+ dnl Test for POSIX-draft-like API (Linux, FreeBSD, MacOS X, IRIX, Tru64).
+ dnl -lacl is needed on Linux, -lpacl is needed on OSF/1.
+ if test $use_acl = 0; then
+ AC_SEARCH_LIBS([acl_get_file], [acl pacl],
+ [if test "$ac_cv_search_acl_get_file" != "none required"; then
+ LIB_ACL=$ac_cv_search_acl_get_file
+ fi
+ AC_CHECK_FUNCS(
+ [acl_get_file acl_get_fd acl_set_file acl_set_fd \
+ acl_free acl_from_mode acl_from_text \
+ acl_delete_def_file acl_extended_file \
+ acl_delete_fd_np acl_delete_file_np \
+ acl_copy_ext_native acl_create_entry_np \
+ acl_to_short_text acl_free_text])
+ # If the acl_get_file bug is detected, don't enable the ACL support.
+ gl_ACL_GET_FILE([use_acl=1], [])
+ if test $use_acl = 1; then
+ dnl On Linux, additional API is declared in <acl/libacl.h>.
+ AC_CHECK_HEADERS([acl/libacl.h])
+ AC_REPLACE_FUNCS([acl_entries])
+ AC_CACHE_CHECK([for ACL_FIRST_ENTRY],
+ [gl_cv_acl_ACL_FIRST_ENTRY],
+ [AC_COMPILE_IFELSE(
+[[#include <sys/types.h>
+#include <sys/acl.h>
+int type = ACL_FIRST_ENTRY;]],
+ [gl_cv_acl_ACL_FIRST_ENTRY=yes],
+ [gl_cv_acl_ACL_FIRST_ENTRY=no])])
+ if test $gl_cv_acl_ACL_FIRST_ENTRY = yes; then
+ AC_DEFINE([HAVE_ACL_FIRST_ENTRY], 1,
+ [Define to 1 if the constant ACL_FIRST_ENTRY exists.])
+ fi
+ dnl On MacOS X, other types of ACLs are supported.
+ AC_CACHE_CHECK([for ACL_TYPE_EXTENDED],
+ [gl_cv_acl_ACL_TYPE_EXTENDED],
+ [AC_COMPILE_IFELSE(
+[[#include <sys/types.h>
+#include <sys/acl.h>
+int type = ACL_TYPE_EXTENDED;]],
+ [gl_cv_acl_ACL_TYPE_EXTENDED=yes],
+ [gl_cv_acl_ACL_TYPE_EXTENDED=no])])
+ if test $gl_cv_acl_ACL_TYPE_EXTENDED = yes; then
+ AC_DEFINE([HAVE_ACL_TYPE_EXTENDED], 1,
+ [Define to 1 if the ACL type ACL_TYPE_EXTENDED exists.])
+ fi
+ else
+ LIB_ACL=
+ fi
+ ])
+ fi