X-Git-Url: http://j8takagi.net/cgi-bin/gitweb.cgi?p=YACASL2.git;a=blobdiff_plain;f=Makefile;h=396aeb50fe292fef2b5e60ca7d1afbd9d094d181;hp=49692453f6615727f68b0ddce2a29b391382bade;hb=9a03447739ef5e8dd12d745805516dd5bcc00bea;hpb=b3f91f53a0a715249df3582be19d064f831619a0

diff --git a/Makefile b/Makefile
index 4969245..396aeb5 100644
--- a/Makefile
+++ b/Makefile
@@ -3,6 +3,7 @@
 GTAGS ?= gtags
 RMF ?= rm -f
 WHICH ?= which
+ECHO ?= echo
 
 all: build doc doc_inner
 
@@ -10,10 +11,10 @@ build:
 	$(MAKE) -C src
 
 gtags:
-	($(WHICH) $(GTAGS) && $(GTAGS)) >/dev/null
+	$(WHICH) $(GTAGS) && $(GTAGS) >/dev/null || $(ECHO) "$(GTAGS): not found"
 
 check:
-	$(MAKE) -C test/system
+	$(MAKE) -sC test/system
 
 doc:
 	$(MAKE) -C $@