Tell the compiler that it will find these at link time; this fixes the implicit declaration warnings.
--- ./gnumach/device/net_io.h 2013-06-28 10:10:49.877024364 +0200 +++ ./gnumach1/device/net_io.h 2013-06-29 09:42:58.498730719 +0200 @@ -83,4 +83,9 @@ #define net_kmsg_alloc() ((ipc_kmsg_t) kalloc(net_kmsg_size)) #define net_kmsg_free(kmsg) kfree((vm_offset_t) (kmsg), net_kmsg_size) +extern unsigned long int ntohl(unsigned long int); +extern unsigned short int ntohs(unsigned short int); +extern unsigned long int htonl(unsigned long int); +extern unsigned short int htons(unsigned short int); + #endif /* _DEVICE_NET_IO_H_ */
