Index: CMakeLists.txt
--- CMakeLists.txt.orig
+++ CMakeLists.txt
@@ -28,7 +28,6 @@ endif()
 
 if(NOT MSVC)
   add_definitions(-Wall)
-  add_definitions(-Werror)
   add_definitions(-Wsign-compare)
   add_definitions(-Wconversion)
   add_definitions(-Wno-sign-conversion)