Add the #goo to allow use in C++.

Silence a few more warnings.
Strip down the mkfiles more.
Fix bug in X11 mouse handling, note groups.

src/mkmany

@@ -1,73 +1,26 @@
-PROGS=${TARG:%=$O.%}
-
 none:VQ:
 	echo usage: mk all, install, installall, '$O'.cmd, cmd.install, or cmd.installall
 
+PROGS=${TARG:%=$O.%}
+
 all:V:	$PROGS
 
 $O.%:	%.$O $OFILES $LIB
 	$LD -o $target $prereq $LDFLAGS
 
-%.$O:	$HFILES		# don't combine with following %.$O rules
-
-%.$O:	%.c
-	$CC $CFLAGS $stem.c
-
-%.$O:	%.s
-	$AS $AFLAGS $stem.s
-
-y.tab.h y.tab.c:	$YFILES
-	$YACC $YFLAGS $prereq
-
 %.install:V:	$BIN/%
 
 $BIN/%:	$O.%
 	$INSTALL $O.$stem $BIN/$stem
 
-%.installall:V:
-	for (objtype in $CPUS)
-		mk $stem.install
-
 install:V:
-	# for (i in $TARG)
-	# 	mk $MKFLAGS $i.install
 	for i in $TARG
 	do
 		mk $MKFLAGS $i.install
 	done
 
-installall:V:
-	for(objtype in $CPUS)
-		mk $MKFLAGS install
+CLEANFILES=$CLEANFILES $PROGS
+NUKEFILES=$NUKEFILES ${TARG:%=$BIN/%}
 
-%.safeinstall:V:
-	mk $O.$stem
-	test -e $BIN/$stem && mv $BIN/$stem $BIN/_$stem
-	mk $stem.install
+<$PLAN9/src/mkcommon
 
-%.safeinstallall:V:
-	for(objtype in $CPUS)
-		mk $MKFLAGS $stem.safeinstall
-
-safeinstall:V:
-	for(i in $TARG)
-		mk $MKFLAGS $i.safeinstall
-
-safeinstallall:V:
-	for (objtype in $CPUS)
-		mk safeinstall
-
-update:V:
-	update $UPDATEFLAGS $UPDATE
-
-nuke:V:
-	rm -f *.[$OS] y.tab.? y.debug y.output [$OS].* *.acid $TARG $NUKEFILES
-
-clean:V:
-	rm -f *.[$OS] y.tab.? y.debug y.output [$OS].* $TARG $CLEANFILES
-
-%.clean:V:
-	rm -f $stem.[$OS] [$OS].$stem $stem.acid $stem
-
-%.acid: %.$O $HFILES
-	$CC $CFLAGS -a $stem.c >$target