libc_C.1: libc.a(signal.o) libc.a(signal.o): $(OBJDIR)/signal.o @$(AR) $(ARFLAGS) $@ $(OBJDIR)/$% $(OBJDIR)/signal.o: src/signal/signal.c $(OBJDIR)/signal.o: @echo " [CC] $@" @mkdir -p $(@D) @$(CC) -c -o $@ $(CFLAGS) src/signal/signal.c