Merge pull request #16976 from gottesmm/pr-c0beaa9a1e7fa7e23c1a1ad9262c97c7e8e34810

Teach build-toolchain how to pass distcc down to build-script.

Author: shahmishal

utils/build-toolchain

@@ -26,12 +26,16 @@ function usage() {
   echo "-t --test"
   echo "Run tests."
   echo ""
+  echo "--distcc"
+  echo "Build with distcc to speed up the toolchain build"
+  echo ""
 }
 
 cd "$(dirname $0)/.." || exit
 SRC_DIR=$PWD
 
 # Set defaults
+DISTCC_FLAG=
 DRY_RUN=
 BUNDLE_PREFIX=
 case $(uname -s) in
@@ -60,6 +64,9 @@ while [ $# -ne 0 ]; do
       else
         SWIFT_PACKAGE=buildbot_osx_package
       fi
+  ;;
+    --distcc)
+      DISTCC_FLAG="--distcc"
   ;;
   -h|--help)
     usage
@@ -104,8 +111,9 @@ SWIFT_INSTALL_SYMROOT="${SRC_DIR}/swift-nightly-symroot"
 SWIFT_TOOLCHAIN_DIR="/Library/Developer/Toolchains/${TOOLCHAIN_NAME}.xctoolchain"
 SYMBOLS_PACKAGE="${SRC_DIR}/${SYM_ARCHIVE}"
 DRY_RUN="${DRY_RUN}"
+DISTCC_FLAG="${DISTCC_FLAG}"
 
-./utils/build-script ${DRY_RUN} --preset="${SWIFT_PACKAGE}" \
+./utils/build-script ${DRY_RUN} ${DISTCC_FLAG} --preset="${SWIFT_PACKAGE}" \
         install_destdir="${SWIFT_INSTALL_DIR}" \
         installable_package="${SWIFT_INSTALLABLE_PACKAGE}" \
         install_toolchain_dir="${SWIFT_TOOLCHAIN_DIR}" \