configure.in: revert macro names

* configure.in (FUNC_STDCALL, FUNC_CDECL, FUNC_FASTCALL): set
  macro names explicitly to the old names, which are accidentally
  changed at r54985, for backward compatibilities.
  fiddle also depends on these names to fallback to ANSI names.
  [ruby-core:75494] [Bug #12377]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55015 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 7 insertions, 0 deletions

diff --git a/test/fiddle/test_handle.rb b/test/fiddle/test_handle.rb
index fecf366f4f..6ac957a474 100644
--- a/test/fiddle/test_handle.rb
+++ b/test/fiddle/test_handle.rb
@@ -182,5 +182,12 @@ module Fiddle
     def test_no_memory_leak
       assert_no_memory_leak(%w[-W0 -rfiddle.so], '', '100_000.times {Fiddle::Handle.allocate}; GC.start', rss: true)
     end
+
+    if /cygwin|mingw|mswin/ =~ RUBY_PLATFORM
+      def test_fallback_to_ansi
+        k = Fiddle::Handle.new("kernel32.dll")
+        refute_nil(k["GetFileAttributes"])
+      end
+    end
   end
 end if defined?(Fiddle)