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Windows: Clarify custom toolchain env variable requirements (issue #1403)

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This commit is contained in:
Marshall Greenblatt
2016-08-26 13:08:37 +03:00
parent d4663b2b4c
commit ae452e5348
2 changed files with 59 additions and 33 deletions
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60
tools/gclient_hook.py
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@ -52,20 +52,56 @@ if platform == 'windows':
# but not installed (e.g. via a custom toolchain) set the following
# environment variables:
#
# o Enable use of a custom toolchain on Windows.
#
# set WIN_CUSTOM_TOOLCHAIN=1
# set VS_VERSION=<VS version>
#
# o Used by tools/msvs_env.bat to configure the MSVS tools environment.
# Should be set to "none" because VC variables for CEF will be set via
# INCLUDE/LIB/PATH.
# TODO(cef): Make INCLUDE/LIB/PATH values optional when
# "%VS_ROOT%\VC\vcvarsall.bat" exists (use those values instead).
#
# set CEF_VCVARS=none
#
# o Used by the following scripts:
# (a) build/vs_toolchain.py SetEnvironmentAndGetRuntimeDllDirs when
# determining whether to copy VS runtime binaries to the output directory.
# If GYP_MSVS_OVERRIDE_PATH exists then binaries will not be copied and
# should instead be discoverable via the PATH env variable.
# (b) build/toolchain/win/setup_toolchain.py _LoadToolchainEnv when
# writing environment.* files that specify INCLUDE/LIB/PATH values. If
# "%GYP_MSVS_OVERRIDE_PATH%\VC\vcvarsall.bat" exists then environment
# variables will be derived from there and the specified INCLUDE/LIB/PATH
# values, if any, will be ignored by Chromium. If this file does not exist
# then the INCLUDE/LIB/PATH values are also required by Chromium.
# TODO(cef): Rename to VS_PATH and VS_VERSION after Chromium cleans up GYP
# dependencies.
#
# set GYP_MSVS_OVERRIDE_PATH=<VS root directory>
# set GYP_MSVS_VERSION=<VS version>
#
# o Used to configure GN arguments in this script.
#
# set VS_CRT_ROOT=<VS CRT root directory>
# set VS_ROOT=<VS root directory>
# set SDK_ROOT=<Platform SDK root directory>
#
# o Used by various scripts as described above.
#
# set INCLUDE=<VS include paths>
# set LIB=<VS library paths>
# set PATH=<VS executable paths>
#
# See tools/depot_tools/win_toolchain/package_from_installed.py for an example
# packaging script along with required directory contents and INCLUDE/LIB/PATH
# values.
#
if bool(int(os.environ.get('WIN_CUSTOM_TOOLCHAIN', '0'))):
required_vars = [
'VS_VERSION',
'CEF_VCVARS',
'GYP_MSVS_OVERRIDE_PATH',
'GYP_MSVS_VERSION',
'VS_CRT_ROOT',
'VS_ROOT',
'SDK_ROOT',
'INCLUDE',
'LIB',
@ -75,21 +111,9 @@ if platform == 'windows':
if not var in os.environ.keys():
raise Exception('%s environment variable must be set' % var)
# VC variables for CEF will be set via INCLUDE/LIB/PATH.
# TODO(cef): Make INCLUDE/PATH/LIB values optional when
# "%VS_ROOT%\VC\vcvarsall.bat" exists (use those values instead).
os.environ['CEF_VCVARS'] = 'none'
# Checked in build/toolchain/win/setup_toolchain.py _LoadToolchainEnv.
# If "%VS_ROOT%\VC\vcvarsall.bat" exists then environment variables will
# be derived from there and the specified INCLUDE/LIB/PATH values, if any,
# will be ignored by Chromium. If this file does not exist then the
# INCLUDE/LIB/PATH values are also required by Chromium.
os.environ['GYP_MSVS_OVERRIDE_PATH'] = os.environ['VS_ROOT']
# Windows custom toolchain requirements. See comments in gn_args.py.
gn_args['visual_studio_path'] = os.environ['VS_ROOT']
gn_args['visual_studio_version'] = os.environ['VS_VERSION']
gn_args['visual_studio_path'] = os.environ['GYP_MSVS_OVERRIDE_PATH']
gn_args['visual_studio_version'] = os.environ['GYP_MSVS_VERSION']
gn_args['visual_studio_runtime_dirs'] = os.environ['VS_CRT_ROOT']
gn_args['windows_sdk_path'] = os.environ['SDK_ROOT']