tlbuild: zlib library

 
 6.4.2 The 'zlib' library in 'libs/zlib'
 ---------------------------------------
 
 This generic library is very much analogous to 'libpng', but without the
 dependency on any other library.  The file 'm4/kpse-zlib-flags.m4'
 supplies the configure option '--with-system-zlib', as well as
 '--with-zlib-includes' and '--with-zlib-libdir' to specify non-standard
 locations of the 'zlib' headers and/or library.