acl: add support for OSF/1 5.1

[Bruno Haible]

Jim,

This proposed patch fixes the copy-file testsuite failures on Tru64.
Three problems had to be handled:
  - The ACL related functions are in libpacl.a, not in libacl as on Linux.
  - The acl_get_fd and acl_set_fd functions conform to an older draft
    (draft 13) of the abandoned POSIX spec. They take one more argument.
    Furthermore they are defined as macros - which makes it harder to define
    a replacement.
  - The acl_free function is only applicable to an 'acl_t', not to a 'char *'.
    A function acl_free_text exists for the latter.

OK to commit?    


2008-05-22  Bruno Haible  <address@hidden>

        Add support for ACLs on OSF/1.
        * lib/acl-internal.h (acl_get_fd, acl_set_fd): New inline function
        replacements.
        (acl_free_text): New macro fallback.
        * lib/acl_entries.c (acl_entries): Use acl_free_text instead of
        acl_free.
        * m4/acl.m4 (gl_FUNC_ACL): Look also in libpacl library. Test for
        acl_free_text function. Require AC_C_INLINE.

0002-Add-support-for-ACLs-on-OSF-1.patch
Description: Text Data