[src/trunk]: src/share/mk Document that EXTERNAL_TOOLCHAIN shoul...

[joerg <joerg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/bbacd0ba43e0
branches:  trunk
changeset: 318936:bbacd0ba43e0
user:      joerg <joerg%NetBSD.org@localhost>
date:      Wed May 09 22:24:01 2018 +0000
description:
Document that EXTERNAL_TOOLCHAIN should be used together with HAVE_GCC
or HAVE_LLVM.

diffstat:

 share/mk/bsd.README |  5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diffs (19 lines):

diff -r 8052aecfcdb2 -r bbacd0ba43e0 share/mk/bsd.README
--- a/share/mk/bsd.README       Wed May 09 21:26:59 2018 +0000
+++ b/share/mk/bsd.README       Wed May 09 22:24:01 2018 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: bsd.README,v 1.370 2018/04/01 04:35:02 ryo Exp $
+#      $NetBSD: bsd.README,v 1.371 2018/05/09 22:24:01 joerg Exp $
 #      @(#)bsd.README  8.2 (Berkeley) 4/2/94
 
 This is the README file for the make "include" files for the NetBSD
@@ -790,6 +790,9 @@
                compiler may not be able to build the library components of
                the in-tree compiler.
 
+               This variable should be used in conjunction with an appropiate
+               HAVE_GCC or HAVE_LLVM setting to control the compiler flags.
+
                NOTE: This variable is not yet used in as many places as
                it should be.  Expect the exact semantics of this variable
                to change in the short term as parts of the cross-compile