From: "ko1 (Koichi Sasada)" Date: 2013-02-18T09:04:35+09:00 Subject: [ruby-core:52417] [ruby-trunk - Bug #7478] Do not include vararg.h - always include stdarg.h Issue #7478 has been updated by ko1 (Koichi Sasada). Assignee set to nobu (Nobuyoshi Nakada) ---------------------------------------- Bug #7478: Do not include vararg.h - always include stdarg.h https://bugs.ruby-lang.org/issues/7478#change-36472 Author: funny_falcon (Yura Sokolov) Status: Feedback Priority: Low Assignee: nobu (Nobuyoshi Nakada) Category: core Target version: 1.9.3 ruby -v: ruby 1.9.3p327 (2012-11-10 revision 37606) [x86_64-linux] Cause : https://gist.github.com/4172330 It seems that stdarg.h is included in many separate C files unconditionally: array.c, class.c, error.c, sprintf.c, include/ruby/ruby.h, include/ruby/encoding.h - all includes stdarg.h without checking for HAVE_STDARG_PROTOTYPES So that, why there is check in include/ruby/intern.h, vm_core.h, vsnprintf.c (and may be somewhere else) -- http://bugs.ruby-lang.org/