98 lines
3.4 KiB
Plaintext
98 lines
3.4 KiB
Plaintext
# selinux-selinux-h.m4
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# serial 10 -*- Autoconf -*-
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dnl Copyright (C) 2006-2007, 2009-2024 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl This file is offered as-is, without any warranty.
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# From Jim Meyering
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# Provide <selinux/selinux.h>, if necessary.
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# If it is already present, provide wrapper functions to guard against
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# misbehavior from getfilecon, lgetfilecon, and fgetfilecon.
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AC_DEFUN([gl_HEADERS_SELINUX_SELINUX_H],
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[
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AC_REQUIRE([gl_CHECK_HEADER_SELINUX_SELINUX_H])
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if test "$with_selinux" != no; then
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if test "$ac_cv_header_selinux_selinux_h" = yes; then
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# We do have <selinux/selinux.h>, so do compile getfilecon.c
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# and arrange to use its wrappers.
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gl_CHECK_NEXT_HEADERS([selinux/selinux.h])
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AC_DEFINE([getfilecon], [rpl_getfilecon],
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[Always use our getfilecon wrapper.])
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AC_DEFINE([getfilecon_raw], [rpl_getfilecon_raw],
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[Always use our getfilecon_raw wrapper.])
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AC_DEFINE([lgetfilecon], [rpl_lgetfilecon],
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[Always use our lgetfilecon wrapper.])
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AC_DEFINE([lgetfilecon_raw], [rpl_lgetfilecon_raw],
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[Always use our lgetfilecon_raw wrapper.])
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AC_DEFINE([fgetfilecon], [rpl_fgetfilecon],
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[Always use our fgetfilecon wrapper.])
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AC_DEFINE([fgetfilecon_raw], [rpl_fgetfilecon_raw],
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[Always use our fgetfilecon_raw wrapper.])
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fi
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fi
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])
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# Check for <selinux/selinux.h>, if necessary.
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AC_DEFUN([gl_CHECK_HEADER_SELINUX_SELINUX_H],
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[
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AC_REQUIRE([gl_LIBSELINUX])
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if test "$with_selinux" != no; then
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AC_CHECK_HEADERS_ONCE([selinux/selinux.h])
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if test $ac_cv_header_selinux_selinux_h = yes; then
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USE_SELINUX_SELINUX_H=1
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else
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USE_SELINUX_SELINUX_H=0
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fi
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case "$ac_cv_search_setfilecon:$ac_cv_header_selinux_selinux_h" in
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no:*) # already warned
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;;
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*:no)
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AC_MSG_WARN([libselinux was found but selinux/selinux.h is missing.])
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AC_MSG_WARN([AC_PACKAGE_NAME will be compiled without SELinux support.])
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;;
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esac
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else
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# Do as if <selinux/selinux.h> does not exist, even if
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# AC_CHECK_HEADERS_ONCE has already determined that it exists.
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USE_SELINUX_SELINUX_H=0
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fi
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AC_SUBST([USE_SELINUX_SELINUX_H])
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AC_DEFINE_UNQUOTED([USE_SELINUX_SELINUX_H], [$USE_SELINUX_SELINUX_H],
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[Define to 1 if <selinux/selinux.h> should be used, to 0 otherwise.])
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])
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AC_DEFUN([gl_LIBSELINUX],
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[
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AC_REQUIRE([AC_CANONICAL_HOST])
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AC_REQUIRE([AC_CANONICAL_BUILD])
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AC_ARG_WITH([selinux],
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AS_HELP_STRING([[--without-selinux]], [do not use SELinux, even on systems with SELinux]),
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[], [with_selinux=maybe])
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LIB_SELINUX=
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if test "$with_selinux" != no; then
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gl_saved_LIBS=$LIBS
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AC_SEARCH_LIBS([setfilecon], [selinux],
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[test "$ac_cv_search_setfilecon" = "none required" ||
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LIB_SELINUX=$ac_cv_search_setfilecon])
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LIBS=$gl_saved_LIBS
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fi
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AC_SUBST([LIB_SELINUX])
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# Warn if SELinux is found but libselinux is absent;
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if test "$ac_cv_search_setfilecon" = no; then
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if test "$host" = "$build" && test -d /selinux; then
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AC_MSG_WARN([This system supports SELinux but libselinux is missing.])
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AC_MSG_WARN([AC_PACKAGE_NAME will be compiled without SELinux support.])
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fi
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with_selinux=no
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fi
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])
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