[ekiga] [windows] Fix compile error with mingw32 with newer ptlib

[Eugen Dedu <ededu src gnome org>]

commit 59172a82c9594eec21192ce4b6e64b1be590662d
Author: Eugen Dedu <Eugen Dedu pu-pm univ-fcomte fr>
Date:   Sat Mar 31 21:43:40 2012 +0200

    [windows] Fix compile error with mingw32 with newer ptlib

 win32/Makefile |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/win32/Makefile b/win32/Makefile
index da4f119..54765ce 100644
--- a/win32/Makefile
+++ b/win32/Makefile
@@ -430,6 +430,11 @@ endif
 	cd $(PTLIB_DIR); for i in $(EKIGA_DIR)/win32/diff/ptlib_*; do \
 		test "`basename $$i`" != 'ptlib_*' && (patch -p1 <$$i || exit 1) ;\
 	done; true
+ifeq ($(MINGW32), 1)
+	# mingw32 wrongly defines DnsSectionAdditional
+	sed -i -e 's#\#include <ntverp.h># #g' $(PTLIB_DIR)/include/ptclib/pdns.h
+	sed -i -e 's#enum { DnsSectionAdditional = DnsSectionAddtional };# #g' $(PTLIB_DIR)/include/ptclib/pdns.h
+endif
 	touch $@
 
 $(PTLIB_DIR)/config.status: binaries $(PTLIB_DIR)/configure