Re: non-official updated version of glpk (4.61 pre-release)

Please see an updated version of glpk here:
http://sourceforge.net/projects/noumenon/files/tmp/
(Note that this is *not* an official release.)

The following changes were made:

1. The option was added to build a stdcall DLL with MSVC10 (for MS 
   Windows version).

2. The option was added to build a re-entrant version of the package.
   If the compiler supports the thread local storage-class attribute,
   this option is enabled by default on running the configure script.

Thanks to David for suggestion and to Chris for a patch.

A re-entrant version of the package allows running multiple
*independent* instances of glpk in different threads of a multi-threaded
application.

If the application calls glpk routines from multiple threads, the 
following should be taken into account:

1) a thread should not access glpk program objects (e.g. glp_proc)
   created by other threads;

2) to prevent memory leaks each thread before termination should call 
   the glpk api routine glp_free_env.


Andrew Makhorin

PS: I tested a re-entrant version of glpk under Debian GNU/Linux and
under Cygwin. At least glpsol seems to work.