I tried to install cffi on AIX 7.1 using xlc_r and gcc with this last one I got the following error
root@test[../python/] /opt/freeware/bin/pip install cffi
Collecting cffi
Using cached cffi-1.10.0.tar.gz
Complete output from command python setup.py egg_info:
gcc: error: unrecognized command line option '-qmaxmem=16384'
gcc: error: unrecognized command line option '-qmaxmem=16384'
No working compiler found, or bogus compiler options
passed to the compiler from Python's distutils module.
See the error messages above.
(If they are about -mno-fused-madd and you are on OS/X 10.8,
----------------------------------------