Bug#956345: pegsolitaire FTCBFS: uses the build architecture pkg-config

[Helmut Grohne]

Source: pegsolitaire
Version: 0.3-1
Tags: patch upstream
User: debian-cross at lists.debian.org
Usertags: ftcbfs

pegsolitaire fails to cross build from source, because the upstream
Makefile hard codes the build architecture pkg-config. It becomes cross
buildable after making pkg-config substitutable. Please consider
applying the attached patch.

Helmut