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(GNU Fortran): New. * doc/autoconf.texi (Language Choice): Document. * lib/autoconf/fortran.m4 (AC_FC_SRCEXT, AC_FC_FREEFORM): Assert the current language is Fortran.
78 lines
2.2 KiB
Plaintext
78 lines
2.2 KiB
Plaintext
# -*- Autotest -*-
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AT_BANNER([Fortran low level compiling/preprocessing macros.])
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# Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2, or (at your option)
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# any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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# 02111-1307, USA.
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# Since the macros which compile are required by most tests, check
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# them first. But remember that looking for a compiler is even more
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# primitive, so check those first.
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## --------------------- ##
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## Fortran 77 Compiler. ##
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## --------------------- ##
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AT_CHECK_MACRO([GNU Fortran 77],
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[[AC_LANG(Fortran 77)
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AC_LANG_COMPILER
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if AC_TRY_COMMAND([$F77 --version | grep GNU >&2]); then
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# Be sure to remove files which might be created by compilers that
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# don't support --version.
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rm -f a.exe a.out
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# Has GNU in --version.
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test "$G77" != yes &&
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AC_MSG_ERROR([failed to recognize GNU Fortran 77 compiler])
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else
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# Be sure to remove files which might be created by compilers that
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# don't support --version.
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rm -f a.exe a.out
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# Has not.
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test "$G77" = yes &&
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AC_MSG_ERROR([incorrectly recognized a GNU Fortran 77 compiler])
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fi
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]])
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## ------------------ ##
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## Fortran Compiler. ##
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## ------------------ ##
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AT_CHECK_MACRO([GNU Fortran],
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[[AC_LANG(Fortran)
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AC_LANG_COMPILER
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# No Fortran compiler is known not to support "*.f".
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AC_FC_SRCEXT([f])
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# GNU Fortran is known to support freeform.
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AC_FC_FREEFORM([],
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[AC_MSG_WARN([Fortran does not accept free-form source])])
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if test "$ac_compiler_gnu" = yes; then
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case $FCFLAGS in
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*-ffree-form*) ;;
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*) AC_MSG_ERROR([failed to recognize GNU Fortran's -ffree-form option.]);;
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esac
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fi
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]])
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