gbuild: macosx.mk: Bundles have no install_name

solenv/gbuild/platform/macosx.mk

@@ -309,10 +309,12 @@ endef
 gb_Library__set_soversion_script_platform = $(gb_Library__set_soversion_script)
 
 # bundle is a special kind of library that exists only on Darwin/OSX
-# set the TARGETTYPE to Bundle
+# set the TARGETTYPE to Bundle, and clear install_name(RPATH)
 define gb_Library_Bundle
 $(call gb_Library_Library,$(1))
 $(call gb_LinkTarget_set_targettype,$(call gb_Library_get_linktargetname,$(1)),Bundle)
+$(call gb_LinkTarget_get_target,$(call gb_Library_get_linktargetname,$(1))) : \
+	RPATH :=
 endef
 
 # StaticLibrary class