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Test failure while building cpython

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  Test failure while building cpython Adam Bishop <Adam.Bishop@ja.net> - 2014-08-20 23:05 +0000

#76683 — Test failure while building cpython

I'm trying to build python 3.3.2 from source packages provided by Red Hat under mock.

The build itself works,but one specific test is failing:
  
   ======================================================================
   FAIL: test_sysconfig_module (distutils.tests.test_sysconfig.SysconfigTestCase)
   ----------------------------------------------------------------------
   Traceback (most recent call last):
     File "/builddir/build/BUILD/Python-3.3.2/Lib/distutils/tests/test_sysconfig.py", line 134, in test_sysconfig_module
       self.assertEqual(global_sysconfig.get_config_var('CFLAGS'), sysconfig.get_config_var('CFLAGS'))
   AssertionError: '-Wno-unused-result -DDYNAMIC_ANNOTATIONS_ENABLED=1 -O2 -g -pipe -Wall -Wp,-D_FO [truncated]... != '-Wno-unused-result -DDYNAMIC_ANNOTATIONS_ENABLED=1 -O2 -g -pipe -Wall -Wp,-D_FO [truncated]...
   - -Wno-unused-result -DDYNAMIC_ANNOTATIONS_ENABLED=1 -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches   -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -I/usr/include-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches   -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv  -I/usr/include-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches   -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv   -O1
   ?                                                                                                                                                                                                                                                                                                                                                                                                                                       --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
   + -Wno-unused-result -DDYNAMIC_ANNOTATIONS_ENABLED=1 -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches   -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -I/usr/include-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches   -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv
   
   
   ----------------------------------------------------------------------
   Ran 189 tests in 1.778s

Obviously I could simply disable the test[1], but this requires patching the source package, which I'd rather avoid because I don't fully understand what case this test is trying to detect.

Is anyone able to indicate what the test is looking for and what might cause it to fail? I don't see how the CFLAGS used in the build process could change during the test run.

Other details: CentOS 7 x86_64, GCC 4.8.2, Python 3.3.2, mock 1.1.41

[1] https://github.com/python/cpython/blob/edc966f9c5bc9291d2b7009f600e243142cf8a22/Lib/distutils/tests/test_sysconfig.py#L127-L130

Thanks,

Adam Bishop

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