Add support for static linking (#3733)

Makefile

@@ -32,7 +32,7 @@ GIT_COMMIT	?= `git rev-parse --short HEAD`
 VERSION		?= `git describe --always`
 GO_VERSION	?= `go version | awk '{print $$3}'`
 BUILD_DATE	= `date +%FT%T%z`
-BUILD_FLAGS	= "-X main.gitCommit=$(GIT_COMMIT) -X main.version=$(VERSION) -X main.goVersion=$(GO_VERSION) -X main.buildDate=$(BUILD_DATE)"
+BUILD_FLAGS	= "`[[ -z "$(STATIC)" ]] && echo "" || echo "-extldflags=-static"` -X main.gitCommit=$(GIT_COMMIT) -X main.version=$(VERSION) -X main.goVersion=$(GO_VERSION) -X main.buildDate=$(BUILD_DATE)"
 
 .PHONY: revad
 revad:

changelog/unreleased/enhancement-static.md

@@ -0,0 +1,6 @@
+Enhancement: Add support for static linking
+
+We've added support for compiling reva with static linking enabled.
+It's possible to do so with the `STATIC` flag: `make revad STATIC=true`
+
+https://github.com/cs3org/reva/pull/3733