Bug#998779: bs1770gain: bashism in configure script

[Petter Reinholdtsen <pere@hungry.com>]

[Peter Belkner]
> is the intention of your patch to substitute all single comparison 
> singes ('=') by double comparison singes ('==')?

My intention with the patch was the other way, to replace 'test x == y'
with 'test x = y', as he latter is POSIX notation, while the former is
bash notation.  See
<URL: https://pubs.opengroup.org/onlinepubs/9699919799/utilities/test.html >

> I'm asking because on my site 'configure' is derived an hence 
> unfortunately I cannot simply apply your patch.

Note, my patch was for configure.ac, the source of configure.

-- 
Happy hacking
Petter Reinholdtsen