nestedsums for GiNaC 1.1

Hi! Due to the popularity of Stefan Weinzierl's nestedsums library (see http://www.fis.unipr.it/~stefanw/nestedsums/), I have taken the liberty to create a version of the library that works with GiNaC 1.1. Sources and pre-packaged RPM files can be found in ftp://ftpthep.physik.uni-mainz.de/pub/nestedsums/ Changes to the original nestedsums 1.1.1 include: - adapted to GiNaC 1.1 API - testsuite can be run with "make check" - includes a nestedsums.m4 that provides an AM_PATH_NESTEDSUMS macro for autoconf scripts - includes a spec file for RPM generation Happy nesting, Christian -- / Physics is an algorithm \/ http://www.uni-mainz.de/~bauec002/