X-Git-Url: http://j8takagi.net/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=Makefile;h=a84983ccd9893f5a6e983952db05dc88625dd822;hb=ab8b8f03997a5bbb8051ad260406f2e8d4f8ff57;hp=01f60a941f34a7f88167b99d4d5d0de2699128df;hpb=198e25154f34db7d31ff87bcaf402a827cc5ddec;p=YACASL2.git

diff --git a/Makefile b/Makefile
index 01f60a9..a84983c 100644
--- a/Makefile
+++ b/Makefile
@@ -21,7 +21,7 @@ doxygen: doc_inner
 	@$(DOXYGEN)
 
 gtags: clean_gtags
-	@$(GTAGS)
+	@if test `which $(GTAGS)`; then $(GTAGS); fi
 
 htags: doc_inner
 	@$(MAKE) clean_htags