Allow master to build on Fedora with the recent threading changes

The recent threading changes have broken the build on Fedora,
and presumably other Red Hat based distributions. This adds an explicit
"-lpthread" to the linker command line and allows the latest master to build
on Fedora. I've also tested this on Ubuntu and it builds fine there.

Signed-off-by: Kyle Mestery <kmestery@cisco.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Ed Maste <emaste@freebsd.org>

diff --git a/configure.ac b/configure.ac
index bbb6dea..fe3f9c7 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -44,6 +44,7 @@ AC_SYS_LARGEFILE
 AC_SEARCH_LIBS([pow], [m])
 AC_SEARCH_LIBS([clock_gettime], [rt])
 AC_SEARCH_LIBS([timer_create], [rt])
+AC_SEARCH_LIBS([pthread_sigmask], [pthread])
 
 OVS_CHECK_ESX
 OVS_CHECK_COVERAGE