#! /bin/sh
#
# (C) 2006 by Argonne National Laboratory.
# See COPYRIGHT in top-level directory.
#
# mpicxx
# Simple script to compile and/or link MPI programs.
# This script knows the default flags and libraries, and can handle
# alternative C++ compilers and the associated flags and libraries.
# The important terms are:
# includedir, libdir - Directories containing an *installed* mpich
# prefix, execprefix - Often used to define includedir and libdir
# CXX - C compiler
# WRAPPER_CXXFLAGS - Any special flags needed to compile
# WRAPPER_LDFLAGS - Any special flags needed to link
# WRAPPER_LIBS - Any special libraries needed in order to link
#
# We assume that (a) the C++ compiler can both compile and link programs
#
# Handling of command-line options:
# This is a little tricky because some options may contain blanks.
#
# Special issues with shared libraries - todo
#
# --------------------------------------------------------------------------
# Set the default values of all variables.
#
# Directory locations: Fixed for any MPI implementation
prefix=__PREFIX_TO_BE_FILLED_AT_INSTALL_TIME__
exec_prefix=__EXEC_PREFIX_TO_BE_FILLED_AT_INSTALL_TIME__
sysconfdir=__SYSCONFDIR_TO_BE_FILLED_AT_INSTALL_TIME__
includedir=__INCLUDEDIR_TO_BE_FILLED_AT_INSTALL_TIME__
libdir=__LIBDIR_TO_BE_FILLED_AT_INSTALL_TIME__
# Default settings for compiler, flags, and libraries
CXX="@CXX@"
MPICH_VERSION="@MPICH_VERSION@"
enable_wrapper_rpath="@enable_wrapper_rpath@"
@cxx_shlib_conf@
# Internal variables
# Show is set to echo to cause the compilation command to be echoed instead
# of executed.
Show=eval
#
# End of initialization of variables
#---------------------------------------------------------------------
# Environment Variables.
# The environment variables MPICH_CXX may be used to override the
# default choices.
# In addition, if there is a file $sysconfdir/mpicxx-$CXXname.conf,
# where CXXname is the name of the compiler with all spaces replaced by hyphens
# (e.g., "CC -64" becomes "CC--64", that file is sources, allowing other
# changes to the compilation environment. See the variables used by the
# script (defined above)
# Added MPICH_CXX_OLD, MPICH_CXX can be used to prefix CXX
# with external utility, e.g. setenv MPICH_CXX 'eval linkcache $MPICH_CXX_OLD'
if [ -n "$MPICH_CXX" ] ; then
MPICH_CXX_OLD="$CXX"
CXX="$MPICH_CXX"
CXXname=`echo $CXX | sed 's/ /-/g'`
if [ -s $sysconfdir/mpicxx-$CXXname.conf ] ; then
. $sysconfdir/mpicxx-$CXXname.conf
fi
fi
# Allow a profiling option to be selected through an environment variable
if [ -n "$MPICXX_PROFILE" ] ; then
profConf=$MPICXX_PROFILE
fi
#
# ------------------------------------------------------------------------
# Argument processing.
# This is somewhat awkward because of the handling of arguments within
# the shell. We want to handle arguments that include spaces without
# loosing the spacing (an alternative would be to use a more powerful
# scripting language that would allow us to retain the array of values,
# which the basic (rather than enhanced) Bourne shell does not.
#
# Look through the arguments for arguments that indicate compile only.
# If these are *not* found, add the library options
linking=yes
allargs=""
interlib_deps=yes
for arg in "$@" ; do
# Set addarg to no if this arg should be ignored by the C compiler
addarg=yes
qarg=$arg
case $arg in
# ----------------------------------------------------------------
# Compiler options that affect whether we are linking or no
-c|-S|-E|-M|-MM)
# The compiler links by default
linking=no
;;
# ----------------------------------------------------------------
# Options that control how we use mpicxx (e.g., -show,
# -cxx=* -config=*
-static)
interlib_deps=no
;;
-echo)
addarg=no
set -x
;;
-cxx=*)
CXX=`echo A$arg | sed -e 's/A-cxx=//g'`
addarg=no
;;
# Backwards compatibility for MPICH1 - scripts
-CC=*)
CXX=`echo A$arg | sed -e 's/A-CC=//g'`
addarg=no
;;
-show)
addarg=no
Show=echo
;;
-config=*)
addarg=no
CXXname=`echo A$arg | sed -e 's/A-config=//g'`
if [ -s "$sysconfdir/mpicxx-$CXXname.conf" ] ; then
. "$sysconfdir/mpicxx-$CXXname.conf"
else
echo "Configuration file mpicxx-$CXXname.conf not found"
fi
;;
-compile-info|-compile_info)
# -compile_info included for backward compatibility
Show=echo
addarg=no
;;
-link-info|-link_info)
# -link_info included for backward compatibility
Show=echo
addarg=no
;;
-v)
# Pass this argument to the compiler as well.
echo "mpicxx for MPICH version $MPICH_VERSION"
# if there is only 1 argument, it must be -v.
if [ "$#" -eq "1" ] ; then
linking=no
fi
;;
-profile=*)
# Pass the name of a profiling configuration. As
# a special case, lib<name>.so or lib<name>.la may be used
# if the library is in $libdir
profConf=`echo A$arg | sed -e 's/A-profile=//g'`
addarg=no
# Loading the profConf file is handled below
;;
-nativelinking)
# Internal option to use native compiler for linking without MPI libraries
nativelinking=yes
addarg=no
;;
-help)
NC=`echo "$CXX" | sed 's%\/% %g' | awk '{print $NF}' -`
if [ -f "$sysconfdir/mpixxx_opts.conf" ] ; then
. $sysconfdir/mpixxx_opts.conf
echo " -cxx=xxx - Reset the native compiler to xxx."
else
if [ -f "./mpixxx_opts.conf" ] ; then
. ./mpixxx_opts.conf
echo " -cxx=xxx - Reset the native compiler to xxx."
fi
fi
exit 0
;;
# -----------------------------------------------------------------
# Other arguments. We are careful to handle arguments with
# quotes (we try to quote all arguments in case they include
# any spaces)
*\"*)
qarg="'"$arg"'"
;;
*\'*)
qarg='\"'"$arg"'\"'
;;
*)
qarg="'$arg'"
;;
esac
if [ $addarg = yes ] ; then
allargs="$allargs $qarg"
fi
done
if [ $# -eq 0 ] ; then
echo "Error: Command line argument is needed!"
"$0" -help
exit 1
fi
# -----------------------------------------------------------------------
# Derived variables. These are assembled from variables set from the
# default, environment, configuration file (if any) and command-line
# options (if any)
cxxlibs=
if [ "@MPICXXLIBNAME@" != "@MPILIBNAME@" ] ; then
cxxlibs="-l@MPICXXLIBNAME@"
fi
PROFILE_FOO=
# Handle the case of a profile switch
if [ -n "$profConf" ] ; then
profConffile=
if [ -s "$libdir/lib$profConf.a" -o -s "$libdir/lib$profConf.so" ] ; then
PROFILE_FOO="-l$profConf"
elif [ -s "$sysconfdir/$profConf.conf" ] ; then
profConffile="$sysconfdir/$profConf.conf"
elif [ -s "$profConf.conf" ] ; then
profConffile="$profConf.conf"
else
echo "Profiling configuration file $profConf.conf not found in $sysconfdir"
fi
if [ -n "$profConffile" -a -s "$profConffile" ] ; then
. $profConffile
fi
fi
final_cxxflags="@MPICH_MPICXX_CXXFLAGS@ @WRAPPER_CXXFLAGS@"
final_cppflags="@MPICH_MPICXX_CPPFLAGS@ @WRAPPER_CPPFLAGS@"
final_ldflags="@MPICH_MPICXX_LDFLAGS@ @WRAPPER_LDFLAGS@"
final_libs="@MPICH_MPICXX_LIBS@"
if test "@INTERLIB_DEPS@" = "no" -o "${interlib_deps}" = "no" ; then
final_ldflags="${final_ldflags} @LDFLAGS@"
final_libs="${final_libs} @LIBS@ @WRAPPER_LIBS@"
fi
# A temporary statement to invoke the compiler
# Place the -L before any args incase there are any mpi libraries in there.
# Eventually, we'll want to move this after any non-MPI implementation
# libraries
if [ "$linking" = yes ] ; then
# Attempt to encode rpath info into the executable if the user has not
# disabled rpath usage and some flavor of rpath makes sense on this
# platform.
# TODO configure and config.rpath are computing more sophisticated rpath
# schemes than this simple one. Consider updating this logic accordingly.
if test "X$enable_wrapper_rpath" = "Xyes" ; then
eval rpath_flags=\"${hardcode_libdir_flag_spec}\"
else
rpath_flags=""
fi
if [ "$nativelinking" = yes ] ; then
$Show $CXX ${final_cppflags} $PROFILE_INCPATHS ${final_cxxflags} ${final_ldflags} $allargs -I$includedir
rc=$?
else
$Show $CXX ${final_cppflags} $PROFILE_INCPATHS ${final_cxxflags} ${final_ldflags} $allargs -I$includedir -L$libdir $cxxlibs $PROFILE_PRELIB $PROFILE_FOO $rpath_flags -l@MPILIBNAME@ @LPMPILIBNAME@ $PROFILE_POSTLIB ${final_libs}
rc=$?
fi
else
$Show $CXX ${final_cppflags} $PROFILE_INCPATHS ${final_cxxflags} $allargs -I$includedir
rc=$?
fi
exit $rc