1 #serial 9 2 3 # Define some macros required for proper operation of code in lib/*.c 4 # on MSDOS/Windows systems. 5 6 # Copyright (C) 2000, 2001, 2004 Free Software Foundation, Inc. 7 # This file is free software; the Free Software Foundation 8 # gives unlimited permission to copy and/or distribute it, 9 # with or without modifications, as long as this notice is preserved. 10 11 # From Jim Meyering. 12 13 AC_DEFUN([gl_AC_DOS], 14 [ 15 AC_CACHE_CHECK([whether system is Windows or MSDOS], [ac_cv_win_or_dos], 16 [ 17 AC_TRY_COMPILE([], 18 [#if !defined _WIN32 && !defined __WIN32__ && !defined __MSDOS__ && !defined __CYGWIN__ 19 neither MSDOS nor Windows 20 #endif], 21 [ac_cv_win_or_dos=yes], 22 [ac_cv_win_or_dos=no]) 23 ]) 24 25 if test x"$ac_cv_win_or_dos" = xyes; then 26 ac_fs_accepts_drive_letter_prefix=1 27 ac_fs_backslash_is_file_name_separator=1 28 else 29 ac_fs_accepts_drive_letter_prefix=0 30 ac_fs_backslash_is_file_name_separator=0 31 fi 32 33 AH_VERBATIM(FILE_SYSTEM_PREFIX_LEN, 34 [#if FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX 35 # define FILE_SYSTEM_PREFIX_LEN(Filename) \ 36 ((Filename)[0] && (Filename)[1] == ':' ? 2 : 0) 37 #else 38 # define FILE_SYSTEM_PREFIX_LEN(Filename) 0 39 #endif]) 40 41 AC_DEFINE_UNQUOTED([FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX], 42 $ac_fs_accepts_drive_letter_prefix, 43 [Define on systems for which file names may have a so-called 44 `drive letter' prefix, define this to compute the length of that 45 prefix, including the colon.]) 46 47 AH_VERBATIM(ISSLASH, 48 [#if FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR 49 # define ISSLASH(C) ((C) == '/' || (C) == '\\') 50 #else 51 # define ISSLASH(C) ((C) == '/') 52 #endif]) 53 54 AC_DEFINE_UNQUOTED([FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR], 55 $ac_fs_backslash_is_file_name_separator, 56 [Define if the backslash character may also serve as a file name 57 component separator.]) 58 ]) 59
