Compile error on MacOS

[Frank de Jong]

For a while I have been running into this compile issue on MacOS:

/Users/me/src/art/rtengine/ipcolorcorrection.cc:252:46: error: variable-sized object may not be initialized

std::unique_ptr<HaldCLUTApplication> lut[n] = {};

Is this something on my end?

[agriggio]

fix compilation error due to the use of non-standard code

Fixes #264

→ <<cset a9a2108f516b>>

[agriggio]

Thanks – should be fixed now