[cmake-developers] CMP0053 - "Simplify variable reference and escape sequence evaluation" - regression

[Nils Gladitz]

On 10/06/2014 02:48 PM, Brad King wrote:
> On 10/06/2014 06:39 AM, Nils Gladitz wrote:
>> CMP0053 warns/fails on "$ENV{ProgramFiles(x86)}".
>>
>> Could "()" be added to the legal set of characters when within an $ENV{}
>> expansion?
>
> We considered that case and decided to ask users to use a
> nested variable reference for that case.  There is a similar
> workaround in "Modules/Platform/WindowsPaths.cmake".
>
> One reason is that adding more characters to the allowed set,
> especially as a special case for $ENV{}, triggers extra tests
> and branches inside a tight loop that is used everywhere.

All right, no problem; I'll work around it.

Thanks!

Nils