UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.75 Safari/537.36

Steps to reproduce the problem:
1. Build chromium release version 50.0.2661.75 from source on OS X 10.11
2. 
3. 

What is the expected behavior?
Successfully build like the previous release.

What went wrong?
FAILED: ./gyp-mac-tool package-framework 'Chromium Framework.framework' A && (export BUILT_FRAMEWORKS_DIR=/Volumes/hd2/src/chromium/src/out/Release; export BUILT_PRODUCTS_DIR=/Volumes/hd2/src/chromium/src/out/Release; export CONFIGURATION=Release; export CONTENTS_FOLDER_PATH="Chromium Framework.framework/Versions/A"; export DYLIB_INSTALL_NAME_BASE=@executable_path/../Versions/50.0.2661.75; export EXECUTABLE_NAME="Chromium Framework"; export EXECUTABLE_PATH="Chromium Framework.framework/Versions/A/Chromium Framework"; export FULL_PRODUCT_NAME="Chromium Framework.framework"; export INFOPLIST_PATH="Chromium Framework.framework/Versions/A/Resources/Info.plist"; export LD_DYLIB_INSTALL_NAME="@executable_path/../Versions/50.0.2661.75/Chromium Framework.framework/Chromium Framework"; export MACH_O_TYPE=mh_dylib; export PRODUCT_NAME="Chromium Framework"; export PRODUCT_TYPE=com.apple.product-type.framework; export SDKROOT=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk; export SRCROOT=/Volumes/hd2/src/chromium/src/out/Release/../../chrome; export SOURCE_ROOT="${SRCROOT}"; export TARGET_BUILD_DIR=/Volumes/hd2/src/chromium/src/out/Release; export TEMP_DIR="${TMPDIR}"; export UNLOCALIZED_RESOURCES_FOLDER_PATH="Chromium Framework.framework/Versions/A/Resources"; export WRAPPER_NAME="Chromium Framework.framework"; export XCODE_VERSION_ACTUAL=0730; (cd ../../chrome && ../build/mac/tweak_info_plist.py "--breakpad=1" "--breakpad_uploads=0" "--keystone=0" "--scm=1" "--branding=Chromium" && ln -fns Versions/Current/Libraries "${BUILT_PRODUCTS_DIR}/${WRAPPER_NAME}/Libraries" && tools/build/mac/verify_order _ChromeMain "${BUILT_PRODUCTS_DIR}/${EXECUTABLE_PATH}"); G=$?; ((exit $G) || rm -rf 'Chromium Framework.framework') && exit $G) && touch 'Chromium Framework.framework'
nm: Unknown command line argument '-fgjn'.  Try: '/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/nm -help'
nm: Did you mean '-f'?
tools/build/mac/verify_order: no symbols in /Volumes/hd2/src/chromium/src/out/Release/Chromium Framework.framework/Versions/A/Chromium Framework
ninja: build stopped: subcommand failed.

Did this work before? Yes When building 49.0.2623.75 (64-bit)

Chrome version: 50.0.2661.75  Channel: stable
OS Version: OS X 10.11.4
Flash Version: 21.0.0.216