[gentoo-alt] Re: Building python fails on SLES10.1 (python-2.7.2)

[Moritz Schlarb]

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I've got it now!

The problem was, that the module-libraries weren't even linked to the
corresponding system libraries

TL;DR: export LDFLAGS="-L/lib" && emerge python

On a native gentoo system, I got:
 $ ldd crypt.so
...
	libcrypt.so.1 => /lib/libcrypt.so.1 (0xb7690000)
...
 $ equery b /lib/libcrypt.so.1
 * Searching for /lib/libcrypt.so.1 ...
sys-libs/glibc-2.12.2 (/lib/libcrypt-2.12.2.so)
sys-libs/glibc-2.12.2 (/lib/libcrypt.so.1 -> libcrypt-2.12.2.so)

 $ ldd nis.so
...
	libnsl.so.1 => /lib/libnsl.so.1 (0xb7713000)
...
 $ equery b /lib/libnsl.so.1
 * Searching for /lib/libnsl.so.1 ...
sys-libs/glibc-2.12.2 (/lib/libnsl.so.1 -> libnsl-2.12.2.so)
sys-libs/glibc-2.12.2 (/lib/libnsl-2.12.2.so)

But crypt_failed.so and nis_failed.so in the prefix build dir just
linked to the default libraries (which I excluded up there) and not the
ones that define the symbols they need esepecially.

Propably it would be better to do that with -rpath but I haven't figured
that out yet :D

Am 24.09.2011 23:57, schrieb Martin Luessi:
> On Sat, Sep 24, 2011 at 11:21 AM, justin <jlec@g.o> wrote:
>> On 9/24/11 4:58 PM, Moritz Schlarb wrote:
>>> Hi!
>>>
>>> On SLES 10.1 (glibc-2.4), building Python fails because the modules
>>> crypt and nis cannot be built.
>>> I worked around this by editing the ebuild to exclude these from
>>> building, hoping that they were not needed for any critical
>>> functionality, but maybe there's some other things that can be done!
>>>
>>>
>>> I get this at the end:
>>>
>>> Python build finished, but the necessary bits to build these modules
>>> were not found:
>>> _sqlite3           _tkinter           bsddb185
>>> dl                 imageop            sunaudiodev
>>> To find the necessary bits, look in setup.py in detect_modules() for the
>>> module's name.
>>>
>>>
>>> Failed to build these modules:
>>> crypt              nis
>>>
>>> The warnings during build are:
>>>
>>> building 'nis' extension
>>> x86_64-pc-linux-gnu-gcc -pthread -fPIC -fno-strict-aliasing -O2 -pipe
>>> -fomit-frame-pointer -fwrapv -I/homes/2/schlarbm/gentoo/usr/include -L/ho
>>> mes/2/schlarbm/gentoo/lib -L/homes/2/schlarbm/gentoo/usr/lib -DNDEBUG
>>> -I/homes/2/schlarbm/gentoo/usr/include -I. -IInclude -I./Include -I/tmp/s
>>> chlarbm/gentoo/portage/dev-lang/python-2.7.2/work/Python-2.7.2/Include
>>> -I/tmp/schlarbm/gentoo/portage/dev-lang/python-2.7.2/work/Python-2.7.2
>>> -c
>>> /tmp/schlarbm/gentoo/portage/dev-lang/python-2.7.2/work/Python-2.7.2/Modules/nismodule.c
>>> -o
>>> build/temp.linux-x86_64-2.7/tmp/schlarbm/gentoo/portage/dev-lang/python-2.7.2/work/Python-2.7.2/Modules/nismodule.o
>>> x86_64-pc-linux-gnu-gcc -pthread -shared -Wl,-O1 -L. -Wl,-O1 -L.
>>> -fno-strict-aliasing -O2 -pipe -fomit-frame-pointer -fwrapv
>>> -I/homes/2/schlarbm/gentoo/usr/include -L/homes/2/schlarbm/gentoo/lib
>>> -L/homes/2/schlarbm/gentoo/usr/lib -DNDEBUG -I. -IInclude -I./Include
>>> build/temp.linux-x86_64-2.7/tmp/schlarbm/gentoo/portage/dev-lang/python-2.7.2/work/Python-2.7.2/Modules/nismodule.o
>>> -L/homes/2/schlarbm/gentoo/usr/lib -L. -lpython2.7 -o
>>> build/lib.linux-x86_64-2.7/nis.so
>>> *** WARNING: renaming "nis" since importing it failed:
>>> build/lib.linux-x86_64-2.7/nis.so: undefined symbol: yp_get_default_domain
>>> building 'crypt' extension
>>> x86_64-pc-linux-gnu-gcc -pthread -fPIC -fno-strict-aliasing -O2 -pipe
>>> -fomit-frame-pointer -fwrapv -I/homes/2/schlarbm/gentoo/usr/include -L/ho
>>> mes/2/schlarbm/gentoo/lib -L/homes/2/schlarbm/gentoo/usr/lib -DNDEBUG
>>> -I/homes/2/schlarbm/gentoo/usr/include -I. -IInclude -I./Include -I/tmp/s
>>> chlarbm/gentoo/portage/dev-lang/python-2.7.2/work/Python-2.7.2/Include
>>> -I/tmp/schlarbm/gentoo/portage/dev-lang/python-2.7.2/work/Python-2.7.2 -
>>> c
>>> /tmp/schlarbm/gentoo/portage/dev-lang/python-2.7.2/work/Python-2.7.2/Modules/cryptmodule.c
>>> -o build/temp.linux-x86_64-2.7/tmp/schlarbm/gentoo
>>> /portage/dev-lang/python-2.7.2/work/Python-2.7.2/Modules/cryptmodule.o
>>> x86_64-pc-linux-gnu-gcc -pthread -shared -Wl,-O1 -L. -Wl,-O1 -L.
>>> -fno-strict-aliasing -O2 -pipe -fomit-frame-pointer -fwrapv
>>> -I/homes/2/schlarb
>>> m/gentoo/usr/include -L/homes/2/schlarbm/gentoo/lib
>>> -L/homes/2/schlarbm/gentoo/usr/lib -DNDEBUG -I. -IInclude -I./Include
>>> build/temp.linux-x86_
>>> 64-2.7/tmp/schlarbm/gentoo/portage/dev-lang/python-2.7.2/work/Python-2.7.2/Modules/cryptmodule.o
>>> -L/homes/2/schlarbm/gentoo/usr/lib -L. -lpytho
>>> n2.7 -o build/lib.linux-x86_64-2.7/crypt.so
>>> *** WARNING: renaming "crypt" since importing it failed:
>>> build/lib.linux-x86_64-2.7/crypt.so: undefined symbol: crypt
>>>
>>> Is there something that can be done?
>>>
>>>
>>>
>>
>> There is an open bug:
>>
>> https://bugs.gentoo.org/show_bug.cgi?id=381163
>>
>>
>
> I had the same problem on CentOS. As a workaround I disabled the crypt
> and nis modules in the ebuild
>
>

- -- 
Moritz Schlarb
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