From 71ebbe334deb7f56b393f21d482a6944abdd6e12 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 17 Jun 2015 00:12:30 +0000
Subject: mkmf.rb: suppress warnings

* lib/mkmf.rb (try_func, try_var): suppress
  unused-but-set-variable warnings.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50925 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 lib/mkmf.rb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'lib/mkmf.rb')

diff --git a/lib/mkmf.rb b/lib/mkmf.rb
index 0d19562db6..78521d3875 100644
--- a/lib/mkmf.rb
+++ b/lib/mkmf.rb
@@ -768,7 +768,7 @@ int main() {printf("%"PRI_CONFTEST_PREFIX"#{neg ? 'd' : 'u'}\\n", conftest_const
 /*top*/
 extern int t(void);
 #{MAIN_DOES_NOTHING 't'}
-int t(void) { #{decltype["volatile p"]}; p = (#{decltype[]})#{func}; return 0; }
+int t(void) { #{decltype["volatile p"]}; p = (#{decltype[]})#{func}; return !p; }
 SRC
     call && try_link(<<"SRC", opt, &b)
 #{headers}
@@ -787,7 +787,7 @@ SRC
 /*top*/
 extern int t(void);
 #{MAIN_DOES_NOTHING 't'}
-int t(void) { const volatile void *volatile p; p = &(&#{var})[0]; return 0; }
+int t(void) { const volatile void *volatile p; p = &(&#{var})[0]; return !p; }
 SRC
   end
 
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