Python 2.7.14 Fails to compile on CentOS/RHEL7

[BrianSidebotham]

BPO	31744
Nosy	@malemburg, @ned-deily, @stratakis, @irushchyshyn

^{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 2017-10-11.13:01:38.465>
created_at = <Date 2017-10-10.12:17:41.433>
labels = ['build', 'invalid']
title = 'Python 2.7.14 Fails to compile on CentOS/RHEL7'
updated_at = <Date 2017-10-11.13:01:38.464>
user = 'https://bugs.python.org/BrianSidebotham'

bugs.python.org fields:

activity = <Date 2017-10-11.13:01:38.464>
actor = 'ned.deily'
assignee = 'none'
closed = True
closed_date = <Date 2017-10-11.13:01:38.465>
closer = 'ned.deily'
components = ['Build']
creation = <Date 2017-10-10.12:17:41.433>
creator = 'Brian Sidebotham'
dependencies = []
files = []
hgrepos = []
issue_num = 31744
keywords = []
message_count = 5.0
messages = ['304025', '304026', '304043', '304046', '304122']
nosy_count = 5.0
nosy_names = ['lemburg', 'ned.deily', 'cstratak', 'ishcherb', 'Brian Sidebotham']
pr_nums = []
priority = 'normal'
resolution = 'not a bug'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'compile error'
url = 'https://bugs.python.org/issue31744'
versions = ['Python 2.7']

[BrianSidebotham]

I am getting the following error when trying to compile Python 2.7.14 (and previous 2.7 versions) on CentOS and RHEL7.

The main problem is that CONFIG_ARGS does not exist. I've included the build. This RPATH is correct - it has to go through the RPM SPEC file so needs escaping like this to work.

Python 3.6.2 builds find like this, but Python 2.7 is failing to build. Have I missed something?

LDFLAGS='-Wl,-rpath=$\\$$ORIGIN/../lib' \
./configure --prefix=/opt/wsl \
--enable-shared \
--with-system-ffi \
--with-ensurepip=yes \
--enable-optimizations

...

ranlib libpython2.7.a
Modules/posixmodule.o: In function `posix_tmpnam':
/opt/jenkins/workspace/Build_WSL_Python2_on_RHEL7/BUILD/Python-2.7.14/./Modules/posixmodule.c:7642: warning: the use of `tmpnam_r' is dangerous, better use `mkstemp'
Modules/posixmodule.o: In function `posix_tempnam':
/opt/jenkins/workspace/Build_WSL_Python2_on_RHEL7/BUILD/Python-2.7.14/./Modules/posixmodule.c:7589: warning: the use of `tempnam' is dangerous, better use `mkstemp'
gcc -pthread -Wl,-rpath=RIGIN/../lib -fprofile-generate  -Xlinker -export-dynamic -o python \
		Modules/python.o \
		-L. -lpython2.7 -lpthread -ldl  -lutil   -lm  
LD_LIBRARY_PATH=/opt/jenkins/workspace/Build_WSL_Python2_on_RHEL7/BUILD/Python-2.7.14 ./python -E -S -m sysconfig --generate-posix-vars ;\
if test $? -ne 0 ; then \
	echo "generate-posix-vars failed" ; \
	rm -f ./pybuilddir.txt ; \
	exit 1 ; \
fi
Traceback (most recent call last):
  File "./setup.py", line 33, in <module>
    COMPILED_WITH_PYDEBUG = ('--with-pydebug' in sysconfig.get_config_var("CONFIG_ARGS"))
TypeError: argument of type 'NoneType' is not iterable
make[2]: *** [sharedmods] Error 1
make[2]: Leaving directory `/opt/jenkins/workspace/Build_WSL_Python2_on_RHEL7/BUILD/Python-2.7.14'
make[1]: *** [build_all_generate_profile] Error 2
make[1]: Leaving directory `/opt/jenkins/workspace/Build_WSL_Python2_on_RHEL7/BUILD/Python-2.7.14'
make: *** [profile-opt] Error 2
error: Bad exit status from /var/tmp/rpm-tmp.sFvDid (%build)

-bash-4.2# cd build/lib.linux-x86_64-2.7/
-bash-4.2# ls
_sysconfigdata.py _sysconfigdata.pyc
-bash-4.2# cat _sysconfigdata.py
# system configuration generated and used by the sysconfig module
build_time_vars = {'AC_APPLE_UNIVERSAL_BUILD': 0,
'AIX_GENUINE_CPLUSPLUS': 0,
'AR': 'ar',
'ARFLAGS': 'rc',
'ATHEOS_THREADS': 0,
'BASECFLAGS': '-fno-strict-aliasing',
'BASEMODLIBS': '',
'BEOS_THREADS': 0,
'BINDIR': '/opt/wsl/bin',
'BINLIBDEST': '/opt/wsl/lib/python2.7',
'BLDLIBRARY': '-L. -lpython2.7',
'BLDSHARED': 'gcc -pthread -shared -Wl,-rpath=RIGIN/../lib -fprofile-generate',
'BUILDEXE': '',
'BUILDPYTHON': 'python',
'CC': 'gcc -pthread',
'CCSHARED': '-fPIC',
'CFLAGS': '-fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes',
'CFLAGSFORSHARED': '-fPIC',
'CONFIGFILES': 'configure configure.ac acconfig.h pyconfig.h.in Makefile.pre.in',
'CONFINCLUDEDIR': '/opt/wsl/include',
'CONFINCLUDEPY': '/opt/wsl/include/python2.7',
'COREPYTHONPATH': ':plat-linux2:lib-tk:lib-old',
'COVERAGE_INFO': '/opt/jenkins/workspace/Build_WSL_Python2_on_RHEL7/BUILD/Python-2.7.14/coverage.info',
'COVERAGE_REPORT': '/opt/jenkins/workspace/Build_WSL_Python2_on_RHEL7/BUILD/Python-2.7.14/lcov-report',
'COVERAGE_REPORT_OPTIONS': '--no-branch-coverage --title "CPython lcov report"',
'CPPFLAGS': '-I. -IInclude -I./Include',
'CXX': 'g++ -pthread',
'C_THREADS': 0,
'DESTDIRS': '/opt/wsl /opt/wsl/lib /opt/wsl/lib/python2.7 /opt/wsl/lib/python2.7/lib-dynload',
'DESTLIB': '/opt/wsl/lib/python2.7',
'DESTPATH': '',
'DESTSHARED': '/opt/wsl/lib/python2.7/lib-dynload',
'DIRMODE': 755,
'DIST': 'README ChangeLog configure configure.ac acconfig.h pyconfig.h.in Makefile.pre.in Include Lib Misc Demo Ext-dummy',
'DISTDIRS': 'Include Lib Misc Demo Ext-dummy',
'DISTFILES': 'README ChangeLog configure configure.ac acconfig.h pyconfig.h.in Makefile.pre.in',
'DLINCLDIR': '.',
'DLLLIBRARY': '',
'DOUBLE_IS_ARM_MIXED_ENDIAN_IEEE754': 0,
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'ENABLE_IPV6': 1,
'ENSUREPIP': 'upgrade',
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'EXEMODE': 755,
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'EXTRATESTOPTS': '',
'EXTRA_CFLAGS': '',
'FILEMODE': 644,
'FLOCK_NEEDS_LIBBSD': 0,
'GETPGRP_HAVE_ARG': 0,
'GETTIMEOFDAY_NO_TZ': 0,
'GITBRANCH': '',
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'GLHACK': '-Dclear=GLclear',
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'LIBPL': '/opt/wsl/lib/python2.7/config',
'LIBRARY': 'libpython2.7.a',
'LIBRARY_OBJS': '\\',
'LIBS': '-lpthread -ldl -lutil',
'LIBSUBDIRS': 'lib-tk lib-tk/test lib-tk/test/test_tkinter \\',
'LINKCC': 'gcc -pthread',
'LINKFORSHARED': '-Xlinker -export-dynamic',
'LLVM_PROF_ERR': 'no',
'LLVM_PROF_FILE': '',
'LLVM_PROF_MERGER': 'true',
'LN': 'ln',
'LOCALMODLIBS': '',
'MACHDEP': 'linux2',
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'MODLIBS': '',
'MODOBJS': 'Modules/threadmodule.o Modules/signalmodule.o Modules/posixmodule.o Modules/errnomodule.o Modules/pwdmodule.o Modules/_sre.o Modules/_codecsmodule.o Modules/_weakref.o Modules/zipimport.o Modules/symtablemodule.o Modules/xxsubtype.o',
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'PGEN': 'Parser/pgen',
'PGENOBJS': '\\ \\',
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'PGO_PROF_GEN_FLAG': '-fprofile-generate',
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'PURIFY': '',
'PYLONG_BITS_IN_DIGIT': 0,
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'PYTHONFRAMEWORKDIR': 'no-framework',
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'PYTHONFRAMEWORKPREFIX': '',
'PYTHONPATH': ':plat-linux2:lib-tk:lib-old',
'PYTHON_FOR_BUILD': './python -E',
'PYTHON_FOR_REGEN': 'python2.7',
'PYTHON_HEADERS': '\\',
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'PY_CFLAGS': '-fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I. -IInclude -I./Include -fPIC -DPy_BUILD_CORE',
'PY_FORMAT_LONG_LONG': '"ll"',
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'Py_ENABLE_SHARED': 1,
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'SIZEOF_UINTPTR_T': 8,
'SIZEOF_VOID_P': 8,
'SIZEOF_WCHAR_T': 4,
'SIZEOF__BOOL': 1,
'SO': '.so',
'SRCDIRS': 'Parser Objects Python Modules',
'SRC_GDB_HOOKS': './Tools/gdb/libpython.py',
'STDC_HEADERS': 1,
'STRICT_SYSV_CURSES': "/* Don't use ncurses extensions */",
'STRINGLIB_HEADERS': '\\',
'SUBDIRS': '',
'SUBDIRSTOO': 'Include Lib Misc Demo',
'SYSLIBS': '-lm',
'SYS_SELECT_WITH_SYS_TIME': 1,
'TANH_PRESERVES_ZERO_SIGN': 1,
'TCLTK_INCLUDES': '',
'TCLTK_LIBS': '',
'TESTOPTS': '-l',
'TESTPATH': '',
'TESTPROG': './Lib/test/regrtest.py',
'TESTPYTHON': 'LD_LIBRARY_PATH=/opt/jenkins/workspace/Build_WSL_Python2_on_RHEL7/BUILD/Python-2.7.14 ./python -Wd -3 -E -tt',
'TESTPYTHONOPTS': '',
'THREADOBJ': 'Python/thread.o',
'TIME_WITH_SYS_TIME': 1,
'TKPATH': ':lib-tk',
'TM_IN_SYS_TIME': 0,
'UNICODE_OBJS': 'Objects/unicodeobject.o Objects/unicodectype.o',
'UNIVERSALSDK': '',
'USE_COMPUTED_GOTOS': 0,
'USE_TOOLBOX_OBJECT_GLUE': 0,
'VA_LIST_IS_ARRAY': 1,
'VERSION': '2.7',
'WANT_SIGFPE_HANDLER': 0,
'WANT_WCTYPE_FUNCTIONS': 0,
'WINDOW_HAS_FLAGS': 1,
'WITH_DOC_STRINGS': 1,
'WITH_DYLD': 0,
'WITH_LIBINTL': 0,
'WITH_NEXT_FRAMEWORK': 0,
'WITH_PYMALLOC': 1,
'WITH_THREAD': 1,
'WITH_TSC': 0,
'WITH_VALGRIND': 0,
'X87_DOUBLE_ROUNDING': 0,
'XMLLIBSUBDIRS': 'xml xml/dom xml/etree xml/parsers xml/sax',
'abs_builddir': '/opt/jenkins/workspace/Build_WSL_Python2_on_RHEL7/BUILD/Python-2.7.14',
'abs_srcdir': '/opt/jenkins/workspace/Build_WSL_Python2_on_RHEL7/BUILD/Python-2.7.14',
'build': 'x86_64-pc-linux-gnu',
'datarootdir': '/opt/wsl/share',
'exec_prefix': '/opt/wsl',
'host': 'x86_64-pc-linux-gnu',
'prefix': '/opt/wsl',
'srcdir': '.'}

[malemburg]

I'm not sure whether this is related, but your quoting for --rpath
doesn't appear to work:

On 10.10.2017 14:17, Brian Sidebotham wrote:

LDFLAGS='-Wl,-rpath=$\\$$ORIGIN/../lib' \
...
gcc -pthread -Wl,-rpath=RIGIN/../lib -fprofile-generate -Xlinker -export-dynamic -o python \
Modules/python.o \
-L. -lpython2.7 -lpthread -ldl -lutil -lm

The CONFIG_ARGS variable should always be set, so I assume that
your _sysconfigdata.py was generated in a previous broken build.

[stratakis]

Which CentOS/RHEL version do you have?

Could you provide the output of 'cat /etc/redhat-release' ?

[ned-deily]

Do you already have an existing version of Python 2.7 installed at the prefix location /opt/ws1? Because you are attempting to build with --enable-shared, the build may be picking up the already installed shared library. Try building without --enable-shared or with a unique prefix location and see if it works then.

[BrianSidebotham]

I'm not sure any of my emails came through to this ticket from my mail client. I think this can be closed and filed under "not a bug".

Here are the mails I sent.:

Hi Marc-Andre,

Thanks for engaging.

I fixed RPATH and now things are building successfully:

LDFLAGS='-Wl,-rpath=\\$$\$$ORIGIN/../lib' \
./configure --prefix=/opt/wsl \
--enable-shared \
--with-system-ffi \
--with-ensurepip=yes \
--enable-optimizations

Thank-you for your help.

Best Regards,

Brian.

-----

Hi Charalampos,

We're building for RHEL7 on the latest version.

-bash-4.2$ cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.4 (Maipo)

Best Regards,

Brian.

----

Hi Ned,

Thank-you for your advice. There was no python2 installed on the build box in /opt/wsl. Fixing the RPATH reference appears to have fixed the problem. Perhaps something in the makefile was getting eaten by the crazy escaping to get ORIGIN in the python executable. Now it looks correct:
-bash-4.2$ readelf -d ./python

Dynamic section at offset 0x3cd0 contains 31 entries:
Tag Type Name/Value
0x0000000000000001 (NEEDED) Shared library: [libpython2.7.so.1.0]
...
0x0000000000000001 (NEEDED) Shared library: [ld-linux-x86-64.so.2]
0x000000000000000f (RPATH) Library rpath: [$ORIGIN/../lib]

Best Regards,

Brian.