old_contents: {
  	'repo_type' : 'git',
  	'url' : 'https://github.com/google/shaderc.git',
  	'depth_git': False,
  	'branch': '3f24b6829b3e7da9c97b779402311ece81264ca8', # libshaderc_spvc/src/spvc.cc:71:33: error: returning reference to temporary [-Werror=return-local-addr]
  	'configure_options' :
  		'cmake .. {cmake_prefix_options} '
  		'-DCMAKE_BUILD_TYPE=Release '
  		'-DCMAKE_INSTALL_PREFIX={target_prefix} '
  		'-DSHADERC_SKIP_INSTALL=ON '
  		'-DSHADERC_SKIP_TESTS=ON '
  		'-DSHADERC_ENABLE_SPVC=ON '
  	,
  	'source_subfolder' : '_build',
  	'conf_system' : 'cmake',
  	'needs_make_install' : False,
  	'build_options' : '',
  	'run_post_patch' : [
  		'!SWITCHDIR|../third_party',
  		'ln -snf {inTreePrefix}/glslang/ glslang',
  		'ln -snf {inTreePrefix}/spirv-headers/ spirv-headers',
  		'ln -snf {inTreePrefix}/spirv-tools/ spirv-tools',
  		'ln -snf {inTreePrefix}/spirv-cross spirv-cross',
  		'!SWITCHDIR|../_build',
  		"sed -i 's/add_subdirectory(examples)/#add_subdirectory(examples)/g' ../CMakeLists.txt",
  	],
  	'run_post_build' : [
  		'cp -rv "../libshaderc/include/shaderc" "{target_prefix}/include/"',
  		'cp -rv "../libshaderc_util/include/libshaderc_util" "{target_prefix}/include/"',
  		'cp -rv "libshaderc/libshaderc_combined.a" "{target_prefix}/lib/libshaderc_combined.a"',
  	],
  	'depends_on' : ['glslang', 'spirv-headers', 'spirv-tools', 'spirv-cross', ],
  	'_info' : { 'version' : None, 'fancy_name' : 'shaderc' },
  }
new_contents: {
  	'repo_type' : 'git',
  	'url' : 'https://github.com/google/shaderc.git',
  	# 'depth_git': False,
  	# 'branch': '3f24b6829b3e7da9c97b779402311ece81264ca8', # libshaderc_spvc/src/spvc.cc:71:33: error: returning reference to temporary [-Werror=return-local-addr]
  	'configure_options' :
  		'cmake .. {cmake_prefix_options} '
  		'-DCMAKE_BUILD_TYPE=Release '
  		'-DCMAKE_INSTALL_PREFIX={target_prefix} '
  		'-DSHADERC_SKIP_INSTALL=ON '
  		'-DSHADERC_SKIP_TESTS=ON '
  		'-DSHADERC_ENABLE_SPVC=ON '
  	,
  	'source_subfolder' : '_build',
  	'conf_system' : 'cmake',
  	'needs_make_install' : False,
  	'build_options' : '',
  	'run_post_patch' : [
  		'!SWITCHDIR|../third_party',
  		'ln -snf {inTreePrefix}/glslang/ glslang',
  		'ln -snf {inTreePrefix}/spirv-headers/ spirv-headers',
  		'ln -snf {inTreePrefix}/spirv-tools/ spirv-tools',
  		'ln -snf {inTreePrefix}/spirv-cross spirv-cross',
  		'!SWITCHDIR|../_build',
  		"sed -i 's/add_subdirectory(examples)/#add_subdirectory(examples)/g' ../CMakeLists.txt",
  	],
  	'run_post_build' : [
  		'cp -rv "../libshaderc/include/shaderc" "{target_prefix}/include/"',
  		'cp -rv "../libshaderc_util/include/libshaderc_util" "{target_prefix}/include/"',
  		'cp -rv "libshaderc/libshaderc_combined.a" "{target_prefix}/lib/libshaderc_combined.a"',
  	],
  	'depends_on' : ['glslang', 'spirv-headers', 'spirv-tools', 'spirv-cross', ],
  	'_info' : { 'version' : None, 'fancy_name' : 'shaderc' },
  }
subject: build from git master again