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From b6ba1f2b1feda529eca20fb8980f7c6c52397df6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny@gentoo.org>
Date: Thu, 10 May 2018 08:01:08 +0200
Subject: [PATCH] posix: Also force common toolchain vars for Gentoo
---
SCons/Platform/posix.py | 21 +++++++++++++++++++++
SCons/Tool/cc.py | 3 ++-
SCons/Tool/cxx.py | 3 ++-
SCons/Tool/link.py | 3 ++-
4 files changed, 27 insertions(+), 3 deletions(-)
diff --git a/src/SCons/Platform/posix.py b/src/SCons/Platform/posix.py
index 37cd2377f..1246781de 100644
--- a/src/SCons/Platform/posix.py
+++ b/src/SCons/Platform/posix.py
@@ -33,6 +33,7 @@ import subprocess
from SCons.Platform import TempFileMunge
from SCons.Platform.virtualenv import ImportVirtualenv
from SCons.Platform.virtualenv import ignore_virtualenv, enable_virtualenv
+import SCons.Util
exitvalmap = {
2 : 127,
@@ -86,6 +87,26 @@ def generate(env):
if 'ENV' in env:
new_env.update(env['ENV'])
env['ENV'] = new_env
+
+ # Furthermore, force common compiler/linker variables as well
+ envvar_mapping = {
+ 'AR': 'AR',
+ 'AS': 'AS',
+ 'ASFLAGS': 'ASFLAGS',
+ 'CC': 'CC',
+ 'CXX': 'CXX',
+ 'CFLAGS': 'CFLAGS',
+ 'CXXFLAGS': 'CXXFLAGS',
+ 'CPPFLAGS': 'CPPFLAGS',
+ 'LDFLAGS': 'LINKFLAGS',
+ }
+
+ for envvar, toolvar in envvar_mapping.items():
+ if toolvar not in env and envvar in env['ENV']:
+ val = env['ENV'][envvar]
+ if toolvar.endswith('FLAGS'):
+ val = SCons.Util.CLVar(val)
+ env[toolvar] = val
else:
if 'ENV' not in env:
env['ENV'] = {}
diff --git a/src/SCons/Tool/cc.py b/src/SCons/Tool/cc.py
index 590ec5fd3..5f9229a02 100644
--- a/src/SCons/Tool/cc.py
+++ b/src/SCons/Tool/cc.py
@@ -80,7 +80,8 @@ def generate(env):
if 'CC' not in env:
env['CC'] = env.Detect(compilers) or compilers[0]
- env['CFLAGS'] = SCons.Util.CLVar('')
+ if 'CFLAGS' not in env:
+ env['CFLAGS'] = SCons.Util.CLVar('')
env['CCCOM'] = '$CC -o $TARGET -c $CFLAGS $CCFLAGS $_CCCOMCOM $SOURCES'
env['SHCC'] = '$CC'
env['SHCFLAGS'] = SCons.Util.CLVar('$CFLAGS')
diff --git a/src/SCons/Tool/cxx.py b/src/SCons/Tool/cxx.py
index 128cdc4f6..1f852b64c 100644
--- a/src/SCons/Tool/cxx.py
+++ b/src/SCons/Tool/cxx.py
@@ -69,7 +69,8 @@ def generate(env):
if 'CXX' not in env:
env['CXX'] = env.Detect(compilers) or compilers[0]
- env['CXXFLAGS'] = SCons.Util.CLVar('')
+ if 'CXXFLAGS' not in env:
+ env['CXXFLAGS'] = SCons.Util.CLVar('')
env['CXXCOM'] = '$CXX -o $TARGET -c $CXXFLAGS $CCFLAGS $_CCCOMCOM $SOURCES'
env['SHCXX'] = '$CXX'
env['SHCXXFLAGS'] = SCons.Util.CLVar('$CXXFLAGS')
diff --git a/src/SCons/Tool/link.py b/src/SCons/Tool/link.py
index 24d17a31f..4ea9917e8 100644
--- a/src/SCons/Tool/link.py
+++ b/src/SCons/Tool/link.py
@@ -49,7 +49,8 @@ def generate(env):
env['SMARTLINK'] = smart_link
env['LINK'] = "$SMARTLINK"
- env['LINKFLAGS'] = SCons.Util.CLVar('')
+ if 'LINKFLAGS' not in env:
+ env['LINKFLAGS'] = SCons.Util.CLVar('')
# __RPATH is only set to something ($_RPATH typically) on platforms that support it.
env['LINKCOM'] = '$LINK -o $TARGET $LINKFLAGS $__RPATH $SOURCES $_LIBDIRFLAGS $_LIBFLAGS'
--
2.32.0
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