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- # ===========================================================================
- # https://www.gnu.org/software/autoconf-archive/ax_check_dos_filesys.html
- # ===========================================================================
- #
- # SYNOPSIS
- #
- # AX_CHECK_DOS_FILESYS_LIMITATIONS
- #
- # DESCRIPTION
- #
- # Check if the target is running on DOS. DOS doesn't allow a dot as the
- # first character, more than one dot, more than eight characters before a
- # dot, and just three letters after the dot. A DOS VM running under
- # Windows 9X does not have these restrictions. A DOS program can be
- # running in either environment, so its important to code accordingly.
- # Defines HAVE_DOS_FILESYS_LIMITATIONS if under DOS.
- #
- # Use in conjunction with AX_CHECK_PATHNAME_STYLE_DOS.
- #
- # LICENSE
- #
- # Copyright (c) 2008 Mark Elbrecht
- #
- # This program is free software; you can redistribute it and/or modify it
- # under the terms of the GNU General Public License as published by the
- # Free Software Foundation; either version 2 of the License, or (at your
- # option) any later version.
- #
- # This program is distributed in the hope that it will be useful, but
- # WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
- # Public License for more details.
- #
- # You should have received a copy of the GNU General Public License along
- # with this program. If not, see <https://www.gnu.org/licenses/>.
- #
- # As a special exception, the respective Autoconf Macro's copyright owner
- # gives unlimited permission to copy, distribute and modify the configure
- # scripts that are the output of Autoconf when processing the Macro. You
- # need not follow the terms of the GNU General Public License when using
- # or distributing such scripts, even though portions of the text of the
- # Macro appear in them. The GNU General Public License (GPL) does govern
- # all other use of the material that constitutes the Autoconf Macro.
- #
- # This special exception to the GPL applies to versions of the Autoconf
- # Macro released by the Autoconf Archive. When you make and distribute a
- # modified version of the Autoconf Macro, you may extend this special
- # exception to the GPL to apply to your modified version as well.
-
- #serial 5
-
- AU_ALIAS([ACX_CHECK_DOS_FILESYS], [AX_CHECK_DOS_FILESYS])
- AC_DEFUN([AX_CHECK_DOS_FILESYS_LIMITATIONS],
- [AC_MSG_CHECKING(for potential DOS filename limitations)
- AC_CACHE_VAL(ax_cv_dos_limitations,
- [AC_REQUIRE([AC_CANONICAL_HOST])
- ax_cv_dos_limitations="yes"
- case ${host_os} in
- *dos | *djgpp) ax_cv_dos_limitations="yes"
- esac
- ])
- AC_MSG_RESULT($ax_cv_dos_limitations)
- if test $ax_cv_dos_limitations = "yes"; then
- AC_DEFINE(HAVE_DOS_FILESYS_LIMITATIONS)
- fi
- ])
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