| Summary: | If ARCHFLAGS is set Python will (may) not build correctly | ||
|---|---|---|---|
| Product: | Gentoo/Alt | Reporter: | Alfredo Deza <arufuredosan> |
| Component: | Prefix Support | Assignee: | Gentoo Prefix <prefix> |
| Status: | RESOLVED WONTFIX | ||
| Severity: | normal | ||
| Priority: | Normal | ||
| Version: | unspecified | ||
| Hardware: | x86 | ||
| OS: | OS X | ||
| Whiteboard: | |||
| Package list: | Runtime testing required: | --- | |
maybe I sound stupid here, but why would you set ARCHFLAGS? In fact, your environment should be as empty as possible, to eliminate any possible negative influence from environmental settings like these ARCHFLAGS is (in my case) needed to build Python packages that in turn build some C-extensions. These extensions rely upon having proper ARCHFLAGS set. Since I work with Python it is cumbersome to set this flag over and over again every time a Python package that has a C extension needs to be built. It makes sense to have a bare system to start with, but it wasn't an option with any of OSX machines since they are used quite heavily for work. Also, it might be worth adding that as a note in the instructions for installing Gentoo-prefix. Ok, then you better prepare for a shock: it won't work in Prefix. We don't do any multilib stuff, and we're not going to go down that route either. The way to do it, is to just have two prefixes, one for 32-bits and the other for 64-bits. We don't support this, because can't. |
Some Python packages depend on having $ARCHFLAGS set so that it knows what type of architecture they are building against. In my particular case, I had them set like: export ARCHFLAGS="-arch i386 -arch x86_64" There is a particular section in Python's distutils that checks for this possibility and tries to loop over certain options, but it is not careful enough to handle non-existant flags and breaks the build with a KeyError: Traceback (most recent call last): File "./setup.py", line 15, in <module> from distutils.command.build_ext import build_ext File "/Users/adeza/Gentoo/tmp/var/tmp/python-2.7.2/Python-2.7.2/Lib/distutils/command/build_ext.py", line 37, in <module> class build_ext (Command): File "/Users/adeza/Gentoo/tmp/var/tmp/python-2.7.2/Python-2.7.2/Lib/distutils/command/build_ext.py", line 67, in build_ext "(default: %s)" % get_platform()), File "/Users/adeza/Gentoo/tmp/var/tmp/python-2.7.2/Python-2.7.2/Lib/distutils/util.py", line 98, in get_platform cfgvars = get_config_vars() File "/Users/adeza/Gentoo/tmp/var/tmp/python-2.7.2/Python-2.7.2/Lib/distutils/sysconfig.py", line 545, in get_config_vars flags = _config_vars[key] KeyError: 'CXXFLAGS' After I commented out ARCHFLAG I was able to build/bootstrap with no problems. Versions: OSX 10.6.8 GCC i686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5666) (dot 3) Xcode 4.02 Reproducible: Always Steps to Reproduce: 1. Add ARCHFLAGS as an environment variable 2. Start a Gentoo-prefix installation following these instructions: http://www.gentoo.org/proj/en/gentoo-alt/prefix/bootstrap-macos.xml 3. Fail when trying to bootstrap Python 3. Actual Results: A traceback was generated when calling distutils.py