[issue1222585] C++ compilation support for distutils

[Éric Araujo]

Éric Araujo  added the comment:

setuptools and other active build tools are the better target for this feature.

--
assignee: eric.araujo -> 
resolution:  -> wont fix
stage: test needed -> resolved
status: open -> closed

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[issue1222585] C++ compilation support for distutils

[Ryan Schmidt]

Ryan Schmidt  added the comment:

Christian, thanks for the pointer. I think you're right, I probably am actually 
wanting this to be fixed in setuptools, not distutils, since setuptools is what 
people are using today. Since setuptools is an offshoot of distutils, I had 
assumed that the developers of setuptools would take ownership of any remaining 
distutils bugs that affected setuptools but I guess not. I looked through the 
setuptools issue tracker and this was the closest existing bug I could find: 
https://github.com/pypa/setuptools/issues/1732

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[issue1222585] C++ compilation support for distutils

[STINNER Victor]

STINNER Victor  added the comment:

> What needs to happen to get this 15 year old bug fixed? It prevents C++ 
> Python modules from being compiled in situations where the user needs to 
> supply CXXFLAGS.

Someone has to propose a PR, someone else to review it, and a core developer 
has to take the responsibility to merge that PR. So far, there is no PR created.

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[issue1222585] C++ compilation support for distutils

[Christian Heimes]

Christian Heimes  added the comment:

Please report the issue with setuptools. distutils is no longer under 
development. We recommend that all users use setuptools.

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[issue1222585] C++ compilation support for distutils

[Ryan Schmidt]

Ryan Schmidt  added the comment:

What needs to happen to get this 15 year old bug fixed? It prevents C++ Python 
modules from being compiled in situations where the user needs to supply 
CXXFLAGS.

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[issue1222585] C++ compilation support for distutils

[STINNER Victor]

Change by STINNER Victor :


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[issue1222585] C++ compilation support for distutils

[Jeroen Demeyer]

Jeroen Demeyer  added the comment:

> I tried using compiler.compiler.remove('-Wstrict-prototypes') to no avail.

The -Wstrict-prototypes issue is a separate bug. It is fixed in Python >= 3.6 
and there is an open backport PR for 2.7: 
https://github.com/python/cpython/pull/7476

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[issue1222585] C++ compilation support for distutils

[marsam]

Change by marsam :


--
versions: +Python 3.7 -Python 3.5
Added file: https://bugs.python.org/file48016/python-3.x-distutils-C++.patch

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[issue1222585] C++ compilation support for distutils

[Dmitry Kalinkin]

Change by Dmitry Kalinkin :


Added file: https://bugs.python.org/file47669/python-3.8-distutils-C++.patch

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[issue1222585] C++ compilation support for distutils

[Eitan Adler]

Change by Eitan Adler :


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[issue1222585] C++ compilation support for distutils

[Ben Elliston]

Ben Elliston  added the comment:

Is there a simple workaround that one can put into setup.py in the meantime?  I 
tried using compiler.compiler.remove('-Wstrict-prototypes') to no avail.

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[issue1222585] C++ compilation support for distutils

[Josef Kemetmüller]

Changes by Josef Kemetmüller :


Removed file: http://bugs.python.org/file47045/GARBAGE

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[issue1222585] C++ compilation support for distutils

[Dirkjan Ochtman]

Changes by Dirkjan Ochtman :


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[issue1222585] C++ compilation support for distutils

[Josef Kemetmüller]

Josef Kemetmüller added the comment:

python-3.4-distutils-C++.patch with Erik Hvatum's suggestions applied.

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[issue1222585] C++ compilation support for distutils

[Josef Kemetmüller]

Josef Kemetmüller added the comment:

python-3.4-distutils-C++.patch with changes of Erik Hvatum applied.

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Added file: http://bugs.python.org/file47045/python-3.x-distutils-C++.patch

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[issue1222585] C++ compilation support for distutils

[Christian H]

Changes by Christian H :


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[issue1222585] C++ compilation support for distutils

[B. Clausius]

Changes by B. Clausius :


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[issue1222585] C++ compilation support for distutils

[Stefan Krah]

Changes by Stefan Krah :


--
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versions: +Python 3.5, Python 3.6 -Python 3.4

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[issue1222585] C++ compilation support for distutils

[Erik Hvatum]

Erik Hvatum added the comment:

The 2012-12-31 of this patch (currently the latest) has the surprising effect 
of causing distutils CFLAGS to be dropped.  See for reference: 
https://bugs.gentoo.org/show_bug.cgi?id=548776

The issue I am experiencing is resolved by changing the section of the patch 
that reads:

+-(cc, cxx, opt, cflags, ccshared, ldshared, shlib_suffix, ar, 
ar_flags) = \
+-get_config_vars('CC', 'CXX', 'OPT', 'CFLAGS',
+-'CCSHARED', 'LDSHARED', 'SHLIB_SUFFIX', 'AR', 
'ARFLAGS')
++(cc, cxx, ccshared, ldshared, ldcxxshared, shlib_suffix, ar, 
ar_flags) = \
++get_config_vars('CC', 'CXX', 'CCSHARED', 'LDSHARED', 
'LDCXXSHARED',
++'SHLIB_SUFFIX', 'AR', 'ARFLAGS')
++
++cflags = ''
++cxxflags = ''

to:

+-(cc, cxx, opt, cflags, ccshared, ldshared, shlib_suffix, ar, 
ar_flags) = \
+-get_config_vars('CC', 'CXX', 'OPT', 'CFLAGS',
+-'CCSHARED', 'LDSHARED', 'SHLIB_SUFFIX', 'AR', 
'ARFLAGS')
++(cc, cxx, cflags, ccshared, ldshared, ldcxxshared, shlib_suffix, ar, 
ar_flags) = \
++get_config_vars('CC', 'CXX', 'CFLAGS', 'CCSHARED', 'LDSHARED', 
'LDCXXSHARED',
++'SHLIB_SUFFIX', 'AR', 'ARFLAGS')
++
++cxxflags = cflags

This change causes the CFLAGS outputted by python-config --cflags to be used 
by distutils, as they are without the patch applied.  To me, losing those 
CFLAGS, especially when building plain C python extensions, seems like a 
significant regression.

--
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versions: +Python 3.4 -Python 3.5

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[issue1222585] C++ compilation support for distutils

[Brian Curtin]

Changes by Brian Curtin br...@python.org:


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[issue1222585] C++ compilation support for distutils

[Éric Araujo]

Éric Araujo added the comment:

Now that distutils2 development is stopped and that distutils is no longer 
under a feature freeze, this is a reasonable thing to add to 3.5.  Thanks for 
your efforts Arfrever, and sorry you had to port and maintain this to so many 
different versions.

--
components: +Distutils -Distutils2
keywords:  -easy
versions: +Python 3.5 -3rd party, Python 3.3

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[issue1222585] C++ compilation support for distutils

[Michael Crusoe]

Changes by Michael Crusoe michael.cru...@gmail.com:


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[issue1222585] C++ compilation support for distutils

[Arfrever Frehtes Taifersar Arahesis]

Changes by Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com:


Added file: http://bugs.python.org/file32218/python-2.7-distutils-C++.patch

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[issue1222585] C++ compilation support for distutils

[Arfrever Frehtes Taifersar Arahesis]

Changes by Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com:


Removed file: http://bugs.python.org/file28508/python-2.7-distutils-C++.patch

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[issue1222585] C++ compilation support for distutils

[Arfrever Frehtes Taifersar Arahesis]

Changes by Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com:


Added file: http://bugs.python.org/file32219/python-3.3-distutils-C++.patch

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[issue1222585] C++ compilation support for distutils

[Arfrever Frehtes Taifersar Arahesis]

Changes by Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com:


Added file: http://bugs.python.org/file32220/python-3.4-distutils-C++.patch

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[issue1222585] C++ compilation support for distutils

[Arfrever Frehtes Taifersar Arahesis]

Changes by Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com:


Removed file: http://bugs.python.org/file28509/python-3.2-distutils-C++.patch

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[issue1222585] C++ compilation support for distutils

[Arfrever Frehtes Taifersar Arahesis]

Changes by Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com:


Removed file: http://bugs.python.org/file28510/python-3.3-distutils-C++.patch

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[issue1222585] C++ compilation support for distutils

[Arfrever Frehtes Taifersar Arahesis]

Changes by Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com:


Removed file: http://bugs.python.org/file28511/python-3.4-distutils-C++.patch

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[issue1222585] C++ compilation support for distutils

[Danek Duvall]

Changes by Danek Duvall duv...@comfychair.org:


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[issue1222585] C++ compilation support for distutils

[Jeroen Demeyer]

Changes by Jeroen Demeyer jdeme...@cage.ugent.be:


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[issue1222585] C++ compilation support for distutils

[Arfrever Frehtes Taifersar Arahesis]

Changes by Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com:


Removed file: http://bugs.python.org/file16630/python-LDCXXSHARED.patch

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[issue1222585] C++ compilation support for distutils

[Arfrever Frehtes Taifersar Arahesis]

Arfrever Frehtes Taifersar Arahesis added the comment:

I attach updated patches for distutils in case somebody wants to use them. (I 
privately update them once per week.)

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[issue1222585] C++ compilation support for distutils

[Arfrever Frehtes Taifersar Arahesis]

Changes by Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com:


--
keywords: +patch
Added file: http://bugs.python.org/file28508/python-2.7-distutils-C++.patch

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[issue1222585] C++ compilation support for distutils

[Arfrever Frehtes Taifersar Arahesis]

Changes by Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com:


Added file: http://bugs.python.org/file28509/python-3.2-distutils-C++.patch

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[issue1222585] C++ compilation support for distutils

[Arfrever Frehtes Taifersar Arahesis]

Changes by Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com:


Added file: http://bugs.python.org/file28510/python-3.3-distutils-C++.patch

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[issue1222585] C++ compilation support for distutils

[Arfrever Frehtes Taifersar Arahesis]

Changes by Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com:


Added file: http://bugs.python.org/file28511/python-3.4-distutils-C++.patch

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[issue1222585] C++ compilation support for distutils

[Dirkjan Ochtman]

Dirkjan Ochtman dirk...@ochtman.nl added the comment:

Ping, again. I'm sorry, I didn't write any of these patches and would not be a 
great fit for writing tests.

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[issue1222585] C++ compilation support for distutils

[Éric Araujo]

Éric Araujo mer...@netwok.org added the comment:

I should be able to port the patch and add tests for detect_language, but I 
know very little about C++ and may not be able to write a full test that really 
compiles and checks a C++ program.  We’re having a sprint on the 21, I’ll see 
if I can work with another participant to do this.  A sample short C++ source 
file would help (just use some Python/C function and print something).

--
keywords: +easy -patch
stage: patch review - test needed

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[issue1222585] C++ compilation support for distutils

[Éric Araujo]

Éric Araujo mer...@netwok.org added the comment:

Well, there’s no rush, Python 3.3b1 is not next week.

I’m willing to apply the patch to packaging and distutils2 (in a week or two 
when I’ve finished a massive cleanup and caught up with packaging), but I’d 
like tests for detect_language, and if possible tests for compiling C++ 
extensions/libs too.

--
assignee: tarek - eric.araujo
versions: +3rd party

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[issue1222585] C++ compilation support for distutils

[Dirkjan Ochtman]

Dirkjan Ochtman dirk...@ochtman.nl added the comment:

Could this get some attention, please?

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[issue1222585] C++ compilation support for distutils

[Éric Araujo]

Changes by Éric Araujo mer...@netwok.org:


--
type: compile error - feature request
versions: +Python 3.3 -3rd party

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[issue1222585] C++ compilation support for distutils

[Dirkjan Ochtman]

Changes by Dirkjan Ochtman dirk...@ochtman.nl:


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[issue1222585] C++ compilation support for distutils

[Éric Araujo]

Changes by Éric Araujo mer...@netwok.org:


--
versions: +3rd party -Python 2.5, Python 2.6, Python 2.7, Python 3.1, Python 3.2

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[issue1222585] C++ compilation support for distutils

[Éric Araujo]

Éric Araujo mer...@netwok.org added the comment:

Arfrever’s patch looks good. There is no tests for detect_language now; should 
the patch be blocked by that?

(Note: Remember to use “hg import --user 'Arfrever Frehtes Taifersar Arahesis 
preferred email'” to give proper credit)

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[issue1222585] C++ compilation support for distutils

[Éric Araujo]

Changes by Éric Araujo mer...@netwok.org:


--
nosy: +eric.araujo
versions: +Python 2.5, Python 2.6, Python 3.1 -Python 3.3

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[issue1222585] C++ compilation support for distutils

[Arfrever Frehtes Taifersar Arahesis]

Changes by Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com:


Removed file: http://bugs.python.org/file16519/python-distutils-C++.patch

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[issue1222585] C++ compilation support for distutils

[Arfrever Frehtes Taifersar Arahesis]

Changes by Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com:


Added file: http://bugs.python.org/file16742/distutils2-C++.patch

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[issue1222585] C++ compilation support for distutils

[Benjamin Peterson]

Benjamin Peterson benja...@python.org added the comment:

I think python-LDCXXSHARED.patch is fine.

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[issue1222585] C++ compilation support for distutils

[Arfrever Frehtes Taifersar Arahesis]

Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com added the comment:

Python can be compiled using C++ compiler.
See http://docs.python.org/extending/extending.html#writing-extensions-in-c

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[issue1222585] C++ compilation support for distutils

[Arfrever Frehtes Taifersar Arahesis]

Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com added the comment:

Also you would have to pass --with-cxx-main=compiler option to configure.

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[issue1222585] C++ compilation support for distutils

[Tarek Ziadé]

Changes by Tarek Ziadé ziade.ta...@gmail.com:


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priority: normal - high

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[issue1222585] C++ compilation support for distutils

[Arfrever Frehtes Taifersar Arahesis]

Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com added the comment:

To have proper support for C++ linking in distutils2 at least in when used with 
Python 2.7, Makefile should set a variable, which will specify default C++ 
linker. I think that LDCXXSHARED can be used as a name for this new variable. 
I'm attaching the patch for configure.in and Makefile.pre.in.

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Added file: http://bugs.python.org/file16630/python-LDCXXSHARED.patch

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[issue1222585] C++ compilation support for distutils

[Roumen Petrov]

Roumen Petrov bugtr...@roumenpetrov.info added the comment:

I could not found reasons python build to support C++ compiler as all source is 
C!
Another case is distutils where is possible external module to use C++ code.

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[issue1222585] C++ compilation support for distutils

[Arfrever Frehtes Taifersar Arahesis]

Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com added the comment:

I'm attaching my own patch, which has the following advantages:
- Determination of target language is performed per source file instead of per 
list of source files passed to CCompiler.compile().
- Proper determination of linker.
- Proper support for CXXFLAGS and other variables.

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nosy: +Arfrever
Added file: http://bugs.python.org/file16519/python-distutils-C++.patch

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[issue1222585] C++ compilation support for distutils

[Tarek Ziadé]

Tarek Ziadé ziade.ta...@gmail.com added the comment:

Moved to distutils2 (distutils is feature frozen now)

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components: +Distutils2 -Distutils

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[issue1222585] C++ compilation support for distutils

[Michael Droettboom]

Michael Droettboom mdb...@users.sourceforge.net added the comment:

Does the reassignment only apply to the more recent more ambitious patch?  The 
original patch (and my forward porting of it) is purely a bugfix, not a feature 
freeze.  This is a showstopper bug for matplotlib on Solaris, for example, and 
I would hate to see its application further delayed.

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[issue1222585] C++ compilation support for distutils

[Tarek Ziadé]

Tarek Ziadé ziade.ta...@gmail.com added the comment:

If we consider that Distutils didn't provide c++ support, and that it partially 
worked by accident (through gcc), I would call it a new feature. Especially 
since it requires a new option.

We are freezing the API so we can't add options to methods/functions. 

That's why it could be done on distutils2 instead, which will be released when 
2.7 final is released (but not in the stdlib), and backward compatible with 
2.4, 2.5, 2.6.

If we could do the proper job for C++ support in distutils2 that would be 
better. 

Notice that distutils2 is a fork of how distutils was in trunk last month, so 
it should be fairly simple to depend on it in your project, to benefit from new 
features etc. The goal is to push it back in the stdlib in 3.3. 

If you want to start a dev. branch of your project using distutils2, I am 
willing to help there.

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[issue1222585] C++ compilation support for distutils

[Brian Curtin]

Changes by Brian Curtin cur...@acm.org:


--
keywords: +needs review
stage:  - patch review

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[issue1222585] C++ compilation support for distutils

[Michael Droettboom]

Michael Droettboom mdb...@users.sourceforge.net added the comment:

This is a rather serious bug for matplotlib -- since the C++ compiler is
not correctly selected, it can't be built with many Unix compilers, such
as Sun Studio.

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[issue1222585] C++ compilation support for distutils

[Tarek Ziadé]

Tarek Ziadé ziade.ta...@gmail.com added the comment:

Has someone tried to apply it with a recent Python ?

I can work on it but I'll need some help from someone matplotlib or Sage
I guess..

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assignee:  - tarek

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[issue1222585] C++ compilation support for distutils

[Michael Droettboom]

Michael Droettboom mdb...@users.sourceforge.net added the comment:

I'm testing this against release25_maint and release26_maint as we
speak.  I'll post new patches when that's done.

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[issue1222585] C++ compilation support for distutils

[Michael Droettboom]

Michael Droettboom mdb...@users.sourceforge.net added the comment:

Attached is a patch against the release26-maint branch.  This works for
me on Sun Workshop 6.

Note that on Sun, the C compiler is 'cc' and the C++ compiler is 'CC',
but distutils uses 'cc' and 'c++'.  However, the CXX environment
variable now works (after applying the patch), so this is less of an
issue, if it can be considered a bug at all.

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Added file: http://bugs.python.org/file15389/py26_cxx_compiler.patch

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[issue1222585] C++ compilation support for distutils

[Michael Droettboom]

Michael Droettboom mdb...@users.sourceforge.net added the comment:

Here's another patch against release25_maint for the benefit of those
still using Python 2.5.  It's different only in some whitespace changes.

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Added file: http://bugs.python.org/file15390/py25_cxx_compiler.patch

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[issue1222585] C++ compilation support for distutils

[Brian Curtin]

Changes by Brian Curtin cur...@acm.org:


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[issue1222585] C++ compilation support for distutils

[Akira Kitada]

Changes by Akira Kitada akit...@gmail.com:


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[issue1222585] C++ compilation support for distutils

[Christian Heimes]

Christian Heimes added the comment:

Isn't it already fixed? Need to check it at the upcoming bug day.

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versions: +Python 2.6

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