Index: Makefile
===================================================================
--- Makefile
+++ Makefile
@@ -89,14 +89,15 @@
 # 10.  `reboot'
 # 11.  `make delete-old-libs' (in case no 3rd party program uses them anymore)
 #
-# For individuals wanting to build from source with GCC from ports, first build
-# or install an appropriate flavor of devel/freebsd-gcc9.  The packages produced
-# by this port are named "${TARGET_ARCH}-gcc9" -- note that not all
-# architectures supported by FreeBSD have an external gcc toolchain available.
-#
-# Once the appropriate freebsd-gcc package is installed, simply pass
-# CROSS_TOOLCHAIN=${TARGET_ARCH}-gcc9 while building with the above steps,
-# e.g., `make buildworld CROSS_TOOLCHAIN=amd64-gcc9`.
+# For individuals wanting to build from source with GCC from ports, first
+# install the appropriate gcc xtoolchain package:
+#   `pkg install ${TARGET_ARCH}-gccX`
+#
+# Once you have installed the necessary xtoolchain, simply pass
+# CROSS_TOOLCHAIN=${TARGET_ARCH}-gccX while building with the above steps,
+# e.g., `make buildworld CROSS_TOOLCHAIN=amd64-gcc6`.
+#
+# The ${TARGET_ARCH}-gccX packages are provided by devel/freebsd-gccX.
 #
 # See src/UPDATING `COMMON ITEMS' for more complete information.
 #