[Patches] [ python-Patches-1225212 ] HP-UX ia64 64-bit Python executable

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Patches item #1225212, was opened at 2005-06-21 16:34
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Category: Core (C code)
Group: Python 2.4
Status: Open
Resolution: None
Priority: 5
Submitted By: Peter Kropf (peterk)
Assigned to: Nobody/Anonymous (nobody)
Summary: HP-UX ia64 64-bit Python executable

Initial Comment:
In working on getting a 64-bit Python to build and pass
the test suites on a Itanium 2 system running HP-UX 11,
there were two major issues that needed to be resolved:

- on ia64 HP-UX, unistd.h does not define
_POSIX_THREADS and therefore Python/thread.c was not
including thread_pthreads.h even though enough of the
posix threading API is available to support threads in
Python.

- isnan() was not being called to check floating point
numbers and math.sqrt(-1) would not throw a ValueError.


The attached patch make the following changes:

- modifies Python/thread.c to check for __hpux and
_SC_THREADS and if they're defined, then define
_POSIX_THREADS.

- modifies Include/pyport.h to check for __hpux and
__ia64 in the macro that defines _Py_SET_EDOM_FOR_NAN.

- modifies Readme to include details on how to build a
64-bit version of Python on a HP-UX based Itanium 2 system.

The patch file was created by running:

    cvs diff -c | tee ~/hpux_ia64_port.patch

from python/dist/src on a current CVS tree.


The current Readme also states that there is
optimization problems when building Python on an ia64
based HP-UX system using HP's C compiler. I have not
found this to be a problem. Should this note be removed
or marked as out of date?


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