diff --git a/srcpkgs/swiften/patches/fix-cross-build.patch b/srcpkgs/swiften/patches/fix-cross-build.patch
new file mode 100644
index 00000000000..72dc820c884
--- /dev/null
+++ b/srcpkgs/swiften/patches/fix-cross-build.patch
@@ -0,0 +1,19 @@
+--- 3rdParty/LibMiniUPnPc/SConscript.orig	2016-09-07 10:29:12.251340787 +0200
++++ 3rdParty/LibMiniUPnPc/SConscript	2016-09-07 10:29:49.165342691 +0200
+@@ -46,11 +46,11 @@
+ 		if myenv["PLATFORM"] == "win32":
+ 			myenv.Append(CCFLAGS = ["-DWIN32", "-D_WIN32_WINNT=0x0501"])
+ 
+-		if myenv["PLATFORM"] != "win32" and myenv["PLATFORM"] != "darwin":
+-			conf = Configure(conf_env)
+-			if conf.CheckTypeSize("struct ip_mreqn", includes="#include <netinet/in.h>") == 0:
+-				myenv.Append(CCFLAGS = ["-DNEED_STRUCT_IP_MREQN"])
+-			conf.Finish()
++		#if myenv["PLATFORM"] != "win32" and myenv["PLATFORM"] != "darwin":
++		#	conf = Configure(conf_env)
++		#	if conf.CheckTypeSize("struct ip_mreqn", includes="#include <netinet/in.h>") == 0:
++		#		myenv.Append(CCFLAGS = ["-DNEED_STRUCT_IP_MREQN"])
++		#	conf.Finish()
+ 
+ 		myenv.WriteVal("src/miniupnpc/miniupnpcstrings.h", myenv.Value(
+ """