Add OSX into the logic that uses md5 instead of md5sum.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@89399 65c4cc65-6c06-0410-ace0-fbb531ad65f3

build_tools/make_buildopts_h

@@ -23,7 +23,7 @@ then
 fi
 
 case ${OSARCH} in	# actually we should check build_os
-*BSD|mingw*)
+*BSD|mingw|darwin*)
 	BUILDSUM=`echo ${TMP} | md5`
 	echo "#define AST_BUILDOPT_SUM {0x0, 0x0, 0x0, 0x0} /* dummy */"
 	;;