Re: [Bug-glpk] Documentation for installing is wrong

[Andrew Makhorin]

Thank you for your bug report.

On Sun, 2016-09-04 at 17:11 -0300, Balaco Baco wrote:
> Recently I have downloaded GLPK 4.60 
> (http://ftp.gnu.org/gnu/glpk/glpk-4.60.tar.gz) and was following its 
> documentation to install it.
> 
> At some point, the file INSTALL says:
> 
> ==
> --with-zlib          Enable using the zlib data compression library
> 
>     This feature allows GLPK API routines and the stand-alone solver to
>     read and write compressed data files performing compression and
>     decompression "on the fly" (compressed data files are recognized by
>     suffix `.gz' in the file name). It may be useful in case of large
>     MPS files to save the disk space.
> 
>     For details about the zlib compression library see its web page at
>     <http://www.zlib.net/>.
> ==
> 
> And I decided to use this option, and the other for GMP library. So I am 
> trying to configure it with:
> 
> ./configure --prefix=/some/where/ --with-gmp --with-zlib
> 
> But the output says that --with-zlib is not a recognized option!
> 
> My output, the problem is in the last line:
> 
> ==
> $ ./configure --prefix=/var/tmp/glpk/ --with-gmp --with-zlib
> configure: WARNING: unrecognized options: --with-zlib
> checking for a BSD-compatible install... /usr/bin/install -c
[...]
> configure: WARNING: unrecognized options: --with-zlib
> $
> ==
> 
> 

Starting from 4.51 the zlib library was included in the glpk
distribution and linked automatically on building the package, so the
configure option '--with-zlib' was removed. You may just ignore the
warning about it.

The documentation and the file INSTALL will be corrected in a next
release of the package.