[issue9742] Python 2.7: math module fails to build on Solaris 9

2012-11-17 Thread Roundup Robot 

Roundup Robot added the comment:

New changeset ff300ccd119d by Mark Dickinson in branch '2.7':
Issue #9742: Sneaky fix for build failure on Solaris 9.
http://hg.python.org/cpython/rev/ff300ccd119d

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2012-11-17 Thread Mark Dickinson 

Mark Dickinson added the comment:

Matt:  thanks for testing.  Patch applied---this should be fixed now.

I'm a little bit nervous about this one, since it may introduce new failures on 
systems with a buggy round implementation (Linux / alpha, for example).  Still, 
we have tests for that, so I'll just watch the buildbots for a bit, and 
possibly revert this fix if it proves necessary.

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status: open - closed

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2012-11-01 Thread Matt Selsky 

Matt Selsky added the comment:

I tested this patch again python 2.7.3 on Solaris 9 and the math module now 
builds correctly.  Thanks!

Let me know if you need any output.

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2012-10-31 Thread Mark Dickinson 

Mark Dickinson added the comment:

Looking back at the discussion, I think I got this bit wrong:

the round function is needed, and used, in Objects/floatobject.c (that is, if 
PY_NO_SHORT_FLOAT_REPR is *not* defined;

In fact, the round function is used if PY_NO_SHORT_FLOAT_REPR *is* defined, and 
is unused otherwise.  So indeed nothing from pymath.o is used in the rest of 
the Python core.

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2012-10-31 Thread Mark Dickinson 

Mark Dickinson added the comment:

Reopening because I think I may have an easy solution.  Is there anyone who can 
reproduce the problem who could test the attached patch (against 2.7) to see if 
it solves the issue?

--
assignee:  - mark.dickinson
resolution: out of date - 
status: closed - open
Added file: http://bugs.python.org/file27818/issue9742.patch

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2012-10-28 Thread Mark Dickinson 

Mark Dickinson added the comment:

Unassigning, since I don't plan to work on this any time soon.

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2012-10-28 Thread Stefan Krah 

Stefan Krah added the comment:

FWIW, Solaris 9 has EOL status:

http://www.oracle.com/technetwork/server-storage/solaris10/overview/index-138972.html

I suspect we might as well close this issue, since the motivation to work
on it will be pretty low in general.

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2012-10-28 Thread Trent Nelson 

Changes by Trent Nelson tr...@snakebite.org:


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[issue9742] Python 2.7: math module fails to build on Solaris 9

2012-10-28 Thread Mark Dickinson 

Mark Dickinson added the comment:

Thanks, Stefan.  Closing.

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2012-10-28 Thread Trent Nelson 

Trent Nelson added the comment:

Snakebite's got a Solaris 9 SPARC instance up and running.  It's available via 
the s9 alias.

Regarding EOL, this indicates October 2014 for 9: 
http://en.wikipedia.org/wiki/Solaris_(operating_system)#Version_history

If it's as simple as suggested, I don't mind taking ownership of this.  I'm 
going to run into it anyway as soon as I set up a Solaris 9 slave.

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2012-10-28 Thread Stefan Krah 

Stefan Krah added the comment:

Right, they distinguish between EOL and Extended Support Phase:

http://www.oracle.com/technetwork/server-storage/solaris10/overview/general-137378.html

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2012-05-28 Thread Cory Zito 

Cory Zito mtntr...@gmail.com added the comment:

I hit this issue today with 2.7.3 (Solaris 9, Sun Studio 12).  

Adding Python/pymath.o to $(BUILDPYTHON) worked for me.  

Should a check in configure of is Solaris and no round should just go ahead and 
add this to $(BUILDPYTHON)?

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2012-05-28 Thread Stefan Krah 

Stefan Krah stefan-use...@bytereef.org added the comment:

This is just a suggestion, but the easiest way of getting good support
for a non-mainstream platform is to provide a build slave:

http://www.python.org/dev/buildbot/


Setting up a build slave takes 20 min:

http://bugs.python.org/file24399/buildslave_install.txt


On Unix running a build slave is practically zero-maintenance.


The general problem with exotic platforms is that developers aren't
able to reproduce the issue and are reluctant to commit a fix which
they can't test.

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2011-04-21 Thread David Schnur 

David Schnur david.sch...@dartware.com added the comment:

I encountered this problem when updating from 2.6.4 to 2.7.1 on Solaris 8, 
which also doesn't have 'round'.  I tried srmadsen's --whole-archive option, 
but it wasn't recognized by the (somewhat ancient) tools on that machine.

I solved the problem by just editing the $(BUILDPYTHON) target to include 
Python/pymath.o, as Jerzy Kozera did.

Should configure perhaps take care of this when it detects no round?  It seems 
like this has slipped in simply because very few people still use systems 
without round.

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2011-01-10 Thread Reid Madsen 

Reid Madsen reid.mad...@tektronix.com added the comment:

Python support,

This issue with not being able to build on Solaris 9 is easily fixed.  I have 
attached a patch with the fix for Python 2.7.

When linking with libpython-2.7.a, the linker will only extract modules that 
satisfy dependencies emanating from python.o.  There may be objects in the 
archive that are not needed to satisfy any of these dependencies and those WILL 
NOT be included in the executable.

The GNU linker supports two options that can be use to force the linker to 
include ALL objects in the archive.  Thus if you change the python link line 
from:


 $(BUILDPYTHON):  Modules/python.o $(LIBRARY) $(LDLIBRARY)
 $(LINKCC) $(LDFLAGS) $(LINKFORSHARED) -o $@ \
 Modules/python.o \
 $(BLDLIBRARY) $(LIBS) $(MODLIBS) $(SYSLIBS) $(LDLAST)

to:

 $(BUILDPYTHON): Modules/python.o $(LIBRARY) $(LDLIBRARY)
 $(LINKCC) $(LDFLAGS) $(LINKFORSHARED) -o $@ \
 Modules/python.o \
 -Wl,--whole-archive $(BLDLIBRARY) -Wl,--no-whole-archive \
 $(LIBS) $(MODLIBS) $(SYSLIBS) $(LDLAST)

Then the problem is resolved.

For compiler toolchains that do not support the --whole-library option, you can 
change the link to link with the individual .o files and not use the archive 
library at all.

Let me know if I can be of any more help.

Reid Madsen

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nosy: +srmadsen
Added file: http://bugs.python.org/file20339/Python-2.7.patch

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2010-12-29 Thread Matt Selsky 

Changes by Matt Selsky sel...@gmail.com:


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[issue9742] Python 2.7: math module fails to build on Solaris 9

2010-11-23 Thread Jerzy Kozera 

Jerzy Kozera jerzy.koz...@gmail.com added the comment:

Running

gcc -Wl,-R/usr/local/lib,-R/usr/lib  -o python Python/pymath.o Modules/python.o 
libpython2.7.a -lresolv -lsocket -lnsl -lrt -ldl  -lpthread   -lm

mv build/lib.solaris-2.8-sun4u-2.7/math_failed.so 
build/lib.solaris-2.8-sun4u-2.7/math.so

seems to have made math module import correctly and work:

bash-2.03$ ./python
Python 2.7 (r27:82500, Nov 23 2010, 14:49:30)
[GCC 3.4.6] on sunos5
Type help, copyright, credits or license for more information.
 import math
 math.floor(2.4)
2.0


I suppose it's more a workaround than a solution, but hopefully it makes using 
math module possible and confirms the suggestion there might be something wrong 
with ar/gcc linking the .a file.

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2010-11-23 Thread Doug Shea 

Doug Shea doug.s...@gmail.com added the comment:

It's actually not quite a solution, either. Working your changes into the build 
process, I *do* get a math module... but it does *not* have a round function.

 python
Python 2.7 (r27, Nov 23 2010, 11:54:39)
[GCC 3.3.2] on sunos5
Type help, copyright, credits or license for more information.
 import math;
 print math.round(2.5);
Traceback (most recent call last):
  File stdin, line 1, in module
AttributeError: 'module' object has no attribute 'round'
 print math.floor(2.5);
2.0

A step in the right direction, though, I'd think. Thanks.

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2010-11-23 Thread Mark Dickinson 

Mark Dickinson dicki...@gmail.com added the comment:

 I *do* get a math module... but it does *not* have a round function.

Not a problem:  the math module isn't supposed to have a round function. :-)

The round function is used as part of the calculations that produce the gamma 
function.  So if the gamma function is working, then all's well:

 from math import gamma
 gamma(3.1)
2.197620278392477

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2010-11-22 Thread Doug Shea 

Doug Shea doug.s...@gmail.com added the comment:

I have some knowledge of these things, so I'll try to find out what's going on, 
but I could also upload output and/or debug files here for you to examine, if 
that helps. If you give me the files you'd like to see from my build, or the 
commands you'd like the output of, I'd be happy to oblige. Thanks!

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2010-11-22 Thread Mark Dickinson 

Mark Dickinson dicki...@gmail.com added the comment:

Doug:  thanks.  I think I may just be being stupid here. One thing you might 
try is replacing the line

  extern double round(double);

in Include/pymath.h, with:

  PyAPI_FUNC(double) round(double);

and see if that helps.

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2010-11-22 Thread Doug Shea 

Doug Shea doug.s...@gmail.com added the comment:

I unpacked a fresh tarball, made this change, then did a ./configure and make 
as normal. Exact same error as originally reported. :(

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2010-11-22 Thread Mark Dickinson 

Mark Dickinson dicki...@gmail.com added the comment:

Hmm.  That's puzzling indeed.

I made a claim earlier that 'round' is already used in Objects/floatobject.c, 
but it occurs to me now that that's not true if PY_NO_SHORT_FLOAT_REPR is 
#defined.

Could you attach the pyconfig.h file produced by configure?

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2010-11-22 Thread Doug Shea 

Doug Shea doug.s...@gmail.com added the comment:

Certainly!

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Added file: http://bugs.python.org/file19773/pyconfig.h

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2010-11-22 Thread Mark Dickinson 

Mark Dickinson dicki...@gmail.com added the comment:

Thanks.  I'm still stuck, though.  Since I'm pretty much at the wild guesses 
stage, here's one:

wild idea Perhaps the pymath.o object file isn't being included in the Python 
executable at all, because none of its functions are needed.  Now that doesn't 
seem to make sense, since the round function is needed, and used, in 
Objects/floatobject.c (that is, if PY_NO_SHORT_FLOAT_REPR is *not* defined;  
I'm still not clear on whether that's the case or not---if you can get as far 
as launching an interpreter, then the result of sys.float_repr_style would be 
'short' in that case).  But gcc (depending on the version, I guess) has builtin 
versions of some standard C library functions, including 'round'.  So if it 
were using the builtin then there would be no need to link to the pymath.o 
file, so it might be left out of the python executable.  But I'm not sure why 
the same doesn't happen when compiling the math module.

Neither am I sure how one might go about testing the above hypothesis.

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2010-11-22 Thread Doug Shea 

Doug Shea doug.s...@gmail.com added the comment:

 ./python
Python 2.7 (r27:82500, Nov 22 2010, 10:06:14)
[GCC 3.3.2] on sunos5
Type help, copyright, credits or license for more information.
 import sys
 print sys.float_repr_style
short

So it appears, if I follow you, that PY_NO_SHORT_FLOAT_REPR is not defined.

Glancing through the Makefile, pymath.o is included in the PYTHON_OBJS 
variable, which is in turn included in the LIBRARY_OBJS variable, which is used 
in all the libpython* targets.

I'm going to try to turn on some debugging on the commands that build those 
targets, and see if anything jumps out at me. Maybe it'll be obvious that 
pymath.o is being left out for one reason or another that'll sync up with your 
wild guess. :/

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2010-11-22 Thread Doug Shea 

Doug Shea doug.s...@gmail.com added the comment:

I don't think there's anything wrong with the setup we've been looking at so 
far, per se. The libpython2.7.a file produced has the 'round' function like it 
should:

 nm libpython2.7.a | grep round
[116] |  1360| 696|FUNC |GLOB |0|2  |_Py_double_round
[218] | 0|   0|NOTY |GLOB |0|UNDEF  |_Py_double_round
[10] | 15268| 236|FUNC |LOCL |0|2  |builtin_round
[48] |  9912| 198|OBJT |LOCL |0|4  |round_doc
[8] | 0|  96|FUNC |GLOB |0|2  |round

However, the python executable itself, compiled against that archive, does 
*not* have it:

 nm python | grep round
[4805] |244408| 696|FUNC |GLOB |0|9  |_Py_double_round
[1735] |640836| 236|FUNC |LOCL |0|9  |builtin_round
[1770] |   1533576| 198|OBJT |LOCL |0|16 |round_doc

So, for some reason, the gcc command that builds that python executable is 
leaving it out:

gcc -o python \
   Modules/python.o \
   libpython2.7.a -lresolv -lsocket -lnsl -lrt -ldl -lpthread -lm

Just an update. Going to try to debug that command and see if I can find out 
why.

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2010-11-20 Thread Mark Dickinson 

Mark Dickinson dicki...@gmail.com added the comment:

 Force it to export that 'round' symbol in the core, perhaps?

Sure.  That might involve first understanding why it's not being exported.  
That's where I'm a bit stuck, especially without a Solaris system to test on.  
If someone can figure out why the symbol isn't being exported in the first 
place, that would be helpful.

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2010-11-19 Thread Doug Shea 

Doug Shea doug.s...@gmail.com added the comment:

Is there perhaps a work-around we could use to get this to compile and have a 
math module? Force it to export that 'round' symbol in the core, perhaps?

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2010-09-02 Thread Misael Henriquez 

New submission from Misael Henriquez misael.henriq...@merchantlink.com:

building 'math' extension$
gcc -fPIC -fno-strict-aliasing -g -O2 -DNDEBUG -g -O3 -Wall -Wstrict-prototypes 
-I. -IInclude -I./Include -I/usr/local/include 
-I/usr/local/src/python/Python-2.7/Include -I/usr/local/src/python/Python-2.7 
-c /usr/local/src/python/Python-2.7/Modules/mathmodule.c -o 
build/temp.solaris-2.9-sun4u-2.7/usr/local/src/python/Python-2.7/Modules/mathmodule.o$
gcc -fPIC -fno-strict-aliasing -g -O2 -DNDEBUG -g -O3 -Wall -Wstrict-prototypes 
-I. -IInclude -I./Include -I/usr/local/include 
-I/usr/local/src/python/Python-2.7/Include -I/usr/local/src/python/Python-2.7 
-c /usr/local/src/python/Python-2.7/Modules/_math.c -o 
build/temp.solaris-2.9-sun4u-2.7/usr/local/src/python/Python-2.7/Modules/_math.o$
gcc -shared 
build/temp.solaris-2.9-sun4u-2.7/usr/local/src/python/Python-2.7/Modules/mathmodule.obuild/temp.solaris-2.9-sun4u-2.7/usr/local/src/python/Python-2.7/Modules/_math.o
 -L/usr/local/lib -lm -o build/lib.solaris-2.9-sun4u-2.7/math.so$
*** WARNING: renaming math since importing it failed: ld.so.1: python: fatal: 
relocation error: file build/lib.solaris-2.9-sun4u-2.7/math.so: symbol round: 
referenced symbol not found$

--
components: Extension Modules
messages: 115379
nosy: mhenriq
priority: normal
severity: normal
status: open
title: Python 2.7: math module fails to build on Solaris 9
type: compile error
versions: Python 2.7

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2010-09-02 Thread Misael Henriquez 

Misael Henriquez misael.henriq...@merchantlink.com added the comment:

The problem appears to be the lack of a round function in Solaris 9.  This 
compiles find in Solaris 10, but I need it in Solaris 9.

configure:11989: checking for round
configure:11989: gcc -o conftest -g -O2   conftest.c -lresolv -lsocket -lnsl 
-lrt -ldl  -lpthread -lm 5
/var/tmp//ccWVF7bf.o: In function `main':
/usr/local/src/python/Python-2.7/conftest.c:287: undefined reference to `round'

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2010-09-02 Thread Ned Deily 

Changes by Ned Deily n...@acm.org:


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nosy: +mark.dickinson

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2010-09-02 Thread Mark Dickinson 

Mark Dickinson dicki...@gmail.com added the comment:

Hmm.  There should be a configure-time test for 'round'.  Could you look for a 
line something like:

  checking for round... yes

in the configure output and tell me whether you've got a 'yes' or a 'no' there?

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assignee:  - mark.dickinson

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2010-09-02 Thread Mark Dickinson 

Mark Dickinson dicki...@gmail.com added the comment:

Ah.  Reading your second message more closely, you're presumably getting a 'no' 
there.  Could you double check that 'HAVE_ROUND' is not defined in pyconfig.h?

In that case, what's supposed to happen is that there's a substitute 'round' 
function defined in Python/pymath.c that gets used.  That's clearly working 
okay in the Python core, since it looks like your build doesn't fail until you 
get to the module build stage, and 'round' is used in Objects/floatobject.c in 
the core.

But I'm guessing that for some reason your Python executable isn't exporting 
that 'round' symbol that's defined in pymath.c.  I'm not sure why that would be.

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2010-09-02 Thread Misael Henriquez 

Misael Henriquez misael.henriq...@merchantlink.com added the comment:

The check for round failed during configure.  I included a bit of that in my 
second note above.  Here's a bit more of the output:

collect2: ld returned 1 exit status
configure:11989: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define _GNU_SOURCE 1
| #define _NETBSD_SOURCE 1
snip
| /* Override any GCC internal prototype to avoid an error.
|Use char because int might match the return type of a GCC
|builtin and then its argument prototype would still apply.  */
| #ifdef __cplusplus
| extern C
| #endif
| char round ();
| /* The GNU C library defines this for functions which it implements
| to always fail with ENOSYS.  Some functions are actually named
| something starting with __ and the normal name is an alias.  */
| #if defined __stub_round || defined __stub___round
| choke me
| #endif
|
| int
| main ()
| {
| return round ();
|   ;
|   return 0;
| }
configure:11989: result: no

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[issue9742] Python 2.7: math module fails to build on Solaris 9

2010-09-02 Thread Misael Henriquez 

Misael Henriquez misael.henriq...@merchantlink.com added the comment:

Thanks for your attention to this issue.  It sounds like you're onto something 
regarding the stand-in function not getting exported.  I'm not sure what to 
check next, though.

From pyconfig.h:

/* Define to 1 if you have the `round' function. */
/* #undef HAVE_ROUND */

From Python/pymath.c:

#ifndef HAVE_ROUND
double
round(double x)
{
double absx, y;
absx = fabs(x);
y = floor(absx);
if (absx - y = 0.5)
y += 1.0;
return copysign(y, x);
}
#endif /* HAVE_ROUND */

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