[GiNaC-list] Release GiNaC 1.5.1

[Jens Vollinga]

Hi everybody,

GiNaC 1.5.1 is out and available. The changes are:

* Fixed compiling problems with GNU g++ 3.4.
* Work around weird C++ RTTI behaviour on woe32 so GiNaC works on MinGW
   again.

As always, this release can be downloaded from

http://www.ginac.de/Download.html

Best wishes,
Jens