lite.rb in mkmf-lite-0.2.5

- old
+ new

@@ -10,11 +10,11 @@
 end
 
 module Mkmf
   module Lite
     # The version of the mkmf-lite library
-    MKMF_LITE_VERSION = '0.2.4'
+    MKMF_LITE_VERSION = '0.2.5'
 
     @@cpp_command = RbConfig::CONFIG['CC'] || RbConfig::CONFIG['CPP']
     @@cpp_srcfile = 'conftest.c'
 
     if File::ALT_SEPARATOR && RbConfig::CONFIG['CPP'] =~ /^cl/
@@ -39,9 +39,14 @@
         when /sunos|solaris|hpux/i
           @@cpp_command = File.which('cc') || File.which('gcc')
         else
           @@cpp_command = 'gcc'
       end
+    end
+
+    # Ruby installer can't be trusted to set a sane value
+    if RbConfig::CONFIG['host_os'] =~ /mingw/i
+      @@cpp_command = File.which('gcc')
     end
 
     # Check for the presence of the given +header+ file. You may optionally
     # provide a list of directories to search.
     #