#set variables GIT_COMMIT := $(shell git rev-list -1 HEAD) ifeq ($(PREFIX),) # PREFIX is environment variable, but if it is not set, then set default value PREFIX := /usr/local endif all: client client2 client: $(wildcard client/*.go) go build -ldflags "-X main.GitCommit=$(GIT_COMMIT)" ./client client2: $(wildcard client2/*.go) go build -ldflags "-X main.GitCommit=$(GIT_COMMIT)" ./client2 clean: rm -f client client2