makefile fixes

Makefile

@@ -1,24 +1,29 @@
 all: quox
 
+# these two are real files, but always ask nix if they need remaking
+.PHONY: quox
 quox:
-	nix build '.#quox-exe'
-	ln -sfL $$(realpath result/bin/quox) quox
+	nix build --no-link '.#quox'
+	ln -sfL $$(nix path-info '.#quox')/bin/quox quox
 
+.PHONY: quox-tests
 quox-tests:
-	nix build '.#quox-tests'
-	ln -sfL $$(realpath result/bin/quox-tests) quox-tests
+	nix build --no-link '.#quox-tests'
+	ln -sfL $$(nix path-info '.#quox-tests')/bin/quox-tests quox-tests
+
 
 .PHONY: lib
 lib:
-	nix build '.#quox'
+	nix build '.#quox-lib'
 
 .PHONY: test
 test:
 	nix run -- '.#quox-tests' -V 14
 
 .PHONY: prove
-prove: quox-tests
-	prove ./quox-tests
+prove:
+	nix build '.#quox-tests'
+	prove $$(nix path-info '.#quox-tests')/bin/quox-tests
 
 .PHONY: clean
 clean: