9704 move socket functions to libc

*** 203,212 ****
--- 203,217 ----
          $(COMPILE.c) -DM_I18N_MB -DI18N \
          -I$(LIBCBASE)/../port/regex \
          -I$(LIBCBASE)/../port/gen -o $@ $<
          $(POST_PROCESS_O)
  
+ # socket rules
+ pics/%.o: $(LIBCBASE)/../port/socket/%.c
+         $(COMPILE.c) -o $@ $<
+         $(POST_PROCESS_O)
+ 
  # stdio rules
  pics/%.o: $(LIBCBASE)/../port/stdio/%.c
          $(COMPILE.c) -o $@ $<
          $(POST_PROCESS_O)