New submission from Gabriel Somlo:
C programs using PyMem_MALLOC in pymem.h generate a warning when
-Wint-in-bool-context is enabled (typically through -Wall). In places where
-Werror is enabled (such as RPM build), this causes the build to fail with an
error that looks like:
...
In file included from /usr/include/python2.7/Python.h:78:0,
from netnsmodule.c:16:
netnsmodule.c: In function 'netns_nsexecvp':
/usr/include/python2.7/pymem.h:97:30: error: '*' in boolean context, suggest
'&&' instead [-Werror=int-in-bool-context]
( (type *) PyMem_MALLOC((n) * sizeof(type)) ) )
^
/usr/include/python2.7/pymem.h:75:15: note: in definition of macro
'PyMem_MALLOC'
: malloc((n) ? (n) : 1))
^
netnsmodule.c:61:10: note: in expansion of macro 'PyMem_NEW'
argv = PyMem_NEW(char *, argc + 1);
^~~~~~~~~
cc1: all warnings being treated as errors
error: command 'gcc' failed with exit status 1
...
I'm attaching a patch that fixes the issue, please consider applying!
Thanks,
--Gabriel
----------
files: Python-2.7.13-pymem-gcc7.patch
keywords: patch
messages: 298973
nosy: Gabriel Somlo
priority: normal
severity: normal
status: open
title: gcc7 throws warning when pymem.h development header is used
versions: Python 2.7
Added file: http://bugs.python.org/file47035/Python-2.7.13-pymem-gcc7.patch
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