| 1 | #serial 5
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| 2 |
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| 3 | # Define some macros required for proper operation of code in lib/*.c
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| 4 | # on MSDOS/Windows systems.
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| 5 |
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| 6 | # From Jim Meyering.
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| 7 |
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| 8 | AC_DEFUN([jm_AC_DOS],
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| 9 | [
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| 10 | AC_CACHE_CHECK([whether system is Windows or MSDOS], [ac_cv_win_or_dos],
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| 11 | [
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| 12 | AC_TRY_COMPILE([],
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| 13 | [#if !defined _WIN32 && !defined __WIN32__ && !defined __MSDOS__
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| 14 | neither MSDOS nor Windows
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| 15 | #endif],
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| 16 | [ac_cv_win_or_dos=yes],
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| 17 | [ac_cv_win_or_dos=no])
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| 18 | ])
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| 19 |
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| 20 | if test x"$ac_cv_win_or_dos" = xyes; then
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| 21 | ac_fs_accepts_drive_letter_prefix=1
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| 22 | ac_fs_backslash_is_file_name_separator=1
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| 23 | else
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| 24 | ac_fs_accepts_drive_letter_prefix=0
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| 25 | ac_fs_backslash_is_file_name_separator=0
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| 26 | fi
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| 27 |
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| 28 | AH_VERBATIM(FILESYSTEM_PREFIX_LEN,
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| 29 | [#if FILESYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX
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| 30 | # define FILESYSTEM_PREFIX_LEN(Filename) \
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| 31 | ((Filename)[0] && (Filename)[1] == ':' ? 2 : 0)
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| 32 | #else
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| 33 | # define FILESYSTEM_PREFIX_LEN(Filename) 0
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| 34 | #endif])
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| 35 |
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| 36 | AC_DEFINE_UNQUOTED([FILESYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX],
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| 37 | $ac_fs_accepts_drive_letter_prefix,
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| 38 | [Define on systems for which file names may have a so-called
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| 39 | `drive letter' prefix, define this to compute the length of that
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| 40 | prefix, including the colon.])
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| 41 |
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| 42 | AH_VERBATIM(ISSLASH,
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| 43 | [#if FILESYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR
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| 44 | # define ISSLASH(C) ((C) == '/' || (C) == '\\')
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| 45 | #else
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| 46 | # define ISSLASH(C) ((C) == '/')
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| 47 | #endif])
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| 48 |
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| 49 | AC_DEFINE_UNQUOTED([FILESYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR],
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| 50 | $ac_fs_backslash_is_file_name_separator,
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| 51 | [Define if the backslash character may also serve as a file name
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| 52 | component separator.])
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| 53 | ])
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