[Pkg-net-snmp-devel] Bug introduced in upstream V5-7-patches breaks debian builds

[Sam Tannous]

In V5-7-patches branch, recent changes to the configuration system (7c38dba08,
9e4b85d67 ) introduced bugs for Debian build systems since debian
dpkg-buildflags produces  " Werror=format-security" and not just "-Werror".

The existing "sed" expression in configure.ac only removes the "-Werror"
leaving a
dangling "=format-security" which fails in dh_auto_configure (as part of a
dpkg-buildpackage).

The patch looks a little odd because of m4 "absorbs" the square brackets in
the regular expression.

Instead of square brackets to collect the string after the "-Werror", we
need to use the quadrigraphs @<:@ and @:>@ for [ and ] respectively.

I've tested this by merging latest upstream V5-7-patches into my branch and
building with
dpkg-buildpackage -uc -us on latest Debian Jessie (Linux debian-stable
3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt25-2 (2016-04-08) x86_64 GNU/Linux).

Regards,
Sam Tannous
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