LD build/release-linux-x86/tremded.x86 build/release-linux-x86/ded/sv_game.o: In function `SV_GameSystemCalls': sv_game.c:(.text+0xe2d): undefined reference to `nettle_rsa_public_key_init' sv_game.c:(.text+0xe73): undefined reference to `nettle_rsa_public_key_clear' sv_game.c:(.text+0x126d): undefined reference to `nettle_rsa_public_key_prepare' sv_game.c:(.text+0x1284): undefined reference to `nettle_rsa_encrypt' collect2: ld returned 1 exit status make[2]: *** [build/release-linux-x86/tremded.x86] Error 1