dnl ************************
dnl ** Check for futex(2) **
dnl ************************
-AC_MSG_CHECKING([for futex(2) system call])
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
+AC_CACHE_CHECK(for futex(2) system call,
+ glib_cv_futex,AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
#include <linux/futex.h>
#include <sys/syscall.h>
#include <unistd.h>
syscall (__NR_futex, NULL, FUTEX_WAKE, FUTEX_WAIT);
return 0;
}
-])],
-[
- AC_MSG_RESULT(yes)
+])],glib_cv_futex=yes,glib_cv_futex=no))
+if test x"$glib_cv_futex" = xyes; then
AC_DEFINE(HAVE_FUTEX, 1, [we have the futex(2) system call])
-],
-[
- AC_MSG_RESULT(no)
-])
+fi
-AC_MSG_CHECKING([for eventfd(2) system call])
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
+AC_CACHE_CHECK(for eventfd(2) system call,
+ glib_cv_eventfd,AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
#include <sys/eventfd.h>
#include <unistd.h>
],[
eventfd (0, EFD_CLOEXEC);
return 0;
}
-])],
-[
- AC_MSG_RESULT(yes)
+])],glib_cv_eventfd=yes,glib_cv_eventfd=no))
+if test x"$glib_cv_eventfd" = x"yes"; then
AC_DEFINE(HAVE_EVENTFD, 1, [we have the eventfd(2) system call])
-],
-[
- AC_MSG_RESULT(no)
-])
+fi
dnl ****************************************
dnl *** GLib POLL* compatibility defines ***