• Paul Eggert's avatar
    dirname: move m4/dos.m4 functionality into lib/dosname.h · 3d50b604
    Paul Eggert authored
    m4/dos.m4 needs to go.  It laboriously invokes the C compiler, and
    extracts symbols from it, puts them into config.h; but it's much
    easier to use the symbols directly.  filename.h already does this,
    but it disagrees with dos.m4 in some respects.  This patch
    introduces a different include file dosname.h that packages up
    dos.m4, and then later we can work on merging filename.h and
    dosname.h.  Applications that need only the easy-to-configure
    symbols should consider including dosname.h rather than dirname.h.
    * NEWS: Mention incompatible changes.
    * m4/dos.m4: Remove.
    * lib/dosname.h, modules/dosname: New files.
    * lib/dirname.h (ISSLASH, FILE_SYSTEM_PREFIX_LEN):
    (FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE):
    (IS_ABSOLUTE_FILE_NAME, IS_RELATIVE_FILE_NAME): Move to lib/dosname.h.
    * lib/at-func.c, lib/at-func2.c, lib/openat.c, lib/savewd.c:
    Include dosname.h, not dirname.h.
    * lib/rmdir.c, lib/stat.c, lib/unlink.c, lib/unlinkat.c:
    Include dosname.h, for definitions of symbols like ISSLASH
    that used to be in config.h.
    * m4/dirname.m4 (gl_DIRNAME_LGPL): Do not require gl_AC_DOS.
    * m4/rmdir.m4 (gl_FUNC_RMDIR): Likewise.
    * m4/stat.m4 (gl_FUNC_STAT): Likewise.
    * m4/unlink.m4 (gl_FUNC_UNLINK): Likewise.
    * modules/dirname-lgpl (Files): Omit m4/dos.m4.
    * modules/rmdir (Files): Likewise.
    * modules/stat (Files): Likewise.
    * modules/unlink (Files): Likewise.
    * modules/dirname-lgpl (Depends-on): Add dosname.
    * modules/lstat (Depends-on): Likewise.
    * modules/openat (Depends-on): Likewise.
    * modules/rmdir (Depends-on): Likewise.
    * modules/savewd (Depends-on): Likewise.
    * modules/stat (Depends-on): Likewise.
    * modules/unlink (Depends-on): Likewise.
    * modules/openat (Depends-on): Remove dirname-lgpl.
    * modules/savewd (Depends-on): Likewise.
    * tests/test-dirname.c: Do not use removed symbols like
    FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR.  Instead, use
    the remaining symbols, e.g., ISSLASH ('\\').
    3d50b604