Bug#894476: RCC: provide option to encode EPOCH timestamp

[Chris Lamb <lamby@debian.org>]

Hi Sune,

> "normal circumstances" is rcc on a source file, as opposed
> to an autogenerated file

I'm not /entirely/ sure what the difference is as I'm not in the
Qt/RCC world too often these days (alas !), but why just not use
SOURCE_DATE_EPOCH *iff* it is exported?

Normal systems simply do not have this envvar set, so there is really
no danger of it leaking elsewhere or causing unintended side-effects.

It would also have the benefit of not having to differentiate between
the two... :)


Best wishes,

-- 
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     : :'  :     Chris Lamb
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