kosaki	2011-11-25 08:02:44 +0900 (Fri, 25 Nov 2011)

  New Revision: 33834

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=33834

  Log:
    * lib/mkmf.rb: get rid of warnings of mkmf.rb if -Wmissing-declarations
      and/or -Wold-style-definition warnings if specified.
      Patch by Nikolai Weibull. Thank you! [Bug #5459] [ruby-core:40200]

  Modified files:
    trunk/ChangeLog
    trunk/lib/mkmf.rb

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 33833)
+++ ChangeLog	(revision 33834)
@@ -1,3 +1,9 @@
+Fri Nov 25 08:00:23 2011  KOSAKI Motohiro  <kosaki.motohiro@g...>
+
+	* lib/mkmf.rb: get rid of warnings of mkmf.rb if -Wmissing-declarations
+	  and/or -Wold-style-definition warnings if specified.
+	  Patch by Nikolai Weibull. Thank you! [Bug #5459] [ruby-core:40200]
+
 Fri Nov 25 07:56:49 2011  KOSAKI Motohiro  <kosaki.motohiro@g...>
 
 	* configure.in: remove [read buffer ptr field in FILE structures] check.
Index: lib/mkmf.rb
===================================================================
--- lib/mkmf.rb	(revision 33833)
+++ lib/mkmf.rb	(revision 33834)
@@ -643,13 +643,15 @@
 #{headers}
 /*top*/
 #{MAIN_DOES_NOTHING}
-int t() { #{decltype["volatile p"]}; p = (#{decltype[]})#{func}; return 0; }
+extern int t(void);
+int t(void) { #{decltype["volatile p"]}; p = (#{decltype[]})#{func}; return 0; }
 SRC
   call && try_link(<<"SRC", opt, &b)
 #{headers}
 /*top*/
 #{MAIN_DOES_NOTHING}
-int t() { #{call}; return 0; }
+extern int t(void);
+int t(void) { #{func}(); return 0; }
 SRC
 end
 
@@ -660,7 +662,8 @@
 #{headers}
 /*top*/
 #{MAIN_DOES_NOTHING}
-int t() { const volatile void *volatile p; p = &(&#{var})[0]; return 0; }
+extern int t(void);
+int t(void) { const volatile void *volatile p; p = &(&#{var})[0]; return 0; }
 SRC
 end
 
@@ -1276,7 +1279,8 @@
 /*top*/
 volatile #{type} conftestval;
 #{MAIN_DOES_NOTHING}
-int t() {return (int)(1-*(conftestval#{member ? ".#{member}" : ""}));}
+extern int t(void);
+int t(void) {return (int)(1-*(conftestval#{member ? ".#{member}" : ""}));}
 SRC
 end
 
@@ -1288,7 +1292,8 @@
 /*top*/
 volatile #{type} conftestval;
 #{MAIN_DOES_NOTHING}
-int t() {return (int)(1-(conftestval#{member ? ".#{member}" : ""}));}
+extern int t(void);
+int t(void) {return (int)(1-(conftestval#{member ? ".#{member}" : ""}));}
 SRC
 end
 
@@ -2308,7 +2313,7 @@
 LIBPATHFLAG = config_string('LIBPATHFLAG') || ' -L"%s"'
 RPATHFLAG = config_string('RPATHFLAG') || ''
 LIBARG = config_string('LIBARG') || '-l%s'
-MAIN_DOES_NOTHING = config_string('MAIN_DOES_NOTHING') || 'int main() {return 0;}'
+MAIN_DOES_NOTHING = config_string('MAIN_DOES_NOTHING') || 'int main(void) {return 0;}'
 UNIVERSAL_INTS = config_string('UNIVERSAL_INTS') {|s| Shellwords.shellwords(s)} ||
   %w[int short long long\ long]
 

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