Simplify flags

Makefile

@@ -4,19 +4,14 @@ SRC=litejq.c
 OUT=litejq
 PKG_CONFIG ?= pkg-config
 
-ifeq (no,$(shell $(PKG_CONFIG) libjq || echo no))
-$(warning "libjq not registed with pkg-config, build might fail. If it does, try setting JQ_PREFIX manually and run with `JQ_PREFIX=/path/to/dir make all`")
-LIBJQ_LIBS=-I$(JQ_PREFIX)/include -L$(JQ_PREFIX)/lib -ljq
-else
-LIBJQ_LIBS=$(shell $(PKG_CONFIG) --cflags --libs libjq)
-endif
+LIBJQ_FLAGS=$(shell $(PKG_CONFIG) --cflags --libs libjq)
 
-SQLITE3_LIBS=$(shell $(PKG_CONFIG) --cflags --libs sqlite3)
+SQLITE3_FLAGS=$(shell $(PKG_CONFIG) --cflags --libs sqlite3)
 
 all: $(OUT)
 
 $(OUT): $(SRC)
-	$(CC) $(CFLAGS) -o $(OUT) $(SRC) $(SQLITE3_LIBS) $(LIBJQ_LIBS)
+	$(CC) $(CFLAGS) -o $(OUT) $(SRC) $(SQLITE3_FLAGS) $(LIBJQ_FLAGS)
 
 .PHONY: run-test-%
 run-test-%: