Re: OS 10.5 build 64 bits

[M.-A. Lemburg]

Hi Robin,

On 2008-10-23 17:55, Robin Becker wrote:

I'm trying to build Python from the unix sources on an OS 10.5 machine.
This is because we're getting strange faults when using the built in
python 2.5 together with some precompiled versions of MySQLdb PIL etc etc.

The build works if I use python2.6 and with one minor fix I can get all
the extensions built and apparently working. However, there are some
minor problems with deprecated code inside the version of django we're
using.

I then tried to build against Python2.5. All the extensions build
cleanly except for MySQLdb. I'm now getting

>In file included from /Users/rptlab/PYTHON/include/python2.5/Python.h:57,
from pymemcompat.h:10,
from _mysql.c:29:
/Users/rptlab/PYTHON/include/python2.5/pyport.h:761:2: error: #error
"LONG_BIT definition appears wrong for platform (bad gcc/glibc config?)."

and related

>In file included from _mysql.c:35:
/usr/local/mysql/include/mysql/my_config.h:1095:1: warning:
"SIZEOF_LONG" redefined
In file included from /Users/rptlab/PYTHON/include/python2.5/Python.h:8,
from pymemcompat.h:10,
from _mysql.c:29:
/Users/rptlab/PYTHON/include/python2.5/pyconfig.h:814:1: warning: this
is the location of the previous definition

That looks like a classical name clash between C header files.
It also suggests that you have 64-bit client libs of MySQL
installed.

I assume that's because MySQLdb wants to get settings from the
mysql_config file and the database is compiled in 64 bit mode whilst by
default python seems to be building 32 bit.

As long as the MySQL client lib is built as 32-bit lib, you shouldn't
have a problem.

Is there some magic I can try to make the OS 10.5 build as 64 bits? I
don't see any options to do that in the configure script.

The config options --with-universal-archs is used for this. In theory
you could build a 4-way binary for Intel,PPC/32-bit,64-bit.
Default is 32-bit only.

Also is it reasonable to expect MySQLdb to operate in both camps ie 32
bit on the python side and 64 bit on the mysql side. We didn't see any
obvious errors with the 2.6 build, but our testing was not extensive.

As long as the MySQL wire protocol doesn't get in the way, this
should be possible - again, provided you compile the MySQL client
libs as 32-bit.

--
Marc-Andre Lemburg
eGenix.com

Professional Python Services directly from the Source (#1, Oct 23 2008)

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mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/

__________________________________________________ ______________________

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Registered at Amtsgericht Duesseldorf: HRB 46611

[Robin Becker]

M.-A. Lemburg wrote:
.........igure script.

>
The config options --with-universal-archs is used for this. In theory
you could build a 4-way binary for Intel,PPC/32-bit,64-bit.
Default is 32-bit only.

.........

apparently this issue is known

http://bugs.python.org/issue1619130

but I still don't know how to get the configure script to make 64 bits
only. In the past I have done the configure and then messed with the
resulting Makefiles.
--
Robin Becker

[M.-A. Lemburg]

On 2008-10-23 20:28, Robin Becker wrote:

M.-A. Lemburg wrote:
........igure script.

>>
The config options --with-universal-archs is used for this. In theory
you could build a 4-way binary for Intel,PPC/32-bit,64-bit.
Default is 32-bit only.

........

apparently this issue is known

http://bugs.python.org/issue1619130

but I still don't know how to get the configure script to make 64 bits
only. In the past I have done the configure and then messed with the
resulting Makefiles.

That ticket has been closed, so I guess things do work that way.

Note however that this is just for building Python itself, not
for extensions (even though they pick up config settings from
Python).

--
Marc-Andre Lemburg
eGenix.com

Professional Python Services directly from the Source (#1, Oct 24 2008)

>>Python/Zope Consulting and Support ... http://www.egenix.com/
mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/
mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/

__________________________________________________ ______________________

:::: Try mxODBC.Zope.DA for Windows,Linux,Solaris,MacOSX for free ! ::::
eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48
D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg
Registered at Amtsgericht Duesseldorf: HRB 46611

[Graham Dumpleton]

On Oct 24, 5:28*am, Robin Becker <[e-mail]:

M.-A. Lemburg wrote:

........igure script.

The config options --with-universal-archs is used for this. In theory
you could build a 4-way binary for Intel,PPC/32-bit,64-bit.
Default is 32-bit only.

........

apparently this issue is known

http://bugs.python.org/issue1619130

but I still don't know how to get the configure script to make 64 bits
only. In the past I have done the configure and then messed with the
resulting Makefiles.

Comments in the following may or may not be useful:

http://code.google.com/p/modwsgi/wik...lationOnMacOSX
http://developer.apple.com/releaseno...tes/index.html

The latter only works for Apple supplied Python as I understand it.

Graham

[Robin Becker]

Graham Dumpleton wrote:

>........

http://code.google.com/p/modwsgi/wik...lationOnMacOSX
http://developer.apple.com/releaseno...tes/index.html

The latter only works for Apple supplied Python as I understand it.

......

thanks for these, the mod_wsgi build contains interesting stuff; no doubt I'll
burn my fingers with a few misguided fudges.
--
Robin Becker