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{ stdenv, fetchurl, m4, perl, help2man }:
# Note: this package is used for bootstrapping fetchurl, and thus
# cannot use fetchpatch! All mutable patches (generated by GitHub or
# cgit) that are needed here should be included directly in Nixpkgs as
# files.
stdenv.mkDerivation rec {
pname = "bison";
version = "3.7.2";
src = fetchurl {
url = "mirror://gnu/${pname}/${pname}-${version}.tar.gz";
sha256 = "111ax2imnydvrpcys5ami8ixn0a50m7a5pims7cbyysi8h8djp21";
};
nativeBuildInputs = [ m4 perl ] ++ stdenv.lib.optional stdenv.isSunOS help2man;
propagatedBuildInputs = [ m4 ];
doCheck = false; # fails
doInstallCheck = false; # fails
meta = {
homepage = "https://www.gnu.org/software/bison/";
description = "Yacc-compatible parser generator";
license = stdenv.lib.licenses.gpl3Plus;
longDescription = ''
Bison is a general-purpose parser generator that converts an
annotated context-free grammar into an LALR(1) or GLR parser for
that grammar. Once you are proficient with Bison, you can use
it to develop a wide range of language parsers, from those used
in simple desk calculators to complex programming languages.
Bison is upward compatible with Yacc: all properly-written Yacc
grammars ought to work with Bison with no change. Anyone
familiar with Yacc should be able to use Bison with little
trouble. You need to be fluent in C or C++ programming in order
to use Bison.
'';
platforms = stdenv.lib.platforms.unix;
};
passthru = { glrSupport = true; };
}
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