- $(1).CONFIGURE.env.CXXFLAGS = CXXFLAGS="$$(call fn.ARGS,$(1).GCC,*archs)"
- $(1).CONFIGURE.env.CPPFLAGS = CPPFLAGS="$$(call fn.ARGS,$(1).GCC,*archs)"
+ $(1).CONFIGURE.env.CXXFLAGS = CXXFLAGS="$$(call fn.ARGS,$(1).GCC,*archs ?extra)"
+ $(1).CONFIGURE.env.CPPFLAGS = CPPFLAGS="$$(call fn.ARGS,$(1).GCC,*archs ?extra)"