make: fix buildmode=plugin and pkgdir problems

License: MIT
Signed-off-by: Jakub Sztandera <kubuxu@protonmail.ch>

plugin/plugins/Rules.mk

@@ -4,7 +4,7 @@ $(d)_plugins:=$(d)/git
 $(d)_plugins_so:=$(addsuffix .so,$($(d)_plugins))
 
 $($(d)_plugins_so): $$(DEPS_GO) ALWAYS
-	go build -buildmode=plugin -i $(go-flags-with-tags) -o "$@" "$(call go-pkg-name,$(basename $@))"
+	go build -buildmode=plugin -i -pkgdir "$$GOPATH/pkg/linux_amd64_dynlink" $(go-flags-with-tags) -o "$@" "$(call go-pkg-name,$(basename $@))"
 
 CLEAN += $($(d)_plugins_so)