Add kdiff3 recipe

kde-misc/kdiff3/patches/kdiff3-0.9.97.patchset

@@ -0,0 +1,22 @@
+From 5029aa9583f572d2635e56a02f480d1eafb44076 Mon Sep 17 00:00:00 2001
+From: Chris Roberts <cpr420@gmail.com>
+Date: Mon, 25 Nov 2013 23:56:56 -0700
+Subject: Don't use precompiled headers on Haiku
+
+
+diff --git a/src-QT4/kdiff3.pro b/src-QT4/kdiff3.pro
+index 84ddf47..41f9f60 100644
+--- a/src-QT4/kdiff3.pro
++++ b/src-QT4/kdiff3.pro
+@@ -1,7 +1,7 @@
+ TEMPLATE = app
+ # When unresolved items remain during linking: Try adding "shared" in the CONFIG.
+ CONFIG  += qt warn_on thread precompile_header
+-!os2:PRECOMPILED_HEADER = stable.h
++!os2:!haiku:PRECOMPILED_HEADER = stable.h
+ HEADERS  = version.h                     \
+            diff.h                        \
+            difftextwindow.h              \
+-- 
+1.8.3.4
+