RF: Better way of adding -install_name option - earlier attempt was being

evaluated against $@="", so was matching all targets

config/buildSettings.mk

@@ -112,9 +112,7 @@ ifeq ($(SYSTYPE), Darwin)
   # that we give shared libs a suffix of
   # .so (not .dylib) on both linux and
   # macOS.
-  ifeq ($(patsubst %.so,,$@),)
-	LDFLAGS += -Wl,-install_name,@rpath/$@
-  endif
+  %.so : LDFLAGS += -Wl,-install_name,@rpath/$@
 endif
 
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