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FindMPI: Fix multiple configure runs

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Due to a erroneous logical dependency on a temporary variable, FindMPI
would depend its FOUND status on the set of flags needed to support
compiler-implicit MPI support after the first configure run.

This behavior is especially causing a misreported NOT FOUND status after
the first run on MPI implementations without MPI compiler like MS-MPI or
MPICH2 on Windows.
This commit is contained in:
Christian Pfeiffer 2017-12-05 12:31:56 +01:00
parent 7746fdb2fe
commit 2047eb360d
1 changed files with 1 additions and 1 deletions
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2
Modules/FindMPI.cmake
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@ -1336,7 +1336,7 @@ foreach(LANG IN ITEMS C CXX Fortran)
set(MPI_${LANG}_FIND_VERSION_EXACT ${MPI_FIND_VERSION_EXACT})
unset(MPI_${LANG}_REQUIRED_VARS)
if (MPI_${LANG}_WRAPPER_FOUND OR MPI_${LANG}_GUESS_FOUND)
if (NOT "${MPI_${LANG}_COMPILER}" STREQUAL "${CMAKE_${LANG}_COMPILER}")
foreach(mpilibname IN LISTS MPI_${LANG}_LIB_NAMES)
list(APPEND MPI_${LANG}_REQUIRED_VARS "MPI_${mpilibname}_LIBRARY")
endforeach()