1 files changed, 7 insertions, 19 deletions
diff --git a/wireguard-go-bridge/Makefile b/wireguard-go-bridge/Makefile
index 6898949..d957e0c 100644
--- a/wireguard-go-bridge/Makefile
+++ b/wireguard-go-bridge/Makefile
@@ -48,39 +48,27 @@ $(GOROOT)/bin/go: .cache/$(GOBUILDTARBALL)
 	mkdir -p "$(GOROOT)"
 	tar -C "$(GOROOT)" --strip-components=1 -xzf - < .cache/$(GOBUILDTARBALL) || { rm -rf "$(GOROOT)"; exit 1; }
 	patch -p1 -f -N -r- -d "$(GOROOT)" < goruntime-boottime-over-monotonic.diff || { rm -rf "$(GOROOT)"; exit 1; }
+	touch $@
 
 $(shell test "$$(cat "$(BUILDDIR)/.gobuildversion" 2>/dev/null)" = "$(GOBUILDVERSION_CURRENT)" || rm -f "$(DESTDIR)/libwg-go.a")
 
-define copy-src-to-build
-$(subst $(1),$(BUILDDIR)/,$(2)): $(2)
-	@mkdir -vp "$$(dir $$@)"
-	@cp -vp "$$<" "$$@"
-$(BUILDDIR)/.prepared: $(subst $(1),$(BUILDDIR)/,$(2))
-endef
-
-$(foreach FILE,$(UPSTREAM_FILES),$(eval $(call copy-src-to-build,../wireguard-go/,$(FILE))))
-$(foreach FILE,$(DOWNSTREAM_FILES),$(eval $(call copy-src-to-build,src/,$(FILE))))
-
-$(BUILDDIR)/.prepared: $(GOROOT)/bin/go
-	cd "$(BUILDDIR)" || exit $$?; $(foreach ARCH,$(ARCHS),CGO_CFLAGS="$(CFLAGS_PREFIX) $(ARCH)" CGO_LDFLAGS="$(CFLAGS_PREFIX) $(ARCH)" GOARCH="$(GOARCH_$(ARCH))" go get -tags ios || { ret=$$?; chmod -fR +w "$(GOPATH)/pkg/mod"; rm -rf "$(GOPATH)/pkg/mod"; exit $$ret; };)
-	chmod -fR +w "$(GOPATH)/pkg/mod"
-	touch "$@"
-
 define libwg-go-a
-$(BUILDDIR)/libwg-go-$(1).a: $(BUILDDIR)/.prepared
-	cd "$(BUILDDIR)" || exit $$$$?; \
+$(BUILDDIR)/libwg-go-$(1).a: $(GOROOT)/bin/go
 	CGO_CFLAGS="$(CFLAGS_PREFIX) $(ARCH)" \
 	CGO_LDFLAGS="$(CFLAGS_PREFIX) $(ARCH)" \
 	GOARCH="$(GOARCH_$(1))" \
 	go build -tags ios -ldflags=-w -v -o "$(BUILDDIR)/libwg-go-$(1).a" -buildmode c-archive && go version > "$(BUILDDIR)/.gobuildversion"; \
+	chmod -fR +w "$(GOPATH)/pkg/mod"; \
 	ret=$$$$?; \
 	rm -f "$(BUILDDIR)/libwg-go-$(1).h"; \
 	exit $$$$ret
 endef
 $(foreach ARCH,$(ARCHS),$(eval $(call libwg-go-a,$(ARCH))))
 
-$(DESTDIR)/wireguard-go-version.h: ../wireguard-go/version.go
-	sed -n 's/.*WireGuardGoVersion = "\(.*\)"/#define WIREGUARD_GO_VERSION "\1"/p' "$^" > "$@"
+$(DESTDIR)/wireguard-go-version.h: go.mod $(GOROOT)/bin/go
+	go get -d -tags ios; chmod -fR +w "$(GOPATH)/pkg/mod"
+	wggo="$(GOPATH)/pkg/mod/$$(sed -n 's/.*\(golang\.zx2c4\.com\/wireguard\) \(.*\)$$/\1@\2/p' go.mod)"; \
+	sed -n 's/.*WireGuardGoVersion = "\(.*\)"/#define WIREGUARD_GO_VERSION "\1"/p' "$$wggo/device/version.go" > "$@"
 
 $(DESTDIR)/libwg-go.a: $(foreach ARCH,$(ARCHS),$(BUILDDIR)/libwg-go-$(ARCH).a)
 	@mkdir -vp "$(DESTDIR)"