From 7c5a79efba23cb861dcdb98ffef2227ae9a49bd4 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 12 Jul 2018 02:14:00 +0000
Subject: [PATCH] exe/ruby: link libm for fiddle test

* common.mk (exe/ruby): $(LIBS) should come after the source file
  due to the ld spec.

* ruby-runner.c (ruby_libm_func): force to link libm for fiddle
  test.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63956 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 common.mk     | 2 +-
 ruby-runner.c | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/common.mk b/common.mk
index 340f0a9bab..287241e2ed 100644
--- a/common.mk
+++ b/common.mk
@@ -834,7 +834,7 @@ $(PLATFORM_D):
 	@exit > $@
 
 exe/$(PROGRAM): ruby-runner.c ruby-runner.h exe/.time miniruby$(EXEEXT)
-	$(Q) $(PURIFY) $(CC) $(CFLAGS) $(CPPFLAGS) -DRUBY_INSTALL_NAME=$(@F) $(LDFLAGS) $(LIBS) $(OUTFLAG)$@ $<
+	$(Q) $(PURIFY) $(CC) $(CFLAGS) $(CPPFLAGS) -DRUBY_INSTALL_NAME=$(@F) $(LDFLAGS) $(OUTFLAG)$@ $< $(LIBS)
 	$(Q) $(POSTLINK)
 	$(Q) ./miniruby$(EXEEXT) \
 	    -e 'prog, dest = ARGV; dest += "/ruby"' \
diff --git a/ruby-runner.c b/ruby-runner.c
index 99be4a0013..b5a2e50659 100644
--- a/ruby-runner.c
+++ b/ruby-runner.c
@@ -43,6 +43,10 @@ insert_env_path(const char *envname, const char *paths, size_t size, int prepend
     setenv(envname, env, 1);
 }
 
+/* force to link libm for fiddle test */
+#include <math.h>
+double (*const ruby_libm_func)(double) = log;
+
 #define EXTOUT_DIR BUILDDIR"/"EXTOUT
 int
 main(int argc, char **argv)