cmd/dist, build: support building statically linked toolchain
Added a new $GO_DISTFLAGS to make.bash, and while we're here,
added mention $CXX in make.bash (CL 13704044).
Fixes #6448.
Update #3564
We can pass GO_DISTFLAGS=-s from misc/dist to make.bash so that
it will build a statically linked toolchain.
(Note: OS X doesn't have the concept of static linking, so don't
pass GO_DISTFLAGS=-s for OS X builds)
R=adg, rsc, iant
CC=golang-dev
https://golang.org/cl/13887043
diff --git a/src/make.bash b/src/make.bash
index 30388388..877d1e5 100755
--- a/src/make.bash
+++ b/src/make.bash
@@ -37,6 +37,11 @@
#
# CC: Command line to run to get at host C compiler.
# Default is "gcc". Also supported: "clang".
+# CXX: Command line to run to get at host C++ compiler, only recorded
+# for cgo use. Default is "g++". Also supported: "clang++".
+#
+# GO_DISTFLAGS: extra flags to provide to "dist bootstrap". Use "-s"
+# to build a statically linked toolchain.
set -e
if [ ! -f run.bash ]; then
@@ -140,7 +145,7 @@
if [ "$1" = "--no-clean" ]; then
buildall=""
fi
-./cmd/dist/dist bootstrap $buildall -v # builds go_bootstrap
+./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap
# Delay move of dist tool to now, because bootstrap may clear tool directory.
mv cmd/dist/dist "$GOTOOLDIR"/dist
"$GOTOOLDIR"/go_bootstrap clean -i std
