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.
-Brad
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