There's no need for the __linux__ check, as seccomp is Linux-only. Avoid
including <termios.h> which will clash with <sys/ioctl.h>.
--- a/src/seccomp.c
+++ b/src/seccomp.c
@@ -34,14 +34,7 @@ FILE_RCSID("@(#)$File: seccomp.c,v 1.31 2025/03/20 14:57:41 christos Exp $")
 #include <seccomp.h> /* libseccomp */
 #include <sys/prctl.h> /* prctl */
 #include <sys/socket.h>
-#ifdef __powerpc64__
-// See: https://sourceware.org/bugzilla/show_bug.cgi?id=32806
-# include <asm/termbits.h>
-#elif defined __linux__
-# include <linux/termios.h>
-#else
-# include <termios.h>
-#endif
+#include <asm/termbits.h>
 #include <sys/ioctl.h>
 #include <fcntl.h>
 #include <stdlib.h>