Bug#850972: firefox: FTBFS: configure: error: cannot determine icu version number from uvernum.h header file

[John Paul Adrian Glaubitz]

Hi!

I have been running into this issue as well while testing new patches for Firefox
upstream. I actually first suspected that my build environment was broken, so
I generated a fresh chroot. But it seems this is actually a bug.

Looking at the build log, this line in particular looks suspicious:

> sed: character class syntax is [[:space:]], not [:space:]

Almost looks like sed changed its syntax although I can't really believe this
would happen without a major version bump.

Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz at debian.org
`. `'   Freie Universitaet Berlin - glaubitz at physik.fu-berlin.de
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