[Buildroot] ccache directory

[Yann E. MORIN]

On Sunday 24 July 2011 22:07:52 Peter Korsgaard wrote:
> >>>>> "Thomas" == Thomas De Schampheleire <patrickdepinguin+buildroot at gmail.com> writes:
>  >> It's furthermore not easy to handle a BR_CCACHE_DIR variable
>  >> containing shell variables (like $HOME) that should get expanded
>  >> before make handles it.
> 
>  Thomas> What exactly is the problem here? Other configuration options
>  Thomas> can use shell variables like $(USER) without problem. The only
>  Thomas> thing to keep in mind is to write these variables in make
>  Thomas> syntax with parentheses, rather than in shell syntax with
>  Thomas> either curly braces or nothing.
> 
> Indeed, that's the (potential) problem. People need to write the patch
> in make syntax rather than shell,

Well, parenthesis or braces, make does not mind:
  http://www.gnu.org/software/make/manual/make.html#Reference

Excerpt:
  To substitute a variable's value, write a dollar sign followed by the name
  of the variable in parentheses or braces: either ‘$(foo)’ or ‘${foo}’ is a
  valid reference to the variable foo.

Although parenthesis are being traditionally used in Makefile.

Regards,
Yann E. MORIN.

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