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Pass -o after -c for Fortran to avoid mpif77 ordering bug 

When running

  $ mpif77 -c example.f -o example.f.o

mpif77 recognizes -o and produces example.f.o, but when running

  $ mpif77 -o example.f.o -c example.f

the -o option is ignored and the object file is example.o.  Performing
the same experiment on the underlying compiler tool or with the mpicc
and mpiCC wrappers does not exhibit this behavior, so the issue appears
to be specific to mpif77.

Reported-by: Zhen Wang <zwang26@emory.edu>
This commit is contained in:
Brad King 2011-01-31 16:24:12 -05:00
parent 63d21c1f8e
commit 93f230e408
1 changed files with 2 additions and 1 deletions
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3
Modules/CMakeFortranInformation.cmake
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@ -168,9 +168,10 @@ SET(CMAKE_Fortran_ARCHIVE_APPEND "<CMAKE_AR> r <TARGET> <LINK_FLAGS> <OBJECTS>"
SET(CMAKE_Fortran_ARCHIVE_FINISH "<CMAKE_RANLIB> <TARGET>")
# compile a Fortran file into an object file
# (put -o after -c to workaround bug in at least one mpif77 wrapper)
IF(NOT CMAKE_Fortran_COMPILE_OBJECT)
SET(CMAKE_Fortran_COMPILE_OBJECT
"<CMAKE_Fortran_COMPILER> -o <OBJECT> <DEFINES> <FLAGS> -c <SOURCE>")
"<CMAKE_Fortran_COMPILER> <DEFINES> <FLAGS> -c <SOURCE> -o <OBJECT>")
ENDIF(NOT CMAKE_Fortran_COMPILE_OBJECT)
# link a fortran program