Add 4x compat libs for Alpha.

These come from the live FS of the BSDi FreeBSD/AXP 4.2 disc set.

Forgotten by:	non-Alpha person

lib/compat/compat4x.alpha/Makefile

@@ -0,0 +1,37 @@
+# $FreeBSD$
+
+DISTRIBUTION=	compat4x
+
+LIBCOMPATDIR=	${LIBDIR}/compat
+
+LIBS=	\
+	libc.so.4 \
+	libc_r.so.4 \
+	libdialog.so.4 \
+	libedit.so.3 \
+	libfetch.so.2 \
+	libftpio.so.5 \
+	libhistory.so.4 \
+	libncurses.so.5 \
+	libreadline.so.4 \
+	libstdc++.so.3 \
+	libutil.so.3 \
+	libwrap.so.3 \
+	libxpg4.so.3
+
+CLEANFILES+=	${LIBS}
+
+all:	${LIBS}
+
+.for lib in ${LIBS}
+${lib}:	${lib}.gz.uu
+	uudecode -p ${.CURDIR}/${lib}.gz.uu | gunzip > ${lib}
+.endfor
+
+beforeinstall:
+	${INSTALL} ${COPY} -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} ${LIBS} \
+		${DESTDIR}${LIBCOMPATDIR}
+
+# Get all the fruit, even though we don't set PROG.
+# XXX bsd.lib.mk has fruitflies, e.g., it fails if LIBS is empty.
+.include <bsd.prog.mk>