-Summary: GNU parser generator
+Summary: A GNU general-purpose parser generator
Summary(de): GNU-Parser-Generator
Summary(fr): Générateur d'analyseur lexical de GNU
Summary(pl): GNU generator sk³adni
Summary(tr): GNU ayrýþtýrýcý üreticisi
Name: bison
Version: 1.28
-Release: 1
+Release: 2
Copyright: GPL
Group: Development/Tools
Group(pl): Programowanie/Narzêdzia
%define _datadir /usr/share/misc
%description
-This is the GNU parser generator which is mostly compatible with yacc. Many
-programs use this as part of their build process. Bison is only needed on
-systems that are used for development.
+Bison is a general purpose parser generator which converts a grammar
+description for an LALR context-free grammar into a C program to parse that
+grammar. Bison can be used to develop a wide range of language parsers, from
+ones used in simple desk calculators to complex programming languages.
+Bison is upwardly compatible with Yacc, so any correctly written Yacc
+grammar should work with Bison without any changes. If you know Yacc, you
+shouldn't have any trouble using Bison (but you do need to be very
+proficient in C programming to be able to use Bison). Many programs use
+Bison as part of their build process. Bison is only needed on systems that
+are used for development.
+
+If your system will be used for C development, you should install Bison
+since it is used to build many C programs.
%description -l de
Dies ist der GNU-Parser-Generator, der größtenteils mit yacc kompatibel ist. Viele