Pull up following revision(s) (requested by christos in ticket #46):

	lib/libc/gen/sysctl.c: revision 1.39
	distrib/utils/libhack/Makefile.inc: revision 1.40

We don't need descriptions for install media.

Use a trimmed version of sysctl to reduce the size so that atari floppies
work again.

Author: MartinHusemann

distrib/utils/libhack/Makefile.inc

@@ -1,4 +1,4 @@
-# $NetBSD: Makefile.inc,v 1.39 2021/05/25 10:58:41 martin Exp $
+# $NetBSD: Makefile.inc,v 1.39.8.1 2025/10/03 16:09:32 martin Exp $
 #
 # Include this fragment to build libhack.o
 # It is .o and not .a to make sure these are the
@@ -23,7 +23,7 @@ CPPFLAGS+=	-DLIBHACK
 
 HACKOBJS+=	getcap.o getgrent.o getnet.o getnetgr.o getpwent.o jemalloc.o \
 		localeconv.o multibyte.o perror.o runetable.o setlocale.o \
-		nl_langinfo.o strcasecmp.o \
+		nl_langinfo.o strcasecmp.o sysctl.o \
 		strerror.o strsignal.o syslog.o utmp.o fmtcheck.o \
 		aligned_alloc.o regcomp.o regexec.o wrap.o
 
@@ -65,6 +65,7 @@ CPPFLAGS.runetable.c+= -I${HACKSRC}/../../../lib/libc/citrus \
 			-DALL_80_TO_FF_SW1
 
 CPPFLAGS.syslog.c+= -I${HACKSRC}/../../../lib/libc/include
+CPPFLAGS.sysctl.c+= -I${HACKSRC}/../../../lib/libc/include
 CPPFLAGS.jemalloc.c+= -I${HACKSRC}/../../../lib/libc/include
 CPPFLAGS.gethost.c+= -I${HACKSRC}/../../../lib/libc/net
 
@@ -100,6 +101,7 @@ setlocale.o:	${HACKSRC}/setlocale.c
 strerror.o:	${HACKSRC}/strerror.c
 strsignal.o:	${HACKSRC}/strsignal.c
 syslog.o:	${HACKSRC}/syslog.c
+sysctl.o:	${HACKSRC}/sysctl.c
 utmp.o:		${HACKSRC}/utmp.c
 .if (${USE_YP} != "no")
 yplib.o:	${HACKSRC}/yplib.c

lib/libc/gen/sysctl.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: sysctl.c,v 1.38 2021/03/30 15:31:51 rillig Exp $	*/
+/*	$NetBSD: sysctl.c,v 1.38.10.1 2025/10/03 16:09:32 martin Exp $	*/
 
 /*-
  * Copyright (c) 1993
@@ -34,7 +34,7 @@
 #if 0
 static char sccsid[] = "@(#)sysctl.c	8.2 (Berkeley) 1/4/94";
 #else
-__RCSID("$NetBSD: sysctl.c,v 1.38 2021/03/30 15:31:51 rillig Exp $");
+__RCSID("$NetBSD: sysctl.c,v 1.38.10.1 2025/10/03 16:09:32 martin Exp $");
 #endif
 #endif /* LIBC_SCCS and not lint */
 
@@ -106,14 +106,19 @@ user_sysctl(const int *name, unsigned int namelen,
 	void *oldp, size_t *oldlenp,
 	const void *newp, size_t newlen)
 {
+#ifndef SMALL
+#define X(a)	a
+#else
+#define	X(a)	""
+#endif
 #define _INT(s, n, v, d) {					\
 	.sysctl_flags = CTLFLAG_IMMEDIATE|CTLFLAG_PERMANENT|	\
 			CTLTYPE_INT|SYSCTL_VERSION,		\
 	.sysctl_size = sizeof(int),				\
 	.sysctl_name = (s),					\
 	.sysctl_num = (n),					\
 	.sysctl_un.scu_idata = (v),				\
-	.sysctl_desc = (d),					\
+	.sysctl_desc = X(d),					\
 	}
 
 	/*