CGAL users discussion list

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I have found a mail posted several months ago related to this problem.

https://lists-sop.inria.fr/sympa/arc/cgal-discuss/2009-07/msg00031.html

In the mail,i said:

On a modern distro, you are better off not using g77 (or g2c) at all. For
taucs, replacing g77 by gfortran and removing -lg2c in the config file and
removing the precompiled libs (gfortran-compiled versions of which are 
provided
by my distro) works fine. 

I wondered what it means  by "removing the precompiled libs " ,and what  the
precompiled libs referrs to?
Will this method work?