@@ -31,12 +31,14 @@ export DOCKERFILE

 # `docs/sources/contributing/devenvironment.md ` and `project/PACKAGERS.md` have some limited documentation of some of these

 DOCKER_ENVS := \

 	-e BUILDFLAGS \

+	-e DOCKER_BUILD_GOGC \

 	-e DOCKER_BUILD_PKGS \

 	-e DOCKER_CLIENTONLY \

 	-e DOCKER_DEBUG \

 	-e DOCKER_EXPERIMENTAL \

 	-e DOCKERFILE \

 	-e DOCKER_GRAPHDRIVER \

+	-e DOCKER_INCREMENTAL_BINARY \

 	-e DOCKER_REMAP_ROOT \

 	-e DOCKER_STORAGE_OPTS \

 	-e DOCKER_USERLANDPROXY \

@@ -8,6 +8,8 @@ BINARY_FULLNAME="$BINARY_NAME$BINARY_EXTENSION"

 source "${MAKEDIR}/.go-autogen"

 (

+export GOGC=${DOCKER_BUILD_GOGC:-1000}

+

 if [ "$(go env GOOS)/$(go env GOARCH)" != "$(go env GOHOSTOS)/$(go env GOHOSTARCH)" ]; then

 	# must be cross-compiling!

 	case "$(go env GOOS)/$(go env GOARCH)" in