stripping (with flags -S) in  /nix/store/byj2yy9hx2zbl27ddsxzkr7wacj9vsi8-relation-stores/lib  /nix/store/byj2yy9hx2zbl27ddsxzkr7wacj9vsi8-relation-stores/bin 
strip: can't process non-object and non-archive file: /nix/store/byj2yy9hx2zbl27ddsxzkr7wacj9vsi8-relation-stores/lib/libRStoreAPI.la
strip: can't process non-object and non-archive file: /nix/store/byj2yy9hx2zbl27ddsxzkr7wacj9vsi8-relation-stores/lib/pkgconfig/relation-stores.pc