From 70b98dd4af780486e2159e04db766e7f6453d7d8 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 31 Aug 2008 08:52:56 +0000
Subject: * lib/mkmf.rb (try_func, try_var, have_struct_member),  
 (scalar_ptr_type?, scalar_type?): use MAIN_DOES_NOTHING.

* lib/mkmf.rb (MAIN_DOES_NOTHING): defaults to ordinary main.

* win32/Makefile.sub (config): for MAIN_DOES_NOTHING for wince.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@18991 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 lib/mkmf.rb | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

(limited to 'lib/mkmf.rb')

diff --git a/lib/mkmf.rb b/lib/mkmf.rb
index 3183940547..89b64bcad3 100644
--- a/lib/mkmf.rb
+++ b/lib/mkmf.rb
@@ -506,12 +506,12 @@ def try_func(func, libs, headers = nil, &b)
 #{COMMON_HEADERS}
 #{headers}
 /*top*/
-int main() { return 0; }
+#{MAIN_DOES_NOTHING}
 int t() { void ((*volatile p)()); p = (void ((*)()))#{func}; return 0; }
 SRC
 #{headers}
 /*top*/
-int main() { return 0; }
+#{MAIN_DOES_NOTHING}
 int t() { #{func}(); return 0; }
 SRC
 end
@@ -522,7 +522,7 @@ def try_var(var, headers = nil, &b)
 #{COMMON_HEADERS}
 #{headers}
 /*top*/
-int main() { return 0; }
+#{MAIN_DOES_NOTHING}
 int t() { const volatile void *volatile p; p = &(&#{var})[0]; return 0; }
 SRC
 end
@@ -840,7 +840,7 @@ def have_struct_member(type, member, headers = nil, &b)
 #{COMMON_HEADERS}
 #{cpp_include(headers)}
 /*top*/
-int main() { return 0; }
+#{MAIN_DOES_NOTHING}
 int s = (char *)&((#{type}*)0)->#{member} - (char *)0;
 SRC
       $defs.push(format("-DHAVE_%s_%s", type.tr_cpp, member.tr_cpp))
@@ -978,7 +978,7 @@ def scalar_ptr_type?(type, member = nil, headers = nil, &b)
 #{cpp_include(headers)}
 /*top*/
 volatile #{type} conftestval;
-int main() { return 0; }
+#{MAIN_DOES_NOTHING}
 int t() {return (int)(1-*(conftestval#{member ? ".#{member}" : ""}));}
 SRC
 end
@@ -991,7 +991,7 @@ def scalar_type?(type, member = nil, headers = nil, &b)
 #{cpp_include(headers)}
 /*top*/
 volatile #{type} conftestval;
-int main() { return 0; }
+#{MAIN_DOES_NOTHING}
 int t() {return (int)(1-(conftestval#{member ? ".#{member}" : ""}));}
 SRC
 end
@@ -1875,6 +1875,7 @@ LINK_SO = config_string('LINK_SO') ||
 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;}'
 
 sep = config_string('BUILD_FILE_SEPARATOR') {|s| ":/=#{s}" if sep != "/"} || ""
 CLEANINGS = "
-- 
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