[Scitech] Heads up - %configure and %cmake changes affecting MPI packages

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This change in redhat-rpm-config:

* Wed Jun 03 2020 Igor Raits <ignatenkobrain@xxxxxxxxxxxxxxxxx> - 158-1
- Add option to choose C/C++ toolchain

changed %_set_build_flags to also set the CC/CXX compiler variables:

  CC=%{__cc}; export CC ; \
  CXX=%{__cxx}; export CXX ; \

This breaks the relatively common construct for building MPI versions of packages:

export CC=mpicc
export CXX=mpicxx

For %configure you can change to:

%configure CC=mpicc CXX=mpicxx

For %cmake (this will also work with %configure) you'll need to do:

%define __cc mpicc
%define __cxx mpicxx

With koschei down (I presume it is due to the move) I think this has gone mostly unnoticed so far.


Orion Poplawski
Manager of NWRA Technical Systems          720-772-5637
NWRA, Boulder/CoRA Office             FAX: 303-415-9702
3380 Mitchell Lane                       orion@xxxxxxxx
Boulder, CO 80301                 https://www.nwra.com/

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