##### http://autoconf-archive.cryp.to/acx_check_pathname_style.html
#
# SYNOPSIS
#
#   ACX_CHECK_PATHNAME_STYLE_DOS
#
# DESCRIPTION
#
#   Check if host OS uses DOS-style pathnames. This includes the use of
#   drive letters and backslashes. Under DOS, Windows, and OS/2,
#   defines HAVE_PATHNAME_STYLE_DOS and PATH_SEPARATOR to ';'.
#   Otherwise, defines PATH_SEPARATOR to ':'.
#
#   This macro depends on the AC_CANONICAL_HOST.
#
#   Use for enabling code to handle drive letters, backslashes in
#   filenames and semicolons in the PATH.
#
# LAST MODIFICATION
#
#   2000-07-19
#
# COPYLEFT
#
#   Copyright (c) 2000 Mark Elbrecht <snowball3@bigfoot.com>
#
#   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
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#
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#   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.
#
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AC_DEFUN([ACX_CHECK_PATHNAME_STYLE_DOS],
[AC_MSG_CHECKING(for Windows and DOS and OS/2 style pathnames)
AC_CACHE_VAL(acx_cv_pathname_style_dos,
[AC_REQUIRE([AC_CANONICAL_HOST])

acx_cv_pathname_style_dos="no"
case ${host_os} in
  *djgpp | *mingw32* | *emx*) acx_cv_pathname_style_dos="yes" ;;
esac
])
AC_MSG_RESULT($acx_cv_pathname_style_dos)
if test "$acx_cv_pathname_style_dos" = "yes"; then
  AC_DEFINE(HAVE_PATHNAME_STYLE_DOS,,[defined if running on a system with dos style paths])
  AC_DEFINE(PATH_SEPARATOR, ';')
else
  AC_DEFINE(PATH_SEPARATOR, ':')
fi
])