>
quoted
Looks ok - but I do not see why use of $(shell ...) did not work out.
As I understand it, the $(shell ...) construct doesn't "work" in the case
cited above because make evaluates/expands the $(shell ...) stuff while it
is parsing the makefile and building the command list--i.e. before it has
issued any commands to build anything. What seems to be desired in this
case is a file-existence test which runs "inline" with respect to the
preceding commands. The use of $(shell ...) inside a command
subverts/preempts that natural sequence. I think. :-)
That explains it - thanks!
Sam