[OE-core] Error compiling Boost with Python support on 64-bit host for 32-bit target.

[Richard Purdie]

On Tue, 2012-04-24 at 23:02 +0200, Tasslehoff Kjappfot wrote:
> 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).

You have to wonder why its looking in the native sysroot and not the
target one. It would probably find better values in the target one...

Cheers,

Richard