> 3. Apply 0003-*.patch - adding support for POSIX ACLs. This feature is
> fully compatible with classic Linux permissions but it is not ready
> to be used with more detailed Solaris/NTFSv4 ACLs. Anyway, once
> these ACLs becomes wide used, it will be possible to handle these in
> parallel with POSIX. I hope that this feature is very useful for
> quite a lot of users that are already using POSIX ACLs.
>
> We are using the same header keywords in tar's posix archive format
> as star uses. POSIX ACLs are then portable between both tools, star and
> GNU tar.
>
> Same way as in --xattrs patch is done, --no-acls option is added by
> this patch and as before possible warnings during writing ACLs may be
> suppressed by using of the '--warning=no-xattr-write option'.
>
> This feature may be disabled by --without-posix-acls during
> ./configure phase.
Attaching patch that avoids linking against -lacl when --without-posix-acls is
used.
diff --git a/configure.ac b/configure.ac
index b2cffec..d68c121 100644
--- a/configure.ac
+++ b/configure.ac
@@ -70,6 +70,29 @@ if test $diff_cv_st_fstype_string = yes; then
[Define if struct stat has a char st_fstype[] member.])
fi
+# even if we use gnulib's acl.h with integrated m4 file later on (used because
+# of very useful file_has_acl() function) we need following checks that restrict
+# tar to use POSIX.1e ACLs only.
+AC_ARG_WITH([posix-acls],
+ AS_HELP_STRING([--without-posix-acls],
+ [do not use POSIX.1e access control lists]),
+ [with_posix_acls=no])
+if test "x$with_posix_acls" != "xno"; then
+ AC_CHECK_HEADERS(sys/acl.h,, [with_posix_acl=no])
+ AC_SEARCH_LIBS([acl_get_file], [acl pacl],, [with_posix_acl=no])
+ AC_SEARCH_LIBS([acl_get_fd], [acl pacl],, [with_posix_acl=no])
+ AC_SEARCH_LIBS([acl_set_file], [acl pacl],, [with_posix_acl=no])
+ AC_SEARCH_LIBS([acl_set_fd], [acl pacl],, [with_posix_acl=no])
+ AC_SEARCH_LIBS([acl_to_text], [acl pacl],, [with_posix_acl=no])
+ AC_SEARCH_LIBS([acl_from_text], [acl pacl],, [with_posix_acl=no])
+ if test "x$with_posix_acls" != xno; then
+ AC_DEFINE(HAVE_POSIX_ACLS,,[Define when we have working POSIX acls])
+ fi
+else
+ # disable acls in gnulib's checks
+ export enable_acl=no
+fi
+
AC_TYPE_SIGNAL
AC_TYPE_MODE_T
AC_TYPE_PID_T
@@ -92,25 +115,6 @@ tar_PAXUTILS
AC_CHECK_FUNCS_ONCE([fchmod fchown fsync lstat mkfifo readlink symlink])
-# we use gnulib's acl.h - because of very useful file_has_acl() function. M4
-# file from gnulib/acl does a quite good job of course. The problem is that
-# this function works on wide list of platforms and we need to restrict tar to
-# use POSIX.1e ACLs only.
-AC_ARG_WITH([posix-acls],
- AS_HELP_STRING([--without-posix-acls],
- [do not use POSIX.1e access control lists]),
- [with_posix_acls=no])
-AC_CHECK_HEADERS(sys/acl.h,, [with_posix_acl=no])
-AC_SEARCH_LIBS([acl_get_file], [acl pacl],, [with_posix_acl=no])
-AC_SEARCH_LIBS([acl_get_fd], [acl pacl],, [with_posix_acl=no])
-AC_SEARCH_LIBS([acl_set_file], [acl pacl],, [with_posix_acl=no])
-AC_SEARCH_LIBS([acl_set_fd], [acl pacl],, [with_posix_acl=no])
-AC_SEARCH_LIBS([acl_to_text], [acl pacl],, [with_posix_acl=no])
-AC_SEARCH_LIBS([acl_from_text], [acl pacl],, [with_posix_acl=no])
-if test "x$with_posix_acls" != xno; then
- AC_DEFINE(HAVE_POSIX_ACLS,,[Define when we have working POSIX acls])
-fi
-
AC_CHECK_DECLS([getgrgid],,, [#include <grp.h>])
AC_CHECK_DECLS([getpwuid],,, [#include <pwd.h>])
AC_CHECK_DECLS([time],,, [#include <time.h>])
