From eb92a4d22127e068624f813def702a5f03af980a Mon Sep 17 00:00:00 2001
From: Ken Rice <krice@freeswitch.org>
Date: Tue, 8 May 2012 10:06:35 -0500
Subject: [PATCH] small tweak to not bomb on some version numbers

---
 Makefile.am | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile.am b/Makefile.am
index c6e112c4b9..a752497dc8 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -411,7 +411,7 @@ $(switch_builddir)/quiet_libtool: $(switch_builddir)/libtool
 src/include/switch_version.h: src/include/switch_version.h.in .version $(libfreeswitch_la_SOURCES) $(library_include_HEADERS)
 	@have_version=1 ; \
 	force=0 ; \
-	grep "@SWITCH_VERSION_REVISION@" src/include/switch_version.h.in > /dev/null  && have_version=0 ; \
+	grep -- "@SWITCH_VERSION_REVISION@" src/include/switch_version.h.in > /dev/null  && have_version=0 ; \
 	test ! -f src/include/switch_version.h || grep "@SWITCH_VERSION_REVISION@" src/include/switch_version.h > /dev/null && force=1 ; \
 	if test $$have_version = 1 ; then \
 	  cat src/include/switch_version.h.in > src/include/switch_version.h ; \