Bug#1096451: coinor-dylp: ftbfs with GCC-15

[Heinrich Schuchardt]

See
Upstream pull-request https://github.com/coin-or/DyLP/pull/28
Launchpad bug 2125562
Launchpad merge request 
https://code.launchpad.net/~xypron/ubuntu/+source/coinor-dylp/+git/coinor-dylp/+merge/493228