Fix undefined behaviour. * lib/bitrotate.h (rotl16, rotr16, rotl8, rotr8): Case x to 'unsigned int', to avoid shift operations on 'int'. * lib/xmemdup0.c (xmemdup0): Don't invoke memcpy with a zero size. * tests/test-count-leading-zeros.c (main): Use a random number that has as many bits as TYPE, not only 2*15 or 2*31 bits. * tests/test-count-trailing-zeros.c (main): Likewise. * tests/test-count-one-bits.c (main): Likewise. * tests/test-memmem.c: Don't include "null-ptr.h". (main): Use zerosize_ptr() instead of null_ptr(). * modules/memmem-tests (Files): Remove tests/null-ptr.h.

Description:
Access control lists of files.  (Unportable.)

Files:
lib/acl.h
lib/acl-internal.h
lib/acl-errno-valid.c
lib/acl_entries.c
lib/acl-internal.c
lib/get-permissions.c
lib/set-permissions.c
m4/acl.m4

Depends-on:
extern-inline
fstat
stdbool
sys_stat

configure.ac:
gl_FUNC_ACL

Makefile.am:
lib_SOURCES += acl-errno-valid.c acl-internal.c \
  get-permissions.c set-permissions.c

Include:
"acl.h"

Link:
$(LIB_ACL)

License:
GPL

Maintainer:
Paul Eggert, Jim Meyering