Bug#946255: dwz: returns exit status 1, causing FTBFS in deal.ii

[Graham Inggs <ginggs@debian.org>]

Source: dwz
Version: 0.13-3
Severity: important
Affects: src:deal.ii

Hi Maintainer

Since upgrading to dwz 0.13-3 (and with 0.13-4), deal.ii FTBFS with the 
following error:

   dh_dwz -O--max-parallel=2
dwz: 
debian/libdeal.ii-9.1.1/usr/lib/x86_64-linux-gnu/libdeal.ii.so.9.1.1: 
Too many DIEs, not optimizing
dwz: Too few files for multifile optimization
dh_dwz: dwz 
-mdebian/libdeal.ii-9.1.1/usr/lib/debug/.dwz/x86_64-linux-gnu/libdeal.ii-9.1.1.debug 
-M/usr/lib/debug/.dwz/x86_64-linux-gnu/libdeal.ii-9.1.1.debug -- 
debian/libdeal.ii-9.1.1/usr/lib/x86_64-linux-gnu/libdeal.ii.g.so.9.1.1 
debian/libdeal.ii-9.1.1/usr/lib/x86_64-linux-gnu/libdeal.ii.so.9.1.1 
returned exit code 1
make: *** [debian/rules:7: binary] Error 255

With dwz 0.13-1 and 0.13-2, the build is successful, but includes the 
same warnings:

   dh_dwz -O--max-parallel=2
dwz: 
debian/libdeal.ii-9.1.1/usr/lib/x86_64-linux-gnu/libdeal.ii.so.9.1.1: 
Too many DIEs, not optimizing
dwz: Too few files for multifile optimization
dh_dwz: No dwz multifile created, but not explicitly requested either so 
ignoring it.
dh_dwz: Common issues include no debug information at all (missing -g) and
dh_dwz: compressed debug information (#931891).

Regards
Graham