From 91a9b62f812faa5ae09654e860d1b31363098ec5 Mon Sep 17 00:00:00 2001
From: Don Stewart <dons@galois.com>
Date: Fri, 30 Jan 2009 11:35:02 +0000
Subject: Add check for -lrt to get the shm* functions. Subst. in buildinfo

---
 configure.ac | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 83f010b..696a495 100644
--- a/configure.ac
+++ b/configure.ac
@@ -27,6 +27,11 @@ AC_CHECK_FUNCS([lchown setenv sysconf unsetenv])
 AC_CHECK_FUNCS([nanosleep])
 AC_CHECK_FUNCS([ptsname])
 AC_CHECK_FUNCS([setitimer])
+
+# Avoid adding rt if absent or unneeded
+AC_CHECK_LIB(rt, shm_open, [EXTRA_LIBS="$EXTRA_LIBS rt" CFLAGS="$CFLAGS -lrt"])
+
+# needs -lrt on linux
 AC_CHECK_FUNCS([shm_open shm_unlink])
 
 FP_CHECK_CONSTS([SIGABRT SIGALRM SIGBUS SIGCHLD SIGCONT SIGFPE SIGHUP SIGILL SIGINT SIGKILL SIGPIPE SIGQUIT SIGSEGV SIGSTOP SIGTERM SIGTSTP SIGTTIN SIGTTOU SIGUSR1 SIGUSR2 SIGPOLL SIGPROF SIGSYS SIGTRAP SIGURG SIGVTALRM SIGXCPU SIGXFSZ SIG_BLOCK SIG_SETMASK SIG_UNBLOCK], [
-- 
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