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From 516d184b5db8ebdd8b184ef871050c3ab3f03fdf Mon Sep 17 00:00:00 2001
From: Andrew Chadwick <andrewc-git@piffle.org>
Date: Sun, 21 Apr 2013 22:51:05 +0100
Subject: [PATCH] SConstruct: support standard build environ vars
Support the standard build environment vars CC, CXX, CFLAGS, CXXFLAGS,
CPPFLAGS, and LDFLAGS everywhere.
Partially addresses https://gna.org/bugs/?20754
---
SConstruct | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/SConstruct b/SConstruct
index 0b55da1..ef39b9e 100644
--- a/SConstruct
+++ b/SConstruct
@@ -1,6 +1,7 @@
import os, sys
from os.path import join, basename
from SCons.Script.SConscript import SConsEnvironment
+import SCons.Util
EnsureSConsVersion(1, 0)
@@ -45,6 +46,24 @@ print('using %r (use scons python_config=xxx to change)' % env['python_config'])
if sys.platform == "win32":
# remove this mingw if trying VisualStudio
env = Environment(tools=tools + ['mingw'], ENV=os.environ, options=opts)
+
+# Respect some standard build environment stuff
+if os.environ.has_key('CC'):
+ env['CC'] = os.environ['CC']
+if os.environ.has_key('CFLAGS'):
+ env['CCFLAGS'] += SCons.Util.CLVar(os.environ['CFLAGS'])
+if os.environ.has_key('CXX'):
+ env['CXX'] = os.environ['CXX']
+if os.environ.has_key('CXXFLAGS'):
+ env['CXXFLAGS'] += SCons.Util.CLVar(os.environ['CXXFLAGS'])
+if os.environ.has_key('CPPFLAGS'):
+ env['CCFLAGS'] += SCons.Util.CLVar(os.environ['CPPFLAGS'])
+ env['CXXFLAGS'] += SCons.Util.CLVar(os.environ['CPPFLAGS'])
+if os.environ.has_key('LDFLAGS'):
+ env['LINKFLAGS'] += SCons.Util.CLVar(os.environ['LDFLAGS'])
+if "$CCFLAGS" in env['CXXCOM']:
+ env['CXXCOM'] = env['CXXCOM'].replace("$CCFLAGS","")
+
opts.Update(env)
env.Append(CXXFLAGS=' -Wall -Wno-sign-compare -Wno-write-strings')
--
1.7.10.4
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