From 29a1905c7d8d8174c25d2c5de4c33bb5c2b55c61 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 22 Oct 2015 14:56:37 +0000
Subject: [PATCH] common.mk: showflags only once

* common.mk (showflags): do not show flags from recursive make.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52221 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 common.mk     | 14 ++++++++------
 defs/gmake.mk |  2 +-
 ext/extmk.rb  |  1 +
 3 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/common.mk b/common.mk
index d854264b37..a5e897e578 100644
--- a/common.mk
+++ b/common.mk
@@ -156,13 +156,15 @@ TESTRUN_SCRIPT = $(srcdir)/test.rb
 
 COMPILE_PRELUDE = $(srcdir)/tool/generic_erb.rb $(srcdir)/template/prelude.c.tmpl
 
-all: showflags main docs
+SHOWFLAGS = showflags
 
-main: showflags $(ENCSTATIC:static=lib)encs exts
+all: $(SHOWFLAGS) main docs
+
+main: $(SHOWFLAGS) $(ENCSTATIC:static=lib)encs exts
 	@$(NULLCMD)
 
 .PHONY: showflags
-exts enc trans: showflags
+exts enc trans: $(SHOWFLAGS)
 showflags:
 	$(MESSAGE_BEGIN) \
 	"	CC = $(CC)" \
@@ -219,8 +221,8 @@ Doxyfile: $(srcdir)/template/Doxyfile.tmpl $(PREP) $(srcdir)/tool/generic_erb.rb
 	$(Q) $(MINIRUBY) $(srcdir)/tool/generic_erb.rb -o $@ $(srcdir)/template/Doxyfile.tmpl \
 	--srcdir="$(srcdir)" --miniruby="$(MINIRUBY)"
 
-program: showflags $(PROGRAM)
-wprogram: showflags $(WPROGRAM)
+program: $(SHOWFLAGS) $(PROGRAM)
+wprogram: $(SHOWFLAGS) $(WPROGRAM)
 mini: PHONY miniruby$(EXEEXT)
 
 $(PROGRAM) $(WPROGRAM): $(LIBRUBY) $(MAINOBJ) $(OBJS) $(EXTOBJS) $(SETUP) $(PREP)
@@ -631,7 +633,7 @@ yes-runnable: PHONY
 
 encs: enc trans
 libencs: libenc libtrans
-encs enc trans libencs libenc libtrans: showflags $(ENC_MK) $(LIBRUBY) $(PREP) PHONY
+encs enc trans libencs libenc libtrans: $(SHOWFLAGS) $(ENC_MK) $(LIBRUBY) $(PREP) PHONY
 	$(ECHO) making $@
 	$(Q) $(MAKE) -f $(ENC_MK) V="$(V)" \
 		RUBY="$(MINIRUBY)" MINIRUBY="$(MINIRUBY)" \
diff --git a/defs/gmake.mk b/defs/gmake.mk
index 50b1ac5312..439ca9b6f0 100644
--- a/defs/gmake.mk
+++ b/defs/gmake.mk
@@ -18,7 +18,7 @@ ifeq ($(if $(filter all main exts enc trans libencs libenc libtrans \
 		    wprogram rubyw rubyw$(EXEEXT) \
 		    miniruby$(EXEEXT) mini,\
 	     $(MAKECMDGOALS)),,$(MAKECMDGOALS)),)
--include showflags
+-include $(SHOWFLAGS)
 endif
 
 ifneq ($(filter universal-%,$(arch)),)
diff --git a/ext/extmk.rb b/ext/extmk.rb
index ad01ff4d2b..38b25e2a27 100755
--- a/ext/extmk.rb
+++ b/ext/extmk.rb
@@ -703,6 +703,7 @@ if $configure_only and $command_output
     end
     submakeopts << 'EXTLDFLAGS="$(EXTLDFLAGS)"'
     submakeopts << 'UPDATE_LIBRARIES="$(UPDATE_LIBRARIES)"'
+    submakeopts << 'SHOWFLAGS='
     mf.macro "SUBMAKEOPTS", submakeopts
     mf.puts
     targets = %w[all install static install-so install-rb clean distclean realclean]