On Thu, 2003-02-20 at 13:35, Brian Murphy wrote: > Jun Sun wrote: > > >Is this allowed? Can't find any such usage in kernel other > >than the worrisome comment below: > > > >arch/arm/Makefile:# Grr, ?= doesn't work as all the other assignment operators do. Make bug? > > > > > > > > > It worked for me when I tested the patch, at least for this simple case. > Might have something to do with the make version, when was the comment > written? > > brm@brian:~$ make -v > GNU Make version 3.79.1, by Richard Stallman and Roland McGrath. I know for a fact that this syntax works for me on RH7.3 because we use it heavily in a bunch of tools makefiles. Pete