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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 <[email protected]>
Brad King пре 15 година
родитељ
комит
93f230e408
1 измењених фајлова са 2 додато и 1 уклоњено
  1. 2 1
      Modules/CMakeFortranInformation.cmake

+ 2 - 1
Modules/CMakeFortranInformation.cmake

@@ -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