diff --git a/en_US.ISO8859-1/books/porters-handbook/book.sgml b/en_US.ISO8859-1/books/porters-handbook/book.sgml
index 1359f306e3..e1ca52ceac 100644
--- a/en_US.ISO8859-1/books/porters-handbook/book.sgml
+++ b/en_US.ISO8859-1/books/porters-handbook/book.sgml
@@ -3035,6 +3035,23 @@ PORTVERSION= 1.0
autoconf to be run before
configure.
+
+ If your package uses GNU configure, and
+ the resulting executable file has a strange
name
+ like
+ i386-portbld-freebsd4.7-appname,
+ you will need to additionally override the
+ CONFIGURE_TARGET variable to specify the
+ target in the way required by scripts generated by recent
+ versions of autoconf. Add the following line
+ immediately after the GNU_CONFIGURE=yes line
+ in your Makefile:
+
+
+ CONFIGURE_TARGET=--build=${MACHINE_ARCH}-portbld-freebsd${OSREL}
+
+
+
If your package is an X application that creates
Makefiles from Imakefiles
using imake, then set