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openmpi/config/ompi_get_libtool_linker_flags.m4
George Bosilca 29c75a4690 libtool 2.0 get confused if the source file is followed by -c (or any other
value that is not internally translated). In order to make all the version
of libtool happy, the simplest way is to have the source file at the end of
the command line.

This commit was SVN r8451.
2005-12-12 06:41:48 +00:00

107 строки
2.4 KiB
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dnl -*- shell-script -*-
dnl
dnl Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
dnl University Research and Technology
dnl Corporation. All rights reserved.
dnl Copyright (c) 2004-2005 The University of Tennessee and The University
dnl of Tennessee Research Foundation. All rights
dnl reserved.
dnl Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
dnl University of Stuttgart. All rights reserved.
dnl Copyright (c) 2004-2005 The Regents of the University of California.
dnl All rights reserved.
dnl $COPYRIGHT$
dnl
dnl Additional copyrights may follow
dnl
dnl $HEADER$
denl
AC_DEFUN([OMPI_CHECK_LINKER_FLAGS],[
#
# libtool has been created by this point
# Try to see if it will add any additional flags for dependant libraries
#
AC_MSG_CHECKING([for libtool-supplied linker flags])
libtool="$1"
extra_flags="$2"
# Get the directory where libtool lives
start="`pwd`"
d="`dirname $libtool`"
cd "$d"
libtool="`pwd`/libtool"
cd "$start"
unset d start
# Make a playground to work in
mkdir conftest.$$
cd conftest.$$
cat > foo.c <<EOF
int foo(void) { return 0; }
EOF
ompi_check_linker_flags_work() {
OMPI_LOG_MSG([$cmd], [yes])
eval $cmd >&5 2>&5
if test -n "[$]1"; then
output="`eval $cmd 2>/dev/null`"
fi
status="$?"
OMPI_LOG_MSG([\$? = $status], [yes])
if test "$status" != "0"; then
AC_MSG_RESULT([libtool error!])
AC_MSG_ERROR([Cannot continue])
fi
}
#
# First make a sample library with the current LDFLAGS and LIBS
#
cmd="$libtool --mode=compile --tag=CC $CC $CFLAGS -c -o foo.o foo.c"
ompi_check_linker_flags_work
cmd="$libtool --mode=link --tag=CC $CC $CFLAGS foo.lo $LDFLAGS $LIBS -o libfoo.la"
ompi_check_linker_flags_work
#
# Now fake linking to it and capture the output from libtool
#
cmd="$libtool --dry-run --mode=link --tag=CC $CC bar.lo libfoo.la -o bar $extra_flags"
ompi_check_linker_flags_work yes
eval "set $output"
extra_ldflags=
while test -n "[$]1"; do
case "[$]1" in
$CC) ;;
bar*) ;;
-I*) ;;
-L*) ;;
-R*) ;;
-lfoo) ;;
-o) ;;
*.so) ;;
*.a) ;;
*)
extra_ldflags="$extra_ldflags [$]1"
;;
esac
shift
done
if test -n "$extra_ldflags"; then
AC_MSG_RESULT([$extra_ldflags])
else
AC_MSG_RESULT([no extra flags])
fi
cd ..
rm -rf conftest.$$])dnl