patch 9.0.0023: on Solaris timer_create() exists but does not work
Problem: On Solaris timer_create() exists but does not work.
Solution: Adjust the configure check to run the test program.
(closes #10647)
diff --git a/src/configure.ac b/src/configure.ac
index 98e1e2e..58d5d8e 100644
--- a/src/configure.ac
+++ b/src/configure.ac
@@ -3805,10 +3805,12 @@
AC_MSG_RESULT(no))
dnl Check for timer_create. It probably requires the 'rt' library.
+dnl Run the program to find out if timer_create(CLOCK_MONOTONIC) actually
+dnl works, on Solaris timer_create() exists but fails at runtime.
AC_MSG_CHECKING([for timer_create])
save_LIBS="$LIBS"
LIBS="$LIBS -lrt"
-AC_LINK_IFELSE([AC_LANG_PROGRAM([
+AC_RUN_IFELSE([AC_LANG_PROGRAM([
#include<signal.h>
#include<time.h>
static void set_flag(union sigval sv) {}
@@ -3819,11 +3821,12 @@
action.sigev_notify = SIGEV_THREAD;
action.sigev_notify_function = set_flag;
- timer_create(CLOCK_REALTIME, &action, &timer_id);
+ if (timer_create(CLOCK_MONOTONIC, &action, &timer_id) < 0)
+ exit(1); // cannot create a monotonic timer
])],
AC_MSG_RESULT(yes; with -lrt); AC_DEFINE(HAVE_TIMER_CREATE),
LIBS="$save_LIBS"
- AC_LINK_IFELSE([AC_LANG_PROGRAM([
+ AC_RUN_IFELSE([AC_LANG_PROGRAM([
#include<signal.h>
#include<time.h>
static void set_flag(union sigval sv) {}
@@ -3834,7 +3837,8 @@
action.sigev_notify = SIGEV_THREAD;
action.sigev_notify_function = set_flag;
- timer_create(CLOCK_REALTIME, &action, &timer_id);
+ if (timer_create(CLOCK_MONOTONIC, &action, &timer_id) < 0)
+ exit(1); // cannot create a monotonic timer
])],
AC_MSG_RESULT(yes); AC_DEFINE(HAVE_TIMER_CREATE),
AC_MSG_RESULT(no)))