$NetBSD: patch-CMakeLists.txt,v 1.1 2015/11/16 13:33:14 nros Exp $
This project only uses C.
--- CMakeLists.txt.orig	2015-11-16 11:22:30.000000000 +0000
+++ CMakeLists.txt
@@ -15,7 +15,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 cmake_minimum_required(VERSION 2.8.12)
-project(gimp-webp)
+project(gimp-webp C)
 
 # Find the packages that contain the Gimp/WebP headers and libraries
 find_package(PkgConfig REQUIRED)