Added testing support for cross-MinGW builds.

This adds a build_config that will cross-build a Windows executable
using the MinGW cross-compiler and will also run the unit (i.e.
'rake test') using Wine.

For this to work, I made some modifications to the underlying test
scripts as well as some minor changes to a couple of the tests
themselves.

1 files changed, 16 insertions, 2 deletions

diff --git a/test/bintest.rb b/test/bintest.rb
index a6888c9fb..773d61edc 100644
--- a/test/bintest.rb
+++ b/test/bintest.rb
@@ -3,13 +3,27 @@ require 'test/assert.rb'
 
 GEMNAME = ""
 
-def cmd(s)
+def cmd_list(s)
   path = s == "mrbc" ? ENV['MRBCFILE'] : "#{ENV['BUILD_DIR']}/bin/#{s}"
   path = path.sub(/\.exe\z/, "")
   if /mswin(?!ce)|mingw|bccwin/ =~ RbConfig::CONFIG['host_os']
     path = "#{path}.exe".tr("/", "\\")
   end
-  path
+
+  path_list = [path]
+
+  emu = ENV['EMULATOR']
+  path_list.unshift emu if emu && !emu.empty?
+
+  path_list
+end
+
+def cmd(s)
+  return cmd_list(s).join(' ')
+end
+
+def cmd_bin(s)
+  return cmd_list(s).pop
 end
 
 def shellquote(s)