libutil: move ftime to libutil

It seems that there are still some applications that use ftime(3)
(for example, science/siconos and sysutils/lcdproc). The issue
is that we don't build libcompat as a shared library anymore.
The easiest solution is to move it to libutil, until we
deprecate it for good.

This solution was proposed by kib@ in
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=257789.

PR:		257789
MFC after:	1 month
Reviewed by:	kib (ages ago)
Differential Revision:	https://reviews.freebsd.org/D39994

(cherry picked from commit bb421be6c1174fad837973acc5e4a7bade4489db)

lib/libcompat/Makefile

@@ -7,12 +7,7 @@ NO_PIC=
 
 WARNS?=	0
 
-.PATH:	${.CURDIR}/4.1 ${.CURDIR}/4.3 ${.CURDIR}/4.4
-
-# compat 4.1 sources
-SRCS+=	ftime.c
-
-MAN+=	4.1/ftime.3
+.PATH:	${.CURDIR}/4.3 ${.CURDIR}/4.4
 
 # compat 4.3 sources
 SRCS+=	re_comp.c rexec.c

lib/libutil/Makefile

@@ -12,7 +12,7 @@ LIB=	util
 SHLIB_MAJOR= 9
 
 SRCS=	_secure_path.c auth.c cpuset.c expand_number.c flopen.c fparseln.c \
-	getlocalbase.c  gr_util.c \
+	ftime.c getlocalbase.c gr_util.c \
 	hexdump.c humanize_number.c kinfo_getfile.c \
 	kinfo_getallproc.c kinfo_getproc.c kinfo_getvmmap.c \
 	kinfo_getvmobject.c kld.c \
@@ -30,8 +30,8 @@ CFLAGS+= -DINET6
 
 CFLAGS+= -I${.CURDIR} -I${SRCTOP}/lib/libc/gen/
 
-MAN+=	cpuset.3 expand_number.3 flopen.3 fparseln.3 getlocalbase.3 hexdump.3 \
-	humanize_number.3 kinfo_getallproc.3 kinfo_getfile.3 \
+MAN+=	cpuset.3 expand_number.3 flopen.3 fparseln.3 ftime.3 getlocalbase.3 \
+	hexdump.3 humanize_number.3 kinfo_getallproc.3 kinfo_getfile.3 \
 	kinfo_getproc.3 kinfo_getvmmap.3 kinfo_getvmobject.3 kld.3 \
 	login_auth.3 login_cap.3 \
 	login_class.3 login_ok.3 login_times.3 login_tty.3 pidfile.3 \

lib/libutil/ftime.3

@@ -27,14 +27,14 @@
 .\"
 .\"     @(#)ftime.3	8.1 (Berkeley) 6/4/93
 .\"
-.Dd August 4, 2018
+.Dd May 28, 2024
 .Dt FTIME 3
 .Os
 .Sh NAME
 .Nm ftime
 .Nd get date and time
 .Sh LIBRARY
-.Lb libcompat
+.Lb libuitl
 .Sh SYNOPSIS
 .In sys/types.h
 .In sys/timeb.h

lib/libutil/ftime.c

@@ -33,6 +33,8 @@
 #include <sys/cdefs.h>
 #include <sys/types.h>
 #include <sys/time.h>
+
+#define _IN_LIBUITL
 #include <sys/timeb.h>
 
 int

sys/sys/timeb.h

@@ -39,7 +39,7 @@
 #ifndef _SYS_TIMEB_H_
 #define _SYS_TIMEB_H_
 
-#ifdef __GNUC__
+#if defined(__GNUC__) && !defined(_IN_LIBUITL)
 #warning "this file includes <sys/timeb.h> which is deprecated"
 #endif