This macro is defined in the system headers on all moderately new
Linux versions, FreeBSD-13 and NetBSD-9, so our local fallback is
not needed anymore.
/* Userland defines for Linux DCCP support. */
/* Userland defines for Linux DCCP support. */
-#ifndef IPPROTO_DCCP
-#define IPPROTO_DCCP 33 /**< IANA assigned value. */
-#endif
-
#ifndef SOL_DCCP
#define SOL_DCCP 269 /**< Linux socket level. */
#endif
#ifndef SOL_DCCP
#define SOL_DCCP 269 /**< Linux socket level. */
#endif