Commit: Master
Linux 4.15.0-75-generic #85-Ubuntu

I tried making with below steps but end up with (WPEBACKEND_FDO_INCLUDE_DIRS WPEBACKEND_FDO_LIBRARIES)

$ ./Tools/Scripts/update-webkitwpe-libs
$ ./Tools/gtk/install-dependencies
$ ./Tools/Scripts/build-jsc --gtk --makeargs="-j4"

+  cmake -DPORT="GTK" -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DCMAKE_BUILD_TYPE=Release -G Ninja -DDEVELOPER_MODE=ON  -DENABLE_FTL_JIT=ON "/home/input0/Downloads/webkit-master"
-- The CMake build type is: Release
-- Performing Test C_COMPILER_SUPPORTS_-fdiagnostics-color=always
-- Performing Test C_COMPILER_SUPPORTS_-fdiagnostics-color=always - Success
-- Performing Test CXX_COMPILER_SUPPORTS_-fdiagnostics-color=always
-- Performing Test CXX_COMPILER_SUPPORTS_-fdiagnostics-color=always - Success
-- Checking for module 'gtk+-quartz-3.0'
--   No package 'gtk+-quartz-3.0' found
-- Found the following HarfBuzz libraries:
--  HarfBuzz (required): /usr/lib/x86_64-linux-gnu/libharfbuzz.so
--  ICU (required): /usr/lib/x86_64-linux-gnu/libharfbuzz-icu.so
-- Found the following ICU libraries:
--   data (required)
--   i18n (required)
--   uc (required)
-- Could NOT find WPEBACKEND_FDO (missing: WPEBACKEND_FDO_INCLUDE_DIRS WPEBACKEND_FDO_LIBRARIES) 
CMake Error at Source/cmake/OptionsGTK.cmake:224 (message):
  WPEBackend-fdo is required for USE_WPE_RENDERER
Call Stack (most recent call first):
  Source/cmake/WebKitCommon.cmake:56 (include)
  CMakeLists.txt:169 (include)

Can someone help me to resolve this.