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build: allow some python variable overrides

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The python variables (settings) are fetched from a running python
interpreter which usually isn't the target one when cross compiling,
hence libraries and flags aren't the same and can pollute the target build.
Allow some of these variables to be redefined via environment variables
in order to aid cross-compiling.
According to testing python_LDFLAGS and python_LIBDIR should be enough.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: David Disseldorp <ddiss@samba.org>

Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Feb 13 06:03:26 CET 2014 on sn-devel-104
This commit is contained in:
Gustavo Zacarias 2014-02-12 14:59:19 -08:00 committed by Jeremy Allison
parent a9ccdec008
commit f8c179b80e
1 changed files with 13 additions and 0 deletions
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13
buildtools/wafadmin/Tools/python.py
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@ -193,6 +193,19 @@ MACOSX_DEPLOYMENT_TARGET = %r
""" % (python, python_prefix, python_SO, python_SYSLIBS, python_LDFLAGS, python_SHLIBS,
python_LIBDIR, python_LIBPL, INCLUDEPY, Py_ENABLE_SHARED, python_MACOSX_DEPLOYMENT_TARGET))
# Allow some python overrides from env vars for cross-compiling
os_env = dict(os.environ)
override_python_LDFLAGS = os_env.get('python_LDFLAGS', None)
if override_python_LDFLAGS is not None:
conf.log.write("python_LDFLAGS override from environment = %r\n" % (override_python_LDFLAGS))
python_LDFLAGS = override_python_LDFLAGS
override_python_LIBDIR = os_env.get('python_LIBDIR', None)
if override_python_LIBDIR is not None:
conf.log.write("python_LIBDIR override from environment = %r\n" % (override_python_LIBDIR))
python_LIBDIR = override_python_LIBDIR
if python_MACOSX_DEPLOYMENT_TARGET:
conf.env['MACOSX_DEPLOYMENT_TARGET'] = python_MACOSX_DEPLOYMENT_TARGET
conf.environ['MACOSX_DEPLOYMENT_TARGET'] = python_MACOSX_DEPLOYMENT_TARGET