Bug 757060 - redit fails to compile on mingw due to wmain linkage error r=glandium

xulrunner/tools/redit/Makefile.in

@@ -28,6 +28,11 @@ DEFINES += -DWIN32_LEAN_AND_MEAN \
 LIBS = \
   $(XPCOM_STANDALONE_GLUE_LDOPTS) \
   $(NULL)
+
+ifdef GNU_CC
+WIN32_EXE_LDFLAGS = -municode
+endif
+
 endif
 
 include $(topsrcdir)/config/rules.mk

xulrunner/tools/redit/redit.cpp

@@ -96,6 +96,9 @@ namespace {
   typedef Scoped<ScopedResourceUpdateTraits> ScopedResourceUpdate;
 };
 
+#ifdef __MINGW32__
+extern "C"
+#endif
 int
 wmain(int argc, wchar_t** argv)
 {