--- rpl/configure.ac	2013/10/04 08:02:02	1.77
+++ rpl/configure.ac	2013/10/05 18:31:31	1.79
@@ -250,7 +250,7 @@ else
 fi],
 REG=$LDFLAGS
 POSIX_IPCS=guessed
-LDFLAGS=-lrt
+LDFLAGS="-lrt -lpthread"
 [AC_MSG_CHECKING([for POSIX semaphores and shared objects])
 AC_LINK_IFELSE(
 [AC_LANG_PROGRAM([#include <sys/mman.h>
@@ -712,6 +712,12 @@ dnl Do we need to use -lrt?
 AC_CHECK_LIB(rt, nanosleep, LIBS="$LIBS -lrt",
 		AC_MSG_WARN([librt doesn't seem to be needed on this system.]))
 
+AC_CHECK_LIB(rt, shm_open, LIBS="$LIBS -lrt",
+		AC_MSG_WARN([librt doesn't seem to be needed on this system.]))
+
+AC_CHECK_LIB(pthread, pthread_create, LIBS="$LIBS -lpthread",
+		AC_MSG_WARN([libpthread doesn't seem to be needed on this system.]))
+
 dnl Do we need to use -lsocket?
 AC_CHECK_LIB(socket, bind, LIBS="$LIBS -lsocket",
 		AC_MSG_WARN([libsocket doesn't seem to be needed on this system.]))