don't enable -Werror in ft-index

storage/tokudb/ft-index/cmake_modules/TokuSetupCompiler.cmake

@@ -182,9 +182,9 @@ if (NOT CMAKE_CXX_COMPILER_ID STREQUAL Clang)
   set_cflags_if_supported(-Wcast-align)
 endif ()
 
-## always want these
-set(CMAKE_C_FLAGS "-Wall -Werror ${CMAKE_C_FLAGS}")
-set(CMAKE_CXX_FLAGS "-Wall -Werror ${CMAKE_CXX_FLAGS}")
+## never want these
+set(CMAKE_C_FLAGS "-Wno-error ${CMAKE_C_FLAGS}")
+set(CMAKE_CXX_FLAGS "-Wno-error ${CMAKE_CXX_FLAGS}")
 
 ## need to set -stdlib=libc++ to get real c++11 support on darwin
 if (APPLE)