make fails when compiling Python 2.6 from source (posixmodule.c)

[Oguzeren]

BPO	37930
Nosy	@ned-deily, @pablogsal
Files	config.log: config 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 2019-08-23.18:59:13.947>
created_at = <Date 2019-08-23.13:49:47.329>
labels = ['build', 'expert-installation']
title = 'make fails when compiling Python 2.6 from source (posixmodule.c)'
updated_at = <Date 2019-10-21.19:12:30.446>
user = 'https://bugs.python.org/Oguzeren'

bugs.python.org fields:

activity = <Date 2019-10-21.19:12:30.446>
actor = 'gilles.bardoux'
assignee = 'none'
closed = True
closed_date = <Date 2019-08-23.18:59:13.947>
closer = 'ned.deily'
components = ['Installation']
creation = <Date 2019-08-23.13:49:47.329>
creator = 'Oguz_eren'
dependencies = []
files = ['48558']
hgrepos = []
issue_num = 37930
keywords = []
message_count = 4.0
messages = ['350283', '350302', '350325', '355100']
nosy_count = 4.0
nosy_names = ['ned.deily', 'pablogsal', 'Oguz_eren', 'gilles.bardoux']
pr_nums = []
priority = 'normal'
resolution = 'out of date'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'compile error'
url = 'https://bugs.python.org/issue37930'
versions = []

[Oguzeren]

I'm trying to compile Python 2.6.8 on Kubuntu 19.04.

Current system version is Python 2.7.16. See below the error message I receive, during make.

oguz@dikanka:$ tar -xvzf Python-2.6.8.tgz
oguz@dikanka:$ cd Python-2.6.8/

oguz@dikanka:~/Python-2.6.8$ ./configure
…
…

oguz@dikanka:~/Python-2.6.8$ make

…
…
gcc -pthread -Xlinker -export-dynamic -o python \
Modules/python.o \
libpython2.6.a -lpthread -ldl -lutil -lm
/usr/bin/ld: libpython2.6.a(posixmodule.o): in function posix_tmpnam': /home/oguz/Python-2.6.8/./Modules/posixmodule.c:7261: warning: the use of tmpnam_r' is dangerous, better use mkstemp' /usr/bin/ld: libpython2.6.a(posixmodule.o): in functionposix_tempnam':
/home/oguz/Python-2.6.8/./Modules/posixmodule.c:7216: warning: the use of tempnam' is dangerous, better use m
kstemp'
Segmentation fault (core dumped)
make: *** [Makefile:414: sharedmods] Error 139

I found this python bug to be very similar to my case, but it's a rather old bug : https://bugs.python.org/issue535545

Here it says, posixmodule fails because resource.h is not detected properly by configure. Similarly in my case, pyconfig.h file's HAVE_SYS_RESOURCE_H line is commented out. I also realized that my c lib headers are not under /usr/include/sys and /usr/include/bits. Instead, I can find them under the following locations :

oguz@dikanka:/usr/include/linux$ find /usr/include -name resource.h
/usr/include/asm-generic/resource.h
/usr/include/linux/resource.h
/usr/include/x86_64-linux-gnu/asm/resource.h
/usr/include/x86_64-linux-gnu/bits/resource.h
/usr/include/x86_64-linux-gnu/sys/resource.h

I tried symlinks to x86_64-linux-gnu/sys and x86_64-linux-gnu/bits, but the the issue persists.

Any ideas ? Thanks in advance!

[pablogsal]

Hi Oguz,

Sadly Python 2.6.8 is not supported anymore

[ned-deily]

Python 2.6 reached end-of-life in 2013, six years ago, and has not received any non-security bug fixes since 2010. We strongly recommend thst you migrate to a modern, supported version of Python, if not Python 3.7, then at least Python 2.7 which itself will reach end-of-life in 2020.

[gillesbardoux]

Hi Oguz,
You just need to change one line in Include/objimpl.h: replace "long double dummy" by "double dummy". Enjoy!

--- a/Include/objimpl.h
+++ b/Include/objimpl.h
@@ -248,7 +248,7 @@ typedef union _gc_head {
         union _gc_head *gc_prev;
         Py_ssize_t gc_refs;
     } gc;
-    long double dummy;  /* force worst-case alignment */
+    double dummy;  /* force worst-case alignment */
 } PyGC_Head;
 
 extern PyGC_Head *_PyGC_generation0;