path: root/Makefile
diff options
authorKyle Evans <kevans@FreeBSD.org>2020-10-16 15:16:23 +0000
committerKyle Evans <kevans@FreeBSD.org>2020-10-16 15:16:23 +0000
commit5f2aaba4532c713f74279f0e83208c97af3a3e69 (patch)
treede66c71b5c9fdfb77b4b74e2ba7b3695901a48d3 /Makefile
parentd00afbaea9693439abb91f83b533aa4a025a9671 (diff)
Makefile: add a small blurb about building with gcc xtoolchain
The key details are to install the appropriate flavor of devel/freebsd-gcc9 and pass CROSS_TOOLCHAIN while building. Suggested by: kib
Notes: svn path=/head/; revision=366766
Diffstat (limited to 'Makefile')
1 files changed, 9 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index 9847f91d7c19..9b55fe6f01f3 100644
--- a/Makefile
+++ b/Makefile
@@ -89,6 +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`.
# See src/UPDATING `COMMON ITEMS' for more complete information.
# If TARGET=machine (e.g. powerpc, arm64, ...) is specified you can