message: Explicitly reauire dump functionality in llvm build.
diff: @@ -295,6 +295,8 @@ def build_LLVM(version_LLVM, revision, folder, tarball, debug, selfbuild, extra,
  "cmake -G Unix\ Makefiles" + " -DCMAKE_EXPORT_COMPILE_COMMANDS=ON" +
  " -DCMAKE_INSTALL_PREFIX=" + llvm_home + "/" + LLVM_BIN_selfbuild +
  " -DCMAKE_BUILD_TYPE=Release" +
  + " -DCMAKE_C_FLAGS=-DLLVM_ENABLE_DUMP" +
  + " -DCMAKE_CXX_FLAGS=-DLLVM_ENABLE_DUMP" +
  " -DLLVM_ENABLE_ASSERTIONS=ON" +
  ((" -DGCC_INSTALL_PREFIX=" + gcc_toolchain_path) if gcc_toolchain_path != "" else "") +
  ((" -DCMAKE_C_COMPILER=" + gcc_toolchain_path+"/bin/gcc") if gcc_toolchain_path != "" else "") +
  @@ -332,6 +334,8 @@ def build_LLVM(version_LLVM, revision, folder, tarball, debug, selfbuild, extra,
  selfbuild_compiler +
  " -DCMAKE_INSTALL_PREFIX=" + llvm_home + "/" + LLVM_BIN +
  " -DCMAKE_BUILD_TYPE=Release" +
  + " -DCMAKE_C_FLAGS=-DLLVM_ENABLE_DUMP" +
  + " -DCMAKE_CXX_FLAGS=-DLLVM_ENABLE_DUMP" +
  " -DLLVM_ENABLE_ASSERTIONS=ON" +
  ((" -DGCC_INSTALL_PREFIX=" + gcc_toolchain_path) if gcc_toolchain_path != "" else "") +
  ((" -DCMAKE_C_COMPILER=" + gcc_toolchain_path+"/bin/gcc") if gcc_toolchain_path != "" and selfbuild_compiler == "" else "") +
  @@ -350,8 +354,13 @@ def build_LLVM(version_LLVM, revision, folder, tarball, debug, selfbuild, extra,
  from_validation)
  else:
  try_do_LLVM("configure release version ",
  - 'cmake -G "Visual Studio 14" -DCMAKE_INSTALL_PREFIX="..\\'+ LLVM_BIN +
  - '" -DLLVM_LIT_TOOLS_DIR="C:\\gnuwin32\\bin" ..\\' + LLVM_SRC,
  + 'cmake -G "Visual Studio 14" -DCMAKE_INSTALL_PREFIX="..\\'+ LLVM_BIN + '" ' +
  + ' -DCMAKE_BUILD_TYPE=Release' +
  + ' -DCMAKE_C_FLAGS=-DLLVM_ENABLE_DUMP' +
  + ' -DCMAKE_CXX_FLAGS=-DLLVM_ENABLE_DUMP' +
  + ' -DLLVM_ENABLE_ASSERTIONS=ON' +
  + ' -DLLVM_TARGETS_TO_BUILD=X86' +
  + ' -DLLVM_LIT_TOOLS_DIR="C:\\gnuwin32\\bin" ..\\' + LLVM_SRC,
  from_validation)
  else:
  if version_LLVM not in LLVM_configure_capable:
  @@ -360,6 +369,8 @@ def build_LLVM(version_LLVM, revision, folder, tarball, debug, selfbuild, extra,
  selfbuild_compiler +
  " -DCMAKE_INSTALL_PREFIX=" + llvm_home + "/" + LLVM_BIN +
  " -DCMAKE_BUILD_TYPE=Debug" +
  + " -DCMAKE_C_FLAGS=-DLLVM_ENABLE_DUMP" +
  + " -DCMAKE_CXX_FLAGS=-DLLVM_ENABLE_DUMP" +
  " -DLLVM_ENABLE_ASSERTIONS=ON" +
  ((" -DGCC_INSTALL_PREFIX=" + gcc_toolchain_path) if gcc_toolchain_path != "" else "") +
  ((" -DCMAKE_C_COMPILER=" + gcc_toolchain_path+"/bin/gcc") if gcc_toolchain_path != "" and selfbuild_compiler == "" else "") +
  