PREFIX ?= /usr DESTDIR ?= BINDIR ?= $(PREFIX)/bin export GOPATH ?= $(CURDIR)/.gopath export GO111MODULE := on all: generate-version-and-build ifeq ($(shell go env GOOS)|$(wildcard .git),linux|) $(error Do not build this for Linux. Instead use the Linux kernel module. See wireguard.com/install/ for more info.) else ireallywantobuildon_linux.go: @printf "WARNING: This software is meant for use on non-Linux\nsystems. For Linux, please use the kernel module\ninstead. See wireguard.com/install/ for more info.\n\n" >&2 @printf 'package main\nconst UseTheKernelModuleInstead = 0xdeadbabe\n' > "$@" clean-ireallywantobuildon_linux.go: @rm -f ireallywantobuildon_linux.go .PHONY: clean-ireallywantobuildon_linux.go clean: clean-ireallywantobuildon_linux.go wireguard-go: ireallywantobuildon_linux.go endif MAKEFLAGS += --no-print-directory generate-version-and-build: @export GIT_CEILING_DIRECTORIES="$(realpath $(CURDIR)/..)" && \ tag="$$(git describe --dirty 2>/dev/null)" && \ ver="$$(printf 'package device\nconst WireGuardGoVersion = "%s"\n' "$$tag")" && \ [ "$$(cat device/version.go 2>/dev/null)" != "$$ver" ] && \ echo "$$ver" > device/version.go && \ git update-index --assume-unchanged device/version.go || true @$(MAKE) wireguard-go wireguard-go: $(wildcard *.go) $(wildcard */*.go) go build -v -o "$@" install: wireguard-go @install -v -d "$(DESTDIR)$(BINDIR)" && install -v -m 0755 "$<" "$(DESTDIR)$(BINDIR)/wireguard-go" clean: rm -f wireguard-go .PHONY: all clean install generate-version-and-build