+++ /dev/null
-dnl ########################### -*- Mode: M4 -*- ##############################
-dnl am_f77.m4 -- Determine the linker flags (e.g. `-L' and `-l') for
-dnl the Fortran 77 intrinsic and run-time libraries that
-dnl are required to successfully link a Fortran 77 program
-dnl or shared library.
-dnl
-dnl Copyright (C) 1998 Matthew D. Langston <langston@SLAC.Stanford.EDU>
-dnl
-dnl This file is free software; you can redistribute it and/or modify it
-dnl under the terms of the GNU General Public License as published by
-dnl the Free Software Foundation; either version 2 of the License, or
-dnl (at your option) any later version.
-dnl
-dnl This file is distributed in the hope that it will be useful, but
-dnl WITHOUT ANY WARRANTY; without even the implied warranty of
-dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-dnl General Public License for more details.
-dnl
-dnl You should have received a copy of the GNU General Public License
-dnl along with this file; if not, write to:
-dnl
-dnl Free Software Foundation, Inc.
-dnl Suite 330
-dnl 59 Temple Place
-dnl Boston, MA 02111-1307, USA.
-dnl ###########################################################################
-
-
-dnl Determine the linker flags (e.g. `-L' and `-l') for the Fortran 77
-dnl intrinsic and run-time libraries that are required to successfully
-dnl link a Fortran 77 program or shared library. The output variable
-dnl FLIBS is set to these flags.
-dnl
-dnl This macro is intended to be used in those situations when it is
-dnl necessary to mix, e.g. C++ and Fortran 77 source code into a single
-dnl program or shared library.
-dnl
-dnl For example, if object files from a C++ and Fortran 77 compiler must
-dnl be linked together, then the C++ compiler/linker must be used for
-dnl linking (since special C++-ish things need to happen at link time
-dnl like calling global constructors, instantiating templates, enabling
-dnl exception support, etc.).
-dnl
-dnl However, the Fortran 77 intrinsic and run-time libraries must be
-dnl linked in as well, but the C++ compiler/linker doesn't know how to
-dnl add these Fortran libraries. Hence, the macro
-dnl `AM_F77_LIBRARY_LDFLAGS' was created to determine these Fortran 77
-dnl libraries.
-dnl
-dnl Nearly all of this macro came from the `OCTAVE_FLIBS' macro in
-dnl `octave-2.0.13/aclocal.m4', and full credit should go to John
-dnl W. Eaton for writing this extremely useful macro. Thank you John.
-dnl
-dnl AM_F77_LIBRARY_LDFLAGS()
-AC_DEFUN([AM_F77_LIBRARY_LDFLAGS],
-[AC_MSG_CHECKING([for Fortran libraries])
-AC_REQUIRE([AC_PROG_FC])
-AC_REQUIRE([AC_CANONICAL_HOST])
-AC_CACHE_VAL(am_cv_flibs,
-[changequote(, )dnl
-dnl Write a minimal program and compile it with -v. I don't know what
-dnl to do if your compiler doesn't have -v...
-echo " END" > conftest.f
-foutput=`${FC} -v -o conftest conftest.f 2>&1`
-dnl
-dnl The easiest thing to do for xlf output is to replace all the commas
-dnl with spaces. Try to only do that if the output is really from xlf,
-dnl since doing that causes problems on other systems.
-dnl
-xlf_p=`echo $foutput | grep xlfentry`
-if test -n "$xlf_p"; then
- foutput=`echo $foutput | sed 's/,/ /g'`
-fi
-dnl
-ld_run_path=`echo $foutput | \
- sed -n -e 's/^.*LD_RUN_PATH *= *\([^ ]*\).*/\1/p'`
-dnl
-dnl We are only supposed to find this on Solaris systems...
-dnl Uh, the run path should be absolute, shouldn't it?
-dnl
-case "$ld_run_path" in
- /*)
- if test "$ac_cv_prog_gcc" = yes; then
- ld_run_path="-Xlinker -R -Xlinker $ld_run_path"
- else
- ld_run_path="-R $ld_run_path"
- fi
- ;;
- *)
- ld_run_path=
- ;;
-esac
-dnl
-flibs=
-lflags=
-dnl
-dnl If want_arg is set, we know we want the arg to be added to the list,
-dnl so we don't have to examine it.
-dnl
-want_arg=
-dnl
-for arg in $foutput; do
- old_want_arg=$want_arg
- want_arg=
-dnl
-dnl None of the options that take arguments expect the argument to
-dnl start with a -, so pretend we didn't see anything special.
-dnl
- if test -n "$old_want_arg"; then
- case "$arg" in
- -*)
- old_want_arg=
- ;;
- esac
- fi
- case "$old_want_arg" in
- '')
- case $arg in
- /*.a)
- exists=false
- for f in $lflags; do
- if test x$arg = x$f; then
- exists=true
- fi
- done
- if $exists; then
- arg=
- else
- lflags="$lflags $arg"
- fi
- ;;
- -bI:*)
- exists=false
- for f in $lflags; do
- if test x$arg = x$f; then
- exists=true
- fi
- done
- if $exists; then
- arg=
- else
- if test "$ac_cv_prog_gcc" = yes; then
- lflags="$lflags -Xlinker $arg"
- else
- lflags="$lflags $arg"
- fi
- fi
- ;;
- -lang* | -lcrt0.o | -lc | -lgcc)
- arg=
- ;;
- -[lLR])
- want_arg=$arg
- arg=
- ;;
- -[lLR]*)
- exists=false
- for f in $lflags; do
- if test x$arg = x$f; then
- exists=true
- fi
- done
- if $exists; then
- arg=
- else
- case "$arg" in
- -lkernel32)
- case "$canonical_host_type" in
- *-*-cygwin32)
- arg=
- ;;
- *)
- lflags="$lflags $arg"
- ;;
- esac
- ;;
- -lm)
- ;;
- *)
- lflags="$lflags $arg"
- ;;
- esac
- fi
- ;;
- -u)
- want_arg=$arg
- arg=
- ;;
- -Y)
- want_arg=$arg
- arg=
- ;;
- *)
- arg=
- ;;
- esac
- ;;
- -[lLR])
- arg="$old_want_arg $arg"
- ;;
- -u)
- arg="-u $arg"
- ;;
- -Y)
-dnl
-dnl Should probably try to ensure unique directory options here too.
-dnl This probably only applies to Solaris systems, and then will only
-dnl work with gcc...
-dnl
- arg=`echo $arg | sed -e 's%^P,%%'`
- SAVE_IFS=$IFS
- IFS=:
- list=
- for elt in $arg; do
- list="$list -L$elt"
- done
- IFS=$SAVE_IFS
- arg="$list"
- ;;
- esac
-dnl
- if test -n "$arg"; then
- flibs="$flibs $arg"
- fi
-done
-if test -n "$ld_run_path"; then
- flibs_result="$ld_run_path $flibs"
-else
- flibs_result="$flibs"
-fi
-changequote([, ])dnl
-am_cv_flibs="$flibs_result"])
-FLIBS="$am_cv_flibs"
-AC_SUBST(FLIBS)dnl
-AC_MSG_RESULT([$FLIBS])])
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