Make can't find rule for obj/SDL_local.o

[ghost]

A strange error is occurring when using Make.

$ make
gcc src/cengine.c -c -I ./include -std=gnu99 -Wall -Werror -Wno-unused -O3 -g -fPIC -o obj/cengine.o
gcc src/casset.c -c -I ./include -std=gnu99 -Wall -Werror -Wno-unused -O3 -g -fPIC -o obj/casset.o
gcc src/corange.c -c -I ./include -std=gnu99 -Wall -Werror -Wno-unused -O3 -g -fPIC -o obj/corange.o
gcc src/cui.c -c -I ./include -std=gnu99 -Wall -Werror -Wno-unused -O3 -g -fPIC -o obj/cui.o
gcc src/centity.c -c -I ./include -std=gnu99 -Wall -Werror -Wno-unused -O3 -g -fPIC -o obj/centity.o
gcc src/cgraphics.c -c -I ./include -std=gnu99 -Wall -Werror -Wno-unused -O3 -g -fPIC -o obj/cgraphics.o
gcc src/cjoystick.c -c -I ./include -std=gnu99 -Wall -Werror -Wno-unused -O3 -g -fPIC -o obj/cjoystick.o
gcc src/caudio.c -c -I ./include -std=gnu99 -Wall -Werror -Wno-unused -O3 -g -fPIC -o obj/caudio.o
make: *** No rule to make target `obj/SDL_local.o', needed by `libcorange.so'.  Stop.

The rule is specified by:

obj/%.o: src/*/%.c | obj
    $(CC) $< -c $(CFLAGS) -o $@

and src/SDL/SDL_local.c exists.

Running Arch linux, using GCC 4.8.1 and GNU Make 3.82.

[orangeduck]

Perhaps this query might be worth also posting to some Make or Arch mailing list although I know any of any directly myself.