2 # serial 8 -*- Autoconf -*-
3 dnl Copyright (C) 2006-2007, 2009-2024 Free Software Foundation, Inc.
4 dnl This file is free software; the Free Software Foundation
5 dnl gives unlimited permission to copy and/or distribute it,
6 dnl with or without modifications, as long as this notice is preserved.
9 # Provide <selinux/selinux.h>, if necessary.
10 # If it is already present, provide wrapper functions to guard against
11 # misbehavior from getfilecon, lgetfilecon, and fgetfilecon.
13 AC_DEFUN([gl_HEADERS_SELINUX_SELINUX_H],
15 AC_REQUIRE([gl_LIBSELINUX])
16 if test "$with_selinux" != no; then
17 AC_CHECK_HEADERS([selinux/selinux.h])
19 if test $ac_cv_header_selinux_selinux_h = yes; then
20 HAVE_SELINUX_SELINUX_H=1
22 HAVE_SELINUX_SELINUX_H=0
25 if test "$ac_cv_header_selinux_selinux_h" = yes; then
26 # We do have <selinux/selinux.h>, so do compile getfilecon.c
27 # and arrange to use its wrappers.
28 gl_CHECK_NEXT_HEADERS([selinux/selinux.h])
29 AC_DEFINE([getfilecon], [rpl_getfilecon],
30 [Always use our getfilecon wrapper.])
31 AC_DEFINE([getfilecon_raw], [rpl_getfilecon_raw],
32 [Always use our getfilecon_raw wrapper.])
33 AC_DEFINE([lgetfilecon], [rpl_lgetfilecon],
34 [Always use our lgetfilecon wrapper.])
35 AC_DEFINE([lgetfilecon_raw], [rpl_lgetfilecon_raw],
36 [Always use our lgetfilecon_raw wrapper.])
37 AC_DEFINE([fgetfilecon], [rpl_fgetfilecon],
38 [Always use our fgetfilecon wrapper.])
39 AC_DEFINE([fgetfilecon_raw], [rpl_fgetfilecon_raw],
40 [Always use our fgetfilecon_raw wrapper.])
43 case "$ac_cv_search_setfilecon:$ac_cv_header_selinux_selinux_h" in
44 no:*) # already warned
47 AC_MSG_WARN([libselinux was found but selinux/selinux.h is missing.])
48 AC_MSG_WARN([AC_PACKAGE_NAME will be compiled without SELinux support.])
51 # Do as if <selinux/selinux.h> does not exist, even if
52 # AC_CHECK_HEADERS_ONCE has already determined that it exists.
53 HAVE_SELINUX_SELINUX_H=0
55 AC_SUBST([HAVE_SELINUX_SELINUX_H])
58 AC_DEFUN([gl_LIBSELINUX],
60 AC_REQUIRE([AC_CANONICAL_HOST])
61 AC_REQUIRE([AC_CANONICAL_BUILD])
63 AC_ARG_WITH([selinux],
64 AS_HELP_STRING([[--without-selinux]], [do not use SELinux, even on systems with SELinux]),
65 [], [with_selinux=maybe])
68 if test "$with_selinux" != no; then
70 AC_SEARCH_LIBS([setfilecon], [selinux],
71 [test "$ac_cv_search_setfilecon" = "none required" ||
72 LIB_SELINUX=$ac_cv_search_setfilecon])
75 AC_SUBST([LIB_SELINUX])
77 # Warn if SELinux is found but libselinux is absent;
78 if test "$ac_cv_search_setfilecon" = no; then
79 if test "$host" = "$build" && test -d /selinux; then
80 AC_MSG_WARN([This system supports SELinux but libselinux is missing.])
81 AC_MSG_WARN([AC_PACKAGE_NAME will be compiled without SELinux support.])