gistfile1.txt

builder for '/nix/store/5a00rqavnjk83naq1h6mgmbdgc1v1f0r-webkitgtk-2.20.0.drv' failed with exit code 1; last 10 log lines:
                   from ../Source/JavaScriptCore/heap/Heap.h:33,
                   from ../Source/JavaScriptCore/heap/DeferGC.h:29,
                   from ../Source/JavaScriptCore/runtime/ConcurrentJSLock.h:28,
                   from ../Source/JavaScriptCore/bytecode/ArrayProfile.h:28,
                   from ../Source/JavaScriptCore/llint/LLIntOffsetsExtractor.cpp:28:
  ../Source/JavaScriptCore/API/JSHeapFinalizerPrivate.h:29:41: fatal error: JavaScriptCore/JSContextRef.h: No such file or directory
   #include <JavaScriptCore/JSContextRef.h>
                                           ^
  compilation terminated.
  ninja: build stopped: subcommand failed.

I have the same problem. Did you solve it?