apply workaround for renamed Gentoo's zlib macro to VSEARCH, FreeXL, libspatialite#94

bedroge merged 6 commits intoEESSI:mainEESSI/software-layer-scripts:mainfrom

TopRichard:eb_hooks.py-changes-for-GRASSTopRichard/software-layer-scripts:eb_hooks.py-changes-for-GRASSCopy head branch name to clipboard