Add support for zlib compression

Packages describing “zlib” as local USE flag

Package“zlib” Flag Description
app-text/libstarofficeEnable support for compressed data
dev-libs/libpcreAdd support for pcregrep command to search within gzip-compressed files (via virtual/zlib).
dev-libs/libpcre2Add support for pcregrep command to search within gzip-compressed files (via virtual/zlib).
dev-perl/Mail-IMAPClientInstall support for COMPRESS DEFLATE connections
mail-client/neomuttAdd zlib support for header cache compression
media-libs/imlib2Zlib loader support
media-sound/mpdEnable database compression with virtual/zlib
net-im/ejabberdEnable Stream Compression (XEP-0138) using zlib
net-irc/zncEnable mod_deflate-like gzip support for znc's web interface using virtual/zlib.
net-proxy/privoxyDecompress zlib compressed data using virtual/zlib before filtering
sci-physics/rivetBuild with virtual/zlib
sys-apps/kmodEnable support for gzipped modules
sys-apps/pciutilsSupport compressed pci.ids database
sys-apps/s390-toolsbuild the zgetdump and dump2tar utilities
www-servers/lighttpdEnable output compression via gzip or deflate algorithms from virtual/zlib

All packages providing a “zlib” USE flag (120)