-CFLAGS = -g -Ilibmicrohttpd-0.9.3/src/include -Iyajl/build/yajl-1.0.11/include
-LDFLAGS = -Llibmicrohttpd-0.9.3/src/daemon/.libs -Lyajl/build/yajl-1.0.11/lib
+CFLAGS ?= -g
+INCLUDES = -Ilibmicrohttpd-0.9.3/src/include -Iyajl/build/yajl-1.0.11/include
+LDFLAGS ?=
+LIBDIRS = -Llibmicrohttpd-0.9.3/src/daemon/.libs -Lyajl/build/yajl-1.0.11/lib