build: Versioning now populated through ldflags

Makefile

@@ -1,3 +1,5 @@
+LDFLAGS = $(shell go run buildscripts/gen-ldflags.go)
+
 all: install
 
 checkdeps:
@@ -7,6 +9,7 @@ checkdeps:
 checkgopath:
 	@echo "Checking if project is at ${GOPATH}"
 	@for miniopath in $(echo ${GOPATH} | sed 's/:/\n/g'); do if [ ! -d ${miniopath}/src/github.com/minio/minio ]; then echo "Project not found in ${miniopath}, please follow instructions provided at https://github.com/minio/minio/blob/master/CONTRIBUTING.md#setup-your-minio-github-repository" && exit 1; fi done
+	@echo "Setting LDFLAGS: ${LDFLAGS}"
 
 getdeps: checkdeps checkgopath
 	@go get -u github.com/golang/lint/golint && echo "Installed golint:"
@@ -38,7 +41,7 @@ cyclo:
 	@GO15VENDOREXPERIMENT=1 gocyclo -over 65 *.go
 	@GO15VENDOREXPERIMENT=1 gocyclo -over 65 pkg
 
-build: constants getdeps verifiers
+build: getdeps verifiers
 	@echo "Installing minio:"
 
 deadcode:
@@ -50,11 +53,7 @@ test: build
 	@GO15VENDOREXPERIMENT=1 go test $(GOFLAGS) github.com/minio/minio/pkg...
 
 gomake-all: build
-	@GO15VENDOREXPERIMENT=1 go install github.com/minio/minio
-
-constants:
-	@echo "Generating new build-constants.go"
-	@GO15VENDOREXPERIMENT=1 go run buildscripts/gen-constants.go
+	@GO15VENDOREXPERIMENT=1 go build -ldflags $(LDFLAGS) -o $(GOPATH)/bin/minio
 
 pkg-add:
 	@GO15VENDOREXPERIMENT=1 govendor add $(PKG)
@@ -69,7 +68,6 @@ install: gomake-all
 
 clean:
 	@echo "Cleaning up all the generated files:"
-	@rm -fv build-constants.go
 	@rm -fv cover.out
 	@rm -fv minio
 	@rm -fv minio.test