RE: unable to use $ORIGIN in rpath

[Paul Smith]

On Wed, 2007-08-15 at 18:02 +0100, Dave Korn wrote:

> I think I just ran across a similar situation, but I'm not sure it's the
> exact same.  I define a function in an include file:

This is a different problem.

> export if-cpu

This statement is a no-op.  Shell variable names must match the RE
[a-zA-Z_][a-zA-Z0-9_]*, so it's illegal for make to export a make
variable "if-cpu", containing a dash which is an illegal character in a
shell's variable name, into the environment.  Make will ignore all
variables that don't have a valid shell variable name when it exports.

> Q. - Am I correct in believing that after exporting a variable to the
> environment, the imported version in a submake will have been through a round
> of expansion?

Yes, make will expand recursive variables before exporting them.

> Q. - Is there any way round this?
> 
> Q. - Or is there just no way of defining a function at one makefile level that
> is any use in recursive submakes if it uses any functions or variables at all?

I haven't tested this exhaustively but I'm not prepared to go that far.
I think it should be possible.  However, one thing that WILL be
difficult or impossible is having a function that is usable BOTH at the
top level AND in submakes.

Again, I'd have to fool around with it for a while to be sure.

-- 
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