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-rw-r--r--archivers/libarchive/files/libarchive/filter_fork.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/archivers/libarchive/files/libarchive/filter_fork.h b/archivers/libarchive/files/libarchive/filter_fork.h
index 685efda09fc..453d032d1c8 100644
--- a/archivers/libarchive/files/libarchive/filter_fork.h
+++ b/archivers/libarchive/files/libarchive/filter_fork.h
@@ -22,9 +22,13 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
- * $FreeBSD: src/lib/libarchive/filter_fork.h,v 1.1 2007/05/29 01:00:20 kientzle Exp $
+ * $FreeBSD: head/lib/libarchive/filter_fork.h 201087 2009-12-28 02:18:26Z kientzle $
*/
+#ifndef __LIBARCHIVE_BUILD
+#error This header is only to be used internally to libarchive.
+#endif
+
#ifndef FILTER_FORK_H
#define FILTER_FORK_H