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Date: Tue, 24 Apr 2012 23:02:21 +0200
From: Tasslehoff Kjappfot <tasskjapp@gmail.com>
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To: Patches and discussions about the oe-core layer
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Subject: Error compiling Boost with Python support on 64-bit host for 32-bit target.
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boost.inc:

# To enable python, uncomment the following:
#BOOST_LIBS += "python"
#DEPENDS += "python"
#PYTHON_ROOT = "${STAGING_DIR_HOST}/${prefix}"
#PYTHON_VERSION = "2.5"

If this is uncommented, stuff fails with messages like:

| ...failed gcc.compile.c++ 
bin.v2/libs/python/build/69ffc88faf507005827aa061bd65b9bd/wrapper.o...
| gcc.compile.c++ 
bin.v2/libs/python/build/69ffc88faf507005827aa061bd65b9bd/import.o
| In file included from 
/src/openembedded/build/tmp-angstrom_v2012_05-eglibc/sysroots/x86_64-linux/usr/include/python2.7/Python.h:58:0,
|                  from ./boost/python/detail/wrap_python.hpp:142,
|                  from ./boost/python/detail/prefix.hpp:13,
|                  from ./boost/python/ssize_t.hpp:9,
|                  from ./boost/python/object.hpp:8,
|                  from ./boost/python/import.hpp:8,
|                  from libs/python/src/import.cpp:6:
| 
/src/openembedded/build/tmp-angstrom_v2012_05-eglibc/sysroots/x86_64-linux/usr/include/python2.7/pyport.h:849:2: 
error: #error "LONG_BIT definition appears wrong for platform (bad 
gcc/glibc config?)."

I have problems figuring out how to solve this (other than by 
reinstalling Ubuntu 32-bit).

- Tasslehoff