Bah. Kris says the default-to-a.out knowledge has migrated into the

official gnu configure scripts and a couple of other places.

Add an example noisy, loud and annoying placeholder for /usr/bin/objformat
if it turns out to too much trouble to be gone.  It is not connected to
the build yet.

usr.bin/objformat/Makefile

@@ -0,0 +1,7 @@
+# $FreeBSD$
+
+SCRIPTS=objformat.sh
+NO_MAN=
+
+.include <bsd.prog.mk>
+

usr.bin/objformat/objformat.sh

@@ -0,0 +1,26 @@
+#! /bin/sh
+# $FreeBSD$
+# /usr/bin/objformat has been obsolete and deprecated for years.
+# Please remove any build/configure script references.  New software
+# should only have to only support elf on FreeBSD.
+#
+# FreeBSD-2.0, 2.1.x and 2.2.x will use a.out
+# FreeBSD-3.x will have a real /usr/bin/objformat and are more likely
+#  to be elf than a.out.
+# Assume that FreeBSD-4.x will be using elf even though it is
+#  **theoretically** possible to build an a.out world.
+# FreeBSD-5.x and higher only support elf.
+#
+
+echo '========================================================' 1>&2
+echo '== PLEASE REMOVE ALL REFERENCES TO /usr/bin/objformat ==' 1>&2
+echo '=========== IT HAS BEEN OBSOLETE FOR YEARS! ====-=======' 1>&2
+echo '========================================================' 1>&2
+(echo '========================================================' >/dev/tty) 2>/dev/null
+(echo '== PLEASE REMOVE ALL REFERENCES TO /usr/bin/objformat ==' >/dev/tty) 2>/dev/null
+(echo '=========== IT HAS BEEN OBSOLETE FOR YEARS! ====-=======' >/dev/tty) 2>/dev/null
+(echo '========================================================' >/dev/tty) 2>/dev/null
+# highlight the nag or it will never be fixed!
+sleep 10
+echo elf
+exit 0