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