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nixpkgs/pkgs/development/tools/parsing/bison/default.nix
Artturin 62e002d1cd bison: explicitly set strictDeps
see the comment
2022-05-22 16:40:13 +03:00

58 lines
2 KiB
Nix

{ lib, 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 = "3.8.2";
src = fetchurl {
url = "mirror://gnu/${pname}/${pname}-${version}.tar.gz";
sha256 = "sha256-BsnhO99+sk1M62tZIFpPZ8LH5yExGWREMP6C+9FKCrs=";
};
# gnulib relies on --host= to detect iconv() features on musl().
# Otherwise tests fail due to incorrect unicode symbol oconversion.
configurePlatforms = [ "build" "host" ];
# there's a /bin/sh shebang in bin/yacc which when no strictDeps is patched with the build stdenv shell
# however when cross-compiling it would still be patched with the build stdenv shell which would be wrong
# cannot add bash to buildInputs due to infinite recursion
strictDeps = stdenv.hostPlatform != stdenv.buildPlatform;
nativeBuildInputs = [ m4 perl ] ++ lib.optional stdenv.isSunOS help2man;
propagatedBuildInputs = [ m4 ];
enableParallelBuilding = true;
doCheck = true;
doInstallCheck = true;
meta = {
homepage = "https://www.gnu.org/software/bison/";
description = "Yacc-compatible parser generator";
license = 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 = lib.platforms.unix;
};
passthru = { glrSupport = true; };
}