From: Eric Hodel <drbrain@...7.net>
Date: 2011-12-13T10:58:48+09:00
Subject: [ruby-core:41622] [ruby-trunk - Bug #5681][Open] Conflcting types for rb_w32_inet_ntop caused by duplicate definition under MinGW


Issue #5681 has been updated by Eric Hodel.

Status changed from Closed to Open

=begin
r33919 broke the socket extension on OS X:

  have_func: checking for inet_ntop(0, (const void *)0, (char *)0, 0)... -------------------- yes
  
  "clang -o conftest -I../../.ext/include/x86_64-darwin11.2.0 -I../.././include -I../.././ext/socket -I../.. -I../../. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT    -O3 -ggdb -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wshorten-64-to-32 -Wimplicit-function-declaration  -pipe conftest.c  -L. -L../.. -L. -fstack-protector -L/usr/local/lib     -lruby-static  -lpthread -ldl -lobjc "
  conftest.c:6:15: warning: implicit declaration of function 'inet_ntop' is invalid in C99 [-Wimplicit-function-declaration]
  int t(void) { inet_ntop(0, (const void *)0, (char *)0, 0); return 0; }
                ^
  1 warning generated.
  checked program was:
  /* begin */
  1: #include "ruby.h"
  2: 
  3: /*top*/
  4: int main(void) {return 0;}
  5: extern int t(void);
  6: int t(void) { inet_ntop(0, (const void *)0, (char *)0, 0); return 0; }

This patch to ext/socket/extconf.rb fixes it:

  -have_func('inet_ntop(0, (const void *)0, (char *)0, 0)') or
  +have_func('inet_ntop(0, (const void *)0, (char *)0, 0)', 'arpa/inet.h') or


=end

----------------------------------------
Bug #5681: Conflcting types for rb_w32_inet_ntop caused by duplicate definition under MinGW
http://redmine.ruby-lang.org/issues/5681

Author: Luis Lavena
Status: Open
Priority: Normal
Assignee: Nobuyoshi Nakada
Category: build
Target version: 
ruby -v: -


MinGW 4.5.2 (TDM builds), building against trunk (r33885) is causing the following error:

<pre>
compiling ../../../../../../ruby/ext/socket/option.c
../../../../../../ruby/ext/socket/option.c:441:1: error: conflicting types for 'rb_w32_inet_ntop'
../../../../../../ruby/include/ruby/win32.h:276:22: note: previous declaration of 'rb_w32_inet_ntop' was here
make[2]: *** [option.o] Error 1
make[2]: Leaving directory `/c/Users/Luis/Projects/oss/oneclick/rubyinstaller/sandbox/ruby19_build/ext/socket'
make[1]: *** [ext/socket/all] Error 2
make[1]: Leaving directory `/c/Users/Luis/Projects/oss/oneclick/rubyinstaller/sandbox/ruby19_build'
make: *** [build-ext] Error 2
</pre>

All this triggered by recent refactoring of ruby/subst.h

Applying the following patch solves the issue:

diff --git a/ext/socket/option.c b/ext/socket/option.c
index 1f334bb..41765f9 100644
--- a/ext/socket/option.c
+++ b/ext/socket/option.c
@@ -436,7 +436,7 @@ inspect_timeval_as_interval(int level, int optname, VALUE data, VALUE ret)
  * it is not distinguishable by the size.
  */

-#ifndef HAVE_INET_NTOP
+#if !defined(HAVE_INET_NTOP) && !defined(_WIN32)
 static char *
 inet_ntop(int af, const void *addr, char *numaddr, size_t numaddr_len)
 {


Can I apply?






-- 
http://redmine.ruby-lang.org