+(define-socket-option-int
+ sockopt-tcp-keepcnt :tcp sockint::tcp-keepcnt :linux "Available only on Linux.")
+(define-socket-option-int
+ sockopt-tcp-keepidle :tcp sockint::tcp-keepidle :linux "Available only on Linux.")
+(define-socket-option-int
+ sockopt-tcp-keepintvl :tcp sockint::tcp-keepintvl :linux "Available only on Linux.")
+