DEFUN([AMU_CHECK_RESTARTABLE_SIGNAL_HANDLER],
4[
5AC_CACHE_CHECK(if system needs to restart signal handlers,
6ac_cv_restartable_signal_handler,
7[
8# select the correct systems to restart signal handlers
9case "${host_os_name}" in
10	svr3* | svr4* | sysv4* | solaris2* | sunos5* | aoi* | irix* )
11			ac_cv_restartable_signal_handler=yes ;;
12	* )
13			ac_cv_restartable_signal_handler=no ;;
14esac
15])
16# define REINSTALL_SIGNAL_HANDLER if need to
17if test "$ac_cv_restartable_signal_handler" = yes
18then
19  AC_DEFINE(REINSTALL_SIGNAL_HANDLER)
20fi
21])
22dnl ======================================================================
23