From f93572c531c1e69dc0c5d2c2bfd03fc83044158c Mon Sep 17 00:00:00 2001
From: Daniel Bovensiepen <daniel@bovensiepen.net>
Date: Thu, 20 Sep 2012 18:41:16 +0800
Subject: Optimize Makefile

---
 mrbgems/Makefile     |  2 +-
 mrbgems/gem_helper.c | 31 ++++++++++++++++++++++++-------
 2 files changed, 25 insertions(+), 8 deletions(-)

diff --git a/mrbgems/Makefile b/mrbgems/Makefile
index 6fde97128..0f2908ab9 100644
--- a/mrbgems/Makefile
+++ b/mrbgems/Makefile
@@ -42,7 +42,7 @@ all_gems : $(MMAKER_BIN) g/Makefile
 	$(MAKE) -C g
 
 test :
-	$(MAKE) test -C g
+	@$(MAKE) test -C g
 
 # clean driver and all gems
 .PHONY : clean
diff --git a/mrbgems/gem_helper.c b/mrbgems/gem_helper.c
index 01daef364..dd19ea2d0 100644
--- a/mrbgems/gem_helper.c
+++ b/mrbgems/gem_helper.c
@@ -69,14 +69,31 @@ make_gem_makefile()
   dir_list("\t@$(MAKE) -C ", " $(MAKE_FLAGS)\n", "", "");
 
   puts(".PHONY : test");
-  puts("test :");
-  dir_list("", "/test/*.rb ", "\tcat ../../test/assert.rb ", "> mrbtest.rbtmp");
-  puts("\t../../bin/mrbc -Bmrbtest_irep -omrbtest.ctmp mrbtest.rbtmp");
+  puts("test : mrbtest");
+  puts("\t@./mrbtest");
+  puts("");
+
+  puts("mrbtest : driver.o mrbtest.o");
+  puts("\t$(CC) $(CFLAGS) -o ./mrbtest ./mrbtest.o ../../lib/libmruby.a ./driver.o");
+  puts("");
+
+  puts("driver.o : ../../test/driver.c");
+  puts("\t$(CC) $(CFLAGS) -o $@ -c $<");
+  puts("");
+
+  puts("mrbtest.o : mrbtest.c");
+  puts("");
+
+  puts("mrbtest.c : mrbtest.ctmp");
   puts("\tcat ../../test/init_mrbtest.c mrbtest.ctmp > mrbtest.c");
-  puts("\t$(CC) -c ../../test/driver.c -o ./driver.o $(CFLAGS)");
-  puts("\t$(CC) -c ./mrbtest.c -o ./mrbtest.o $(CFLAGS)");
-  puts("\t$(CC) -o ./mrbtest ./mrbtest.o ../../lib/libmruby.a ./driver.o $(CFLAGS) -lm");
-  puts("\t./mrbtest");
+  puts("");
+
+  puts("mrbtest.ctmp : mrbtest.rbtmp");
+  puts("\t../../bin/mrbc -Bmrbtest_irep -omrbtest.ctmp mrbtest.rbtmp");
+  puts("");
+
+  puts("mrbtest.rbtmp :");
+  dir_list("", "/test/*.rb ", "\tcat ../../test/assert.rb ", "> mrbtest.rbtmp");
   puts("");
 
   puts(".PHONY : clean");
-- 
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