diff --git a/CHANGES b/CHANGES
index 0565400ce4..dd31dc3b8d 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,5 @@
+3179.	[port]		kfreebsd: build issues. [RT #26273]
+
 3178.	[bug]		A race condition introduced by change #3163 could
 			cause an assertion failure on shutdown. [RT #26271]
 
diff --git a/configure b/configure
index f980cd16a1..06a66040fd 100755
--- a/configure
+++ b/configure
@@ -14,7 +14,7 @@
 # OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 # PERFORMANCE OF THIS SOFTWARE.
 #
-# $Id: configure,v 1.511 2011/10/14 05:42:52 marka Exp $
+# $Id: configure,v 1.512 2011/10/25 21:22:09 marka Exp $
 #
 # 	Portions of this code release fall under one or more of the
 # 	following Copyright notices.  Please see individual source
@@ -517,7 +517,7 @@
 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 # OF THE POSSIBILITY OF SUCH DAMAGE.
 #
-# From configure.in Revision: 1.529 .
+# From configure.in Revision: 1.530 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.67.
 #
@@ -20291,7 +20291,7 @@ case "$host" in
 	# as it breaks how the two halves (Basic and Advanced) of the IPv6
 	# Socket API were designed to be used but we have to live with it.
 	# Define _GNU_SOURCE to pull in the IPv6 Advanced Socket API.
-	*-linux*)
+	*-linux* | *-kfreebsd*-gnu)
 		STD_CDEFINES="$STD_CDEFINES -D_GNU_SOURCE"
 		CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
 		;;
diff --git a/configure.in b/configure.in
index 9a9f3e4858..362db4a049 100644
--- a/configure.in
+++ b/configure.in
@@ -18,7 +18,7 @@ AC_DIVERT_PUSH(1)dnl
 esyscmd([sed "s/^/# /" COPYRIGHT])dnl
 AC_DIVERT_POP()dnl
 
-AC_REVISION($Revision: 1.529 $)
+AC_REVISION($Revision: 1.530 $)
 
 AC_INIT(lib/dns/name.c)
 AC_PREREQ(2.59)
@@ -263,7 +263,7 @@ case "$host" in
 	# as it breaks how the two halves (Basic and Advanced) of the IPv6
 	# Socket API were designed to be used but we have to live with it.
 	# Define _GNU_SOURCE to pull in the IPv6 Advanced Socket API.
-	*-linux*)
+	*-linux* | *-kfreebsd*-gnu)
 		STD_CDEFINES="$STD_CDEFINES -D_GNU_SOURCE"
 		CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
 		;;