New submission from Louie Lu:
Using gcc-6.3.1 20170306 on Linux 4.10.1, it gave the warning:
gcc -pthread -c -Wno-unused-result -Wsign-compare -g -Og -Wall
-Wstrict-prototypes -std=c99 -Wextra -Wno-unused-result
-Wno-unused-parameter -Wno-missing-field-initializers
-Werror=implicit-function-declaration -I. -I./Include -DPy_BUILD_CORE -o
Python/pyctype.o Python/pyctype.c
:./Modules/posixmodule.c: In function ‘os_major_impl’:
./Modules/posixmodule.c:8584:13: warning: In the GNU C Library, "major" is
defined
by <sys/sysmacros.h>. For historical compatibility, it is
currently defined by <sys/types.h> as well, but we plan to
remove this soon. To use "major", include <sys/sysmacros.h>
directly. If you did not intend to use a system-defined macro
"major", you should undefine it after including <sys/types.h>.
return major(device);
^~~~~~~~~~~~~
./Modules/posixmodule.c: In function ‘os_minor_impl’:
./Modules/posixmodule.c:8601:13: warning: In the GNU C Library, "minor" is
defined
by <sys/sysmacros.h>. For historical compatibility, it is
currently defined by <sys/types.h> as well, but we plan to
remove this soon. To use "minor", include <sys/sysmacros.h>
directly. If you did not intend to use a system-defined macro
"minor", you should undefine it after including <sys/types.h>.
return minor(device);
^~~~~~~~~~~~~
./Modules/posixmodule.c: In function ‘os_makedev_impl’:
./Modules/posixmodule.c:8619:13: warning: In the GNU C Library, "makedev" is
defined
by <sys/sysmacros.h>. For historical compatibility, it is
currently defined by <sys/types.h> as well, but we plan to
remove this soon. To use "makedev", include <sys/sysmacros.h>
directly. If you did not intend to use a system-defined macro
"makedev", you should undefine it after including <sys/types.h>.
return makedev(major, minor);
^~~~~~~~~~~~~~~~~~~~~
The problem introduce in glibc 2.25, going to deprecate the definition of
'major', 'minor', and 'makedev' by sys/types.h. And the autoconf didn't change
the behavior of `AC_HEADER_MAJOR`, see:
https://lists.gnu.org/archive/html/autoconf/2016-08/msg00014.html
There is a workaround path for this in libvirt, which take from autoconf patch,
see:
https://www.redhat.com/archives/libvir-list/2016-September/msg00459.html
----------
components: Extension Modules
messages: 291260
nosy: louielu
priority: normal
severity: normal
status: open
title: Compiling warning in Modules/posixmodule.c
type: compile error
versions: Python 3.7
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue30013>
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