[ python-Bugs-1528620 ] Python 2.5b2 fails to build on Solaris 10

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Bugs item #1528620, was opened at 2006-07-25 22:34
Message generated for change (Comment added) made by ostkamp
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Category: Build
Group: Python 2.5
Status: Open
Resolution: None
Priority: 5
Submitted By: Guido Ostkamp (ostkamp)
Assigned to: Nobody/Anonymous (nobody)
Summary: Python 2.5b2 fails to build on Solaris 10

Initial Comment:
Hello,

I tried to build Python 2.5b2 on Solaris 10 with the
Sun Workshop Compiler, which fails.

Please see the attachment for a complete log in several
stages. Here is a short summary:

*
build/temp.solaris-2.10-sun4us-2.5/libffi/include/ffi.h
contains illegal C-syntax __attribute(...)

This might be legal for GCC, but not for other compilers. 

* Even if this is removed, there are other fatal
compiler errors in the _ctypes module later on.

* The build process seems to invoke _cursesmodule.c.
This contains the use of a function  mvwgetnstr(). This
function does not exist in /usr/lib/libcurses.so.

* The build process fails to link with libcurses.so.

The Python 2.4.3 release fails for the same reasons
regarding the curses problems, but the _ctypes stuff
did not exist in this form. 

I would appreciate, if these bugs could be fixed.

Regards,

Guido

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>Comment By: Guido Ostkamp (ostkamp)
Date: 2006-07-26 22:52

Message:
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Hello,

@nnorwitz:

Unfortunately I cannot provide a patch, but can give some hints:

If you (or the developers) have a Solaris 10 box, they can
download the Sun Studio 11 which includes the Sun Compiler
for free from the URL:
<http://developers.sun.com/prodtech/cc/downloads/index.jsp>

Then you should be able to verify the problems yourself
(though I am using an older version of the compiler from the
times when it was commercial).

Regarding the _ctypes module problems:

The module contains a libffi which nowadays appears to be
part of the GNU GCC. This lib was never made to work with
anything else but GCC, as it seems. Even older versions do
not compile.

Therefore, if this module is not really necessary, it should
be removed or at least deactivated by the configuration if
not using GCC. It also seems, that other modules like
_struct appear to be depending on this, if I'm right.

Regarding the curses problem:

I can workaround this if changing the mvwgetnstr() to
mvwgetstr() with omitting the last parameter. However this
should be configured automatically.

Futhermore there was no linking of the correct library
(/usr/lib/libcurses.so). I had to activate the curses entry
in Modules/Setup manually and to call make two more times. 

Regarding GCC on Solaris: I tried with GCC but it failed on
Solaris 10 as well. I will open a new fault report for the
GCC problems.

@akuchling:

You say the curses bug should be fixed in 2.4 and 2.5. It
isn't. I tried 2.4.3 yesterday as well and ran into the very
same problem. Or do you mean it was changed more recently?



----------------------------------------------------------------------

Comment By: A.M. Kuchling (akuchling)
Date: 2006-07-26 19:28

Message:
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The _cursesmodule mvwgetnstr() problem was reported as bug
#1471938 and should now be fixed on both the 2.4 and 2.5
branches.



----------------------------------------------------------------------

Comment By: Neal Norwitz (nnorwitz)
Date: 2006-07-26 06:11

Message:
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Can you provide a patch to address these problems?

I don't know that any developers have access to the sun
workshop compiler.  We have a Solaris 10 box, but it only
has gcc AFAIK.

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