Macro: acx_check_dos_filesys

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# acx_check_dos_filesys

## Synopsis

`ACX_CHECK_DOS_FILESYS_LIMITATIONS`

## Version

1.1.1.1 (2001/07/26) Miscellaneous @ ac-archive-0.5.32

## Author

Mark Elbrecht <snowball3@bigfoot.com>

## 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 ACX_CHECK_PATHNAME_STYLE_DOS.

## M4 Source Code

    AC_DEFUN([ACX_CHECK_DOS_FILESYS_LIMITATIONS],
    [AC_MSG_CHECKING(for potential DOS filename limitations)
    AC_CACHE_VAL(acx_cv_dos_limitations,
    [AC_REQUIRE([AC_CANONICAL_HOST])
    acx_cv_dos_limitations="yes"
    case ${host_os} in
      *dos | *djgpp) acx_cv_dos_limitations="yes"
    esac
    ])
    AC_MSG_RESULT($acx_cv_dos_limitations)
    if test $acx_cv_dos_limitations = "yes"; then
      AC_DEFINE(HAVE_DOS_FILESYS_LIMITATIONS)
    fi
    ])