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conda-forge / cppyy-feedstock

A conda-smithy repository for cppyy.
BSD 3-Clause "New" or "Revised" License
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Downstream tests fail on emulator #52

Closed saraedum closed 2 years ago

saraedum commented 2 years ago

Testing the e-antic-feedstock, we get on ppc64:

import: 'pyeantic'
(Re-)building pre-compiled headers (options: -O2 -mavx); this may take a minute ...
warning: argument unused during compilation: '-mavx'
In file included from input_line_8:1:
./etc/dictpch/allLinkDefs.h:1:10: fatal error: 'etc/dictpch/core/thread/inc/LinkDef.h' file not found
#include "etc/dictpch/core/thread/inc/LinkDef.h"
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Error: ./bin/rootcling: Linkdef compilation failure
wlav commented 2 years ago

The -mavx flag is added if avx is in the output of sysctl machdep.cpu.features. That etc/dictpch/core/thread/inc/LinkDef.h should exist <site-packages>/cppyy_backend. I actually don't know how well ppc64 is supported; I haven't had a ppc64 machine in ages. You may want to test once with the CLING_STANDARD_PCH envar set to None. That is slower on startup, because all headers will be parsed every time, but it will let tests proceed to give a clear idea of what will happen.

saraedum commented 2 years ago

The files are simply missing from cppyy-cling it seems on some platforms, see https://github.com/conda-forge/cppyy-cling-feedstock/issues/42.

saraedum commented 2 years ago

Fixed in #43. (Sorry, I broke the CMakeLists.txt with a patch for cross-compilation.)