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#serial 9
# Define some macros required for proper operation of code in lib/*.c
# on MSDOS/Windows systems.
# Copyright (C) 2000, 2001, 2004 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# From Jim Meyering.
AC_DEFUN([gl_AC_DOS],
[
AC_CACHE_CHECK([whether system is Windows or MSDOS], [ac_cv_win_or_dos],
[
AC_TRY_COMPILE([],
[#if !defined _WIN32 && !defined __WIN32__ && !defined __MSDOS__ && !defined __CYGWIN__
neither MSDOS nor Windows
#endif],
[ac_cv_win_or_dos=yes],
[ac_cv_win_or_dos=no])
])
if test x"$ac_cv_win_or_dos" = xyes; then
ac_fs_accepts_drive_letter_prefix=1
ac_fs_backslash_is_file_name_separator=1
else
ac_fs_accepts_drive_letter_prefix=0
ac_fs_backslash_is_file_name_separator=0
fi
AH_VERBATIM(FILE_SYSTEM_PREFIX_LEN,
[#if FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX
# define FILE_SYSTEM_PREFIX_LEN(Filename) \
((Filename)[0] && (Filename)[1] == ':' ? 2 : 0)
#else
# define FILE_SYSTEM_PREFIX_LEN(Filename) 0
#endif])
AC_DEFINE_UNQUOTED([FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX],
$ac_fs_accepts_drive_letter_prefix,
[Define on systems for which file names may have a so-called
`drive letter' prefix, define this to compute the length of that
prefix, including the colon.])
AH_VERBATIM(ISSLASH,
[#if FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR
# define ISSLASH(C) ((C) == '/' || (C) == '\\')
#else
# define ISSLASH(C) ((C) == '/')
#endif])
AC_DEFINE_UNQUOTED([FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR],
$ac_fs_backslash_is_file_name_separator,
[Define if the backslash character may also serve as a file name
component separator.])
])
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