try to fix osx build of libwps

Change-Id: I0aeea8fd3f84cecd8b308cbc3ad629fe8e24634e

external/libwps/0001-try-to-fix-build-with-older-clang.patch.1

@@ -0,0 +1,27 @@
+From 01d2ef67b9076fd82ecc6937bdbb306b489fd29e Mon Sep 17 00:00:00 2001
+From: David Tardon <dtardon@redhat.com>
+Date: Mon, 17 Jul 2017 14:34:12 +0200
+Subject: [PATCH] try to fix build with older clang
+
+---
+ src/lib/libwps_internal.h | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/lib/libwps_internal.h b/src/lib/libwps_internal.h
+index 8e91806..8a5fccc 100644
+--- a/src/lib/libwps_internal.h
++++ b/src/lib/libwps_internal.h
+@@ -85,8 +85,8 @@ struct WPS_shared_ptr_noop_deleter
+ 
+ /** fall through attributes */
+ #define WPS_FALLTHROUGH
+-#if defined(__clang__)
+-#  if defined(__has_cpp_attribute) && __has_cpp_attribute(clang::fallthrough)
++#if defined(__clang__) && defined(__has_cpp_attribute)
++#  if __has_cpp_attribute(clang::fallthrough)
+ #    undef WPS_FALLTHROUGH
+ #    define WPS_FALLTHROUGH [[clang::fallthrough]]
+ #  endif
+-- 
+2.13.0
+

external/libwps/UnpackedTarball_libwps.mk

@@ -35,6 +35,7 @@ endif
 
 $(eval $(call gb_UnpackedTarball_add_patches,libwps, \
     external/libwps/iOS.patch.0 \
+    external/libwps/0001-try-to-fix-build-with-older-clang.patch.1 \
 ))
 
 # vim: set noet sw=4 ts=4: