1 files changed, 12 insertions, 1 deletions
diff --git a/win32/mkexports.rb b/win32/mkexports.rb
index e96f9339d0..86ba979ddf 100755
--- a/win32/mkexports.rb
+++ b/win32/mkexports.rb
@@ -149,7 +149,7 @@ class Exports::Cygwin < Exports
   end
 end
 
-class Exports::Mingw < Exports::Cygwin
+class Exports::Mingw32 < Exports::Cygwin
   def each_export(objs)
     super
     yield "strcasecmp", "_stricmp"
@@ -157,6 +157,17 @@ class Exports::Mingw < Exports::Cygwin
   end
 end
 
+class Exports::Mingw64 < Exports::Cygwin
+  def each_export(objs)
+    objdump(objs) do |l|
+      next if /@.*@/ =~ l
+      yield $2, !$1 if /\s(?:(T)|[[:upper:]])\s_?((?!Init_|.*_threadptr_|DllMain[@\n]).*)$/ =~ l
+    end
+    yield "strcasecmp", "_stricmp"
+    yield "strncasecmp", "_strnicmp"
+  end
+end
+
 END {
   exports = Exports.extract(ARGV)
   Exports.output {|f| f.puts(*exports)}