macOS AppleClang compilation error "no member named 'srgb'"

[Richard Barber]

/Users/rb/art/rtengine/improcfun.cc:106:75: error: no member named 'srgb' in 'rtengine::Settings'

        monitor = ICCStore::getInstance()->getProfile (options.rtSettings.srgb);

                                                       ~~~~~~~~~~~~~~~~~~ ^

I’m stuck on this error at 17% through.

[agriggio]

fixed compilation error on OSX

Fixes #305

→ <<cset 7efb733e1ad0>>

[agriggio]

sorry, my bad. Should be fixed now, thanks!