python-3.3.2-r2: Modules/xxlimited.c:17:error: #error Py_LIMITED_API is incompatible with Py_DEBUG, Py_TRACE_REFS, and Py_REF_DEBUG

[mmokrejs]

BPO	18883
Nosy	@bitdancer, @skrah
Files	build.log

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2013-08-30.13:57:35.332>
created_at = <Date 2013-08-30.13:27:32.337>
labels = ['build']
title = 'python-3.3.2-r2: Modules/xxlimited.c:17:error: #error Py_LIMITED_API is incompatible with Py_DEBUG, Py_TRACE_REFS, and Py_REF_DEBUG'
updated_at = <Date 2013-08-30.15:07:01.138>
user = 'https://bugs.python.org/mmokrejs'

bugs.python.org fields:

activity = <Date 2013-08-30.15:07:01.138>
actor = 'r.david.murray'
assignee = 'none'
closed = True
closed_date = <Date 2013-08-30.13:57:35.332>
closer = 'skrah'
components = []
creation = <Date 2013-08-30.13:27:32.337>
creator = 'mmokrejs'
dependencies = []
files = ['31520']
hgrepos = []
issue_num = 18883
keywords = []
message_count = 11.0
messages = ['196534', '196541', '196542', '196543', '196544', '196547', '196549', '196550', '196552', '196553', '196556']
nosy_count = 3.0
nosy_names = ['mmokrejs', 'r.david.murray', 'skrah']
pr_nums = []
priority = 'normal'
resolution = 'works for me'
stage = None
status = 'closed'
superseder = None
type = 'compile error'
url = 'https://bugs.python.org/issue18883'
versions = ['Python 3.3']

[mmokrejs]

Looks I cannot compile when python-3.3 was configured with --with-pydebug. I use Gentoo Linux, the -r2 shows they added some patches but should not matter I think.

building 'xxlimited' extension
x86_64-pc-linux-gnu-gcc -pthread -fPIC -Wno-unused-result -DDYNAMIC_ANNOTATIONS_ENABLED=1 -O2 -pipe -msse -msse2 -msse3 -mssse3 -msse4.1 -msse4.2 -msse4 -mavx -maes -mpclmul -mpopcnt -march=corei7-avx -fstack-protector-all -fwrapv -DPy_LIMITED_API=1 -IInclude -I. -I/mnt/1TB/var/tmp/portage/dev-lang/python-3.3.2-r2/work/Python-3.3.2/Include -I/mnt/1TB/var/tmp/portage/dev-lang/python-3.3.2-r2/work/x86_64-pc-linux-gnu -c /mnt/1TB/var/tmp/portage/dev-lang/python-3.3.2-r2/work/Python-3.3.2/Modules/xxlimited.c -o build/temp.linux-x86_64-3.3-pydebug/mnt/1TB/var/tmp/portage/dev-lang/python-3.3.2-r2/work/Python-3.3.2/Modules/xxlimited.o
In file included from /mnt/1TB/var/tmp/portage/dev-lang/python-3.3.2-r2/work/Python-3.3.2/Include/Python.h:68:0,
from /mnt/1TB/var/tmp/portage/dev-lang/python-3.3.2-r2/work/Python-3.3.2/Modules/xxlimited.c:17:
/mnt/1TB/var/tmp/portage/dev-lang/python-3.3.2-r2/work/Python-3.3.2/Include/object.h:65:2: error: #error Py_LIMITED_API is incompatible with Py_DEBUG, Py_TRACE_REFS, and Py_REF_DEBUG

I think make should ignore this error unless you fix xxlimited.c sources.

[skrah]

A similar issue was closed, see msg157249. The error looks deliberate
to me, so let's close this, too.

[mmokrejs]

Uh. I don't understand. So did you want to say I should not run configure --with-pydebug in python 3.3 or what? I am fine if you fix the Makefile not to exit on this particular file. I am missing something.

[bitdancer]

I'm curious how this error gets triggered. I build python --with-pydebug on Gentoo all the time, albeit from a checkout, and I've never seen it. I'm imagining that means it is a Gentoo bug. Well, not even really a bug, since Gentoo doesn't itself support emerging python in debug mode.

[mmokrejs]

See for what I did to Gentoo: http://bugs.python.org/issue18843#msg196520

[skrah]

Martin, msg196534 shows that you are building with -DPy_LIMITED_API=1.
You can either use the limited API or --with-pydebug, but not both.

[As I said in the other issue, IMHO it is better to use a minimal set
of build options when reporting bugs.]

[mmokrejs]

Hmm, but I did not add -DPy_LIMITED_API=1. Python 2.7.5 can be compiled using same configuration. Going back to the build.log file I see:

configure --prefix=/usr --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --libdir=/usr/lib64 --with-fpectl --enable-shared --disable-ipv6 --with-threads --infodir=${prefix}/share/info --mandir=${prefix}/share/man --with-computed-gotos --with-dbmliborder=gdbm --with-libc= --enable-loadable-sqlite-extensions --with-system-expat --with-system-ffi --with-pydebug --without-pymalloc --with-valgrind

I specified only "--with-pydebug --without-pymalloc --with-valgrind". So where does the limited API come from? Bug in configure.ac?

[skrah]

Well, these look like Gentoo build flags. Did you or "emerge" or
anything else export CFLAGS in the shell?

[skrah]

I think I understand now: If you used the strategy from msg196520,
of course you get the Gentoo flags.

What you really should do is download a release or get a checkout
from hg.python.org and build that _without_ using "emerge".

[mmokrejs]

So I conclude that you want to say that some of the configure flags is wrong? Which? I can surely report that at Gentoo. I still think Makefile should be changed so that it make does not even try to compile xxlimited.c if -DPy_LIMITED_API=1 is in CFLAGS regardless how that happened.

http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/dev-lang/python/

Look into the python-3.3.2-r2.ebuild file for what it does, and how does differ from 3.7.5-r2.ebuild which can be compiled fine through emerge abd thsoe 3 configure arguments I requested.

[bitdancer]

Python2 doesn't support the limited ABI, so that flag is a noop for 2.7.