Add libRack to Rack SDK on Linux and Mac.

Makefile

@@ -145,7 +145,7 @@ endif
 DIST_RES := res cacert.pem Core.json template.vcv LICENSE-GPLv3.txt
 DIST_NAME := Rack-"$(VERSION)"-$(ARCH_OS_NAME)
 DIST_SDK_DIR := Rack-SDK
-DIST_SDK := Rack-SDK-$(VERSION).zip
+DIST_SDK := Rack-SDK-"$(VERSION)"-$(ARCH_OS_NAME).zip
 ifdef ARCH_MAC
 	DIST_BUNDLE := VCV Rack $(VERSION_MAJOR).app
 else
@@ -229,6 +229,8 @@ endif
 	cp -R dep/include dist/"$(DIST_SDK_DIR)"/dep/
 ifdef ARCH_WIN
 	cp libRack.dll.a dist/"$(DIST_SDK_DIR)"/
+else
+	cp $(TARGET) dist/"$(DIST_SDK_DIR)"/
 endif
 	cd dist && zip -q -9 -r "$(DIST_SDK)" "$(DIST_SDK_DIR)"