Thrift: MinGW port.

Summary:
Todd Berman from imeem has contributed a patch that allows
the Thrift compiler to be built with MinGW and run on Windows.

Reviewed By: mcslee

Test Plan:
Built the compiler from scratch on Linux.
If my changes messed up the MinGW build, I'm sure Todd will yell at me.

Revert Plan: ok


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@665420 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/compiler/cpp/Makefile.am b/compiler/cpp/Makefile.am
index 921a6a9..2c0368c 100644
--- a/compiler/cpp/Makefile.am
+++ b/compiler/cpp/Makefile.am
@@ -23,6 +23,7 @@
                  src/generate/t_st_generator.cc \
                  src/globals.h \
                  src/main.h \
+                 src/platform.h \
                  src/md5.h \
                  src/parse/t_doc.h \
                  src/parse/t_type.h \