--- rpl/configure.ac	2017/08/21 09:06:02	1.201
+++ rpl/configure.ac	2017/08/21 16:46:40	1.204
@@ -443,6 +443,12 @@ if test "$UUENCODE" = no; then
 	AC_MSG_ERROR([Can not find uuencode !])
 fi
 
+dnl Checks for patch
+AC_CHECK_PROG(PATCH, patch, yes, no)
+if test "$PATCH" = no; then
+	AC_MSG_ERROR([Can not find patch !])
+fi
+
 if test ! -d tools; then
 	mkdir tools
 fi
@@ -714,6 +720,9 @@ if test "$MOTIF_SUPPORT" = "-DMOTIF_SUPP
 	AC_CHECK_LIB(Xinerama, XineramaIsActive,,
 				 AC_MSG_ERROR([Can not find libXinerama !]))
 fi
+AC_CHECK_LIB(gomp, omp_get_num_procs,, AC_MSG_ERROR([Can not find libgomp !]))
+OPENMP=-lgomp
+AC_SUBST(OPENMP)
 
 dnl Check for union semun
 AC_CHECK_TYPE([union semun], SEMUN=-DUNION_SEMUN, SEMUN=-UUNION_SEMUN, [[