From: j8takagi <info@j8takagi.net>
Date: Tue, 23 Oct 2012 16:42:37 +0000 (+0900)
Subject: gtagsがない場合に発生するエラーを回避
X-Git-Tag: v0.1p47^0
X-Git-Url: http://j8takagi.net/cgi-bin/gitweb.cgi?p=YACASL2.git;a=commitdiff_plain;h=ab8b8f03997a5bbb8051ad260406f2e8d4f8ff57

gtagsがない場合に発生するエラーを回避
---

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