[Buildroot] ccache directory
Yann E. MORIN
yann.morin.1998 at anciens.enib.fr
Sun Jul 24 20:12:55 UTC 2011
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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