From 9f7fde8d86a4d273be82804d09be82d822664729 Mon Sep 17 00:00:00 2001 From: nobu Date: Wed, 13 Aug 2008 15:43:55 +0000 Subject: * configure.in (rb_cv_gcc_function_alias): checks alias attribute. * string.c (alias_func): replaced with RUBY_ALIAS_FUNCTION. git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@18589 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- configure.in | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'configure.in') diff --git a/configure.in b/configure.in index bd38c2b8b..1ad99ca5e 100644 --- a/configure.in +++ b/configure.in @@ -445,6 +445,23 @@ RUBY_FUNC_ATTRIBUTE(stdcall) RUBY_FUNC_ATTRIBUTE(cdecl) RUBY_FUNC_ATTRIBUTE(fastcall) +if test "$GCC" = yes; then + AC_CACHE_CHECK([for function alias], [rb_cv_gcc_function_alias], + [rb_cv_gcc_function_alias=no + for a in alias weak,alias; do + AC_TRY_LINK([void foo(void) {} + void bar(void) __attribute__(($a("foo")));], [bar()], + [rb_cv_gcc_function_alias=$a; break]) + done]) + if test "$rb_cv_gcc_function_alias" = no; then + AC_DEFINE([RUBY_ALIAS_FUNCTION(old_prot, new_name, args)], + [VALUE old_prot {return new_name args;}]) + else + AC_DEFINE_UNQUOTED([RUBY_ALIAS_FUNCTION(old_prot, new_name, args)], + [VALUE old_prot __attribute__(($rb_cv_gcc_function_alias(@%:@new_name)));]) + fi +fi + AC_CACHE_CHECK([for RUBY_EXTERN], rb_cv_ruby_extern, [rb_cv_ruby_extern=no for mac in "__attribute__((dllimport))" "__declspec(dllimport)"; do -- cgit