Update mgpost and add to new build system

utils/mgpost/Makefile

@@ -1,13 +1,19 @@
 CC=cc
 CFLAGS=-I/usr/local/include
 DEPS = mgpost.c
-JAMLIB = ../../jamlib/jamlib.a
+JAMLIB = ../../deps/jamlib/jamlib.a
 OBJ = mgpost.o ../../inih/ini.o
+
+all: mgpost
+
 %.o: %.c $(DEPS)
 	$(CC) -c -o $@ $< $(CFLAGS)
 
-mgpost: $(OBJ) 
-	$(CC) -o mgpost -o $@ $^ $(CFLAGS) -L/usr/local/lib $(JAMLIB)
+$(JAMLIB):
+	cd ../../deps/jamlib && make -f Makefile.linux
+
+mgpost: $(OBJ) $(JAMLIB)
+	$(CC) -o mgpost -o $@ $^ $(CFLAGS) -L/usr/local/lib 
 	
 .PHONY: clean