@@ -1,30 +1,37 @@
+B = build
+E = ext
+
 pq-inc != pkg-config --cflags libpq
 pq-lib != pkg-config --libs libpq
 
-cc-flags = -std=c2x $(pq-inc)
-ld-flags = $(pq-lib)
+wg-inc = -I$E/wglib
 
-B = build
+dbg-flags = $(if $(debug),-g -D_cfg_debug,)
+cc-flags = -std=c2x $(pq-inc) $(wg-inc) $(dbg-flags)
+ld-flags = $(pq-lib) $(dbg-flags)
+
 
 # link rule 
 .PHONY: wgsync
-$B/wgsync: $B/wgsync.o $B/wireguard.o | $B/
+$B/wgsync: $B/wgsync.o $B/pqp.o $B/def.o $B/wireguard.o | $B/
 	$(CC) $(ld-flags) $^ -o $@
 
 # build rules 
 $B/%.o: src/%.c | $B/
 	$(CC) $(cc-flags) -c $< -o $@
 
-$B/wireguard.o: ext/wglib/wireguard.c ext/wglib/wireguard.h | $B/
+$B/wireguard.o: $E/wglib/wireguard.c $E/wglib/wireguard.h | $B/
 	$(CC) -std=c11 -c $< -o $@
 
 # dep listings
-$B/wgsync.o: ext/wglib/wireguard.h
+$B/wgsync.o: $E/wglib/wireguard.h src/pqp.h src/def.h
+$B/pqp.o: src/pqp.h src/def.h 
+$B/def.o: src/def.h
 
 # fetch rules
 %/:
 	mkdir -p $@
 
 wg-lib-uri = https://git.zx2c4.com/wireguard-tools/plain/contrib/embeddable-wg-library
-ext/wglib/%: | ext/wglib/
+$E/wglib/%: | $E/wglib/
 	curl $(wg-lib-uri)/$* >$@