Index: makefile
--- makefile.orig
+++ makefile
@@ -18,7 +18,7 @@ export GO_SPACE
 
 checkstyle::
 #   Run checkstyle script
-	$(GO_SPACE)/Tools/src/checkstyle.sh
+#	$(GO_SPACE)/Tools/src/checkstyle.sh
 
 analyze-install::
 	$(GO_SPACE)/Tools/src/static_analysis.sh $(shell echo ${flags} | tr ",\[\]" " \"") -I
@@ -34,7 +34,7 @@ coverage:: build-linux
 	  github.com/aws/amazon-ssm-agent/agent/... \
 	  github.com/aws/amazon-ssm-agent/core/...
 
-build:: build-linux build-freebsd build-windows build-linux-386 build-windows-386 build-arm build-arm64 build-darwin-amd64 build-darwin-arm64
+build:: build-linux build-freebsd build-openbsd build-windows build-linux-386 build-windows-386 build-arm build-arm64 build-darwin-amd64 build-darwin-arm64
 
 prepack:: cpy-plugins copy-win-dep prepack-linux prepack-linux-arm64 prepack-linux-386 prepack-windows prepack-windows-386
 
@@ -52,6 +52,8 @@ finalize:: build-tests copy-package-dep
 dev-build-linux: clean quick-integtest checkstyle pre-release build-linux
 .PHONY: dev-build-freebsd
 dev-build-freebsd: clean quick-integtest checkstyle pre-release build-freebsd
+.PHONY: dev-build-openbsd
+dev-build-openbsd: clean quick-integtest checkstyle pre-release build-openbsd
 .PHONY: dev-build-windows
 dev-build-windows: clean quick-integtest checkstyle pre-release build-windows
 .PHONY: dev-build-linux-386
@@ -167,6 +169,12 @@ build-freebsd: GOARCH=amd64
 build-freebsd: GOOS=freebsd
 build-freebsd: GO_BUILD=$(GO_BUILD_NOPIE)
 build-freebsd: build-any-amd64-freebsd
+
+.PHONY: build-openbsd
+build-openbsd: GOARCH=amd64
+build-openbsd: GOOS=openbsd
+build-openbsd: GO_BUILD=$(GO_BUILD_NOPIE)
+build-openbsd: build-any-amd64-openbsd
 
 .PHONY: build-darwin-amd64
 build-darwin-amd64: GOARCH=amd64