Makefile: removed configure and made library builds better

Makefile

@@ -15,9 +15,6 @@ PREFIX=/usr/local
 CC=cc
 RUSTC=rustc
 
-# to build, first run ./configure
-include cc.mk rustc.mk
-
 .PHONY: all
 all: dj false fop intcmp scrut str strcmp true
 
@@ -46,7 +43,7 @@ test: build
 	tests/posix-compat.sh
 	$(RUSTC) --test src/getopt-rs/lib.rs -o build/test/getopt
 
-sysexits: build
+build/o/libsysexits.rlib: build
 	# bandage solution until bindgen(1) gets stdin support
 	printf '#define EXIT_FAILURE 1\n' | cat - include/sysexits.h \
 		> build/include/sysexits.h 
@@ -56,7 +53,7 @@ sysexits: build
 			| sed 's/ /\n/g' | grep sysexits.h)" \
 		| $(RUSTC) $(RUSTCFLAGS) --crate-type lib -o build/o/libsysexits.rlib -
 
-libgetopt: src/getopt-rs/lib.rs
+build/o/libgetopt.rlib: src/getopt-rs/lib.rs
 	$(RUSTC) $(RUSTCFLAGS) --crate-type=lib --crate-name=getopt \
 		-o build/o/libgetopt.rlib src/getopt-rs/lib.rs
 
@@ -72,8 +69,9 @@ build/bin/false: src/false.c build
 
 .PHONY: fop
 fop: build/bin/fop
-build/bin/fop: src/fop.rs build libgetopt sysexits
+build/bin/fop: src/fop.rs build build/o/libgetopt.rlib build/o/libsysexits.rlib
 	$(RUSTC) $(RUSTFLAGS) --extern getopt=build/o/libgetopt.rlib \
+		--extern sysexits=build/o/libsysexits.rlib \
 		-o $@ src/fop.rs
 
 .PHONY: intcmp