Chrome Version       : 58.0.3013 58.0.3018.3 58.0.3026.3
OS Version: Gentoo Linux
URLs (if applicable) : https://github.com/gentoo/gentoo/pull/4069
Other browsers tested: N/A Chromium build issue
  Add OK or FAIL after other browsers where you have tested this issue:
     Safari 5:
  Firefox 4.x:
     IE 7/8/9:

What steps will reproduce the problem?
1. emerge chromium

What is the expected result?
Nice fresh chromium build :D

What happens instead of that?

Build error:

[9973/25196] ../../../../../../../../../usr/bin/clang -MMD -MF clang_x64/obj/third_party/brotli/common/dictionary.o.d -DV8_DEPRECATION_WARNINGS -DUSE_UDEV -DUI_COMPOSITOR_IMAGE_TRANSPORT -DUSE_AURA=1 -DUSE_PANGO=1 -DUSE_CAIRO=1 -DUSE_GLIB=1 -DUSE_NSS_CERTS=1 -DUSE_X11=1 -DDISABLE_NACL -DFULL_SAFE_BROWSING -DSAFE_BROWSING_CSD -DSAFE_BROWSING_DB_LOCAL -DCHROMIUM_BUILD -DENABLE_MEDIA_ROUTER=1 -DCR_CLANG_REVISION="289944-2" -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -DNDEBUG -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0 -I../.. -Iclang_x64/gen -I../../third_party/brotli/include -fno-strict-aliasing --param=ssp-buffer-size=4 -fstack-protector -Wno-builtin-macro-redefined -D__DATE__= -D__TIME__= -D__TIMESTAMP__= -funwind-tables -fPIC -pipe -fcolor-diagnostics -fdebug-prefix-map=/var/tmp/portage/www-client/chromium-58.0.3018.3/work/chromium-58.0.3018.3=. -m64 -march=x86-64 -pthread -Wall -Wextra -Wno-missing-field-initializers -Wno-unused-parameter -Wno-c++11-narrowing -Wno-covered-switch-default -Wno-deprecated-register -Wno-unneeded-internal-declaration -Wno-inconsistent-missing-override -Wno-shift-negative-value -Wno-undefined-var-template -Wno-nonportable-include-path -Wno-address-of-packed-member -Wno-block-capture-autoreleasing -O2 -fno-ident -fdata-sections -ffunction-sections -g0 -fvisibility=hidden -Wheader-hygiene -Wstring-conversion -Wtautological-overlap-compare -c ../../third_party/brotli/common/dictionary.c -o clang_x64/obj/third_party/brotli/common/dictionary.o
FAILED: clang_x64/obj/third_party/brotli/common/dictionary.o
../../../../../../../../../usr/bin/clang -MMD -MF clang_x64/obj/third_party/brotli/common/dictionary.o.d -DV8_DEPRECATION_WARNINGS -DUSE_UDEV -DUI_COMPOSITOR_IMAGE_TRANSPORT -DUSE_AURA=1 -DUSE_PANGO=1 -DUSE_CAIRO=1 -DUSE_GLIB=1 -DUSE_NSS_CERTS=1 -DUSE_X11=1 -DDISABLE_NACL -DFULL_SAFE_BROWSING -DSAFE_BROWSING_CSD -DSAFE_BROWSING_DB_LOCAL -DCHROMIUM_BUILD -DENABLE_MEDIA_ROUTER=1 -DCR_CLANG_REVISION="289944-2" -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -DNDEBUG -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0 -I../.. -Iclang_x64/gen -I../../third_party/brotli/include -fno-strict-aliasing --param=ssp-buffer-size=4 -fstack-protector -Wno-builtin-macro-redefined -D__DATE__= -D__TIME__= -D__TIMESTAMP__= -funwind-tables -fPIC -pipe -fcolor-diagnostics -fdebug-prefix-map=/var/tmp/portage/www-client/chromium-58.0.3018.3/work/chromium-58.0.3018.3=. -m64 -march=x86-64 -pthread -Wall -Wextra -Wno-missing-field-initializers -Wno-unused-parameter -Wno-c++11-narrowing -Wno-covered-switch-default -Wno-deprecated-register -Wno-unneeded-internal-declaration -Wno-inconsistent-missing-override -Wno-shift-negative-value -Wno-undefined-var-template -Wno-nonportable-include-path -Wno-address-of-packed-member -Wno-block-capture-autoreleasing -O2 -fno-ident -fdata-sections -ffunction-sections -g0 -fvisibility=hidden -Wheader-hygiene -Wstring-conversion -Wtautological-overlap-compare -c ../../third_party/brotli/common/dictionary.c -o clang_x64/obj/third_party/brotli/common/dictionary.o
../../../../../../../../../usr/bin/clang: No such file or directory


Please provide any additional information below. Attach a screenshot if
possible.

I can work around this by seding toolchain.ninja:

sed -i "s:../../../../../../../../../usr/bin/clang:clang:g" out/Release/clang_x64/toolchain.ninja

What I'm trying to do is fix it so the correct patch is used in toolchain.ninja