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| author | Olaf Lenz <olenz@icp.uni-stuttgart.de> | 2011-06-15 11:36:45 +0200 |
|---|---|---|
| committer | Peter Simons <simons@cryp.to> | 2011-06-15 11:40:11 +0200 |
| commit | 0f83111d8fd1f2be6603780f4da0114711ee51b6 (patch) | |
| tree | bbb7b455a0f5bc566e44a0b8f1a3841554a47b73 /m4/ax_mpi.m4 | |
| parent | 30056a7c7452c37ae401376319c7c19ab3746b38 (diff) | |
| download | autoconf-archive-0f83111d8fd1f2be6603780f4da0114711ee51b6.tar.gz | |
AX_PROG_{CC,CXX,FC}_MPI: new submissions
The new macros AX_PROG_CC_MPI, AX_PROG_CXX_MPI, AX_PROG_F77_MPI, and AX_PROG_FC_MPI
address several shortcomings found in AX_MPI. Further details can be found at
<http://lists.gnu.org/archive/html/autoconf-archive-maintainers/2011-05/msg00004.html>,
<http://lists.gnu.org/archive/html/autoconf-archive-maintainers/2011-06/msg00003.html>.
Diffstat (limited to 'm4/ax_mpi.m4')
| -rw-r--r-- | m4/ax_mpi.m4 | 29 |
1 files changed, 8 insertions, 21 deletions
diff --git a/m4/ax_mpi.m4 b/m4/ax_mpi.m4 index 8d0b490..5b2322c 100644 --- a/m4/ax_mpi.m4 +++ b/m4/ax_mpi.m4 @@ -19,26 +19,13 @@ # are needed for linking MPI (e.g. -lmpi or -lfmpi, if a special # MPICC/MPICXX/MPIF77/MPIFC was not found). # -# If you want to compile everything with MPI, you should use something -# like this for C: -# -# if test -z "$CC" && test -n "$MPICC"; then -# CC="$MPICC" -# fi -# AC_PROG_CC -# AX_MPI -# CC="$MPICC" -# LIBS="$MPILIBS $LIBS" -# -# and similar for C++ (change all instances of CC to CXX), Fortran 77 -# (with F77 instead of CC) or Fortran (with FC instead of CC). -# -# NOTE: The above assumes that you will use $CC (or whatever) for linking -# as well as for compiling. (This is the default for automake and most -# Makefiles.) -# -# The user can force a particular library/compiler by setting the -# MPICC/MPICXX/MPIF77/MPIFC and/or MPILIBS environment variables. +# Note that this macro should be used only if you just have a few source +# files that need to be compiled using MPI. In particular, you should +# neither overwrite CC/CXX/F77/FC with the values of +# MPICC/MPICXX/MPIF77/MPIFC, nor assume that you can use the same flags +# etc. as the standard compilers. If you want to compile a whole program +# using the MPI compiler commands, use one of the macros +# AX_PROG_{CC,CXX,FC}_MPI. # # ACTION-IF-FOUND is a list of shell commands to run if an MPI library is # found, and ACTION-IF-NOT-FOUND is a list of commands to run if it is not @@ -76,7 +63,7 @@ # modified version of the Autoconf Macro, you may extend this special # exception to the GPL to apply to your modified version as well. -#serial 7 +#serial 8 AU_ALIAS([ACX_MPI], [AX_MPI]) AC_DEFUN([AX_MPI], [ |