Makefile: re-wordsmith the blurb about xtoolchain ports

The new version only includes a specific version once, and uses the one
that's currently advised by tinderbox: -gcc6.

It also advises just installing the pkg, but mentions in a side-note at the
end where to find the source in the ports tree.

Reviewed by:	jrtc27
Suggested by:	jhb (use default from tinderbox)
Differential Revision:	https://reviews.freebsd.org/D26820
This commit is contained in:
kevans 2020-11-14 18:06:35 +00:00
parent 8c96a0be12
commit 47b35e8e11

View File

@ -89,14 +89,16 @@
# 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.
# For individuals wanting to build from source with GCC from ports, first
# install the appropriate GCC cross toolchain package:
# `pkg install ${TARGET_ARCH}-gccN`
#
# Once the appropriate freebsd-gcc package is installed, simply pass
# CROSS_TOOLCHAIN=${TARGET_ARCH}-gcc9 while building with the above steps,
# e.g., `make buildworld CROSS_TOOLCHAIN=amd64-gcc9`.
# Once you have installed the necessary cross toolchain, simply pass
# CROSS_TOOLCHAIN=${TARGET_ARCH}-gccN while building with the above steps,
# e.g., `make buildworld CROSS_TOOLCHAIN=amd64-gcc6`.
#
# The ${TARGET_ARCH}-gccN packages are provided as flavors of the
# devel/freebsd-gccN ports.
#
# See src/UPDATING `COMMON ITEMS' for more complete information.
#