Break an infinite recursion between flex and bison.

Flex needs bison, but bison's test suite also needs flex, so we use an
untested build of bison to bootstrap flex first.
This commit is contained in:
Peter Simons 2013-09-09 10:38:27 +02:00
parent 701937b085
commit 2c5851b633

View file

@ -3552,16 +3552,25 @@ let
flex = flex2535;
flex2535 = callPackage ../development/tools/parsing/flex/flex-2.5.35.nix { };
flex2535 = callPackage ../development/tools/parsing/flex/flex-2.5.35.nix {
# Break infinite recursion: bison's test suite needs flex, so we
# use an untested bison build to build flex first.
yacc = bison.override { flex = null; };
};
flex2534 = callPackage ../development/tools/parsing/flex/flex-2.5.34.nix { };
flex2534 = callPackage ../development/tools/parsing/flex/flex-2.5.34.nix {
yacc = bison.override { flex = null; };
};
flex2533 = callPackage ../development/tools/parsing/flex/flex-2.5.33.nix { };
flex2533 = callPackage ../development/tools/parsing/flex/flex-2.5.33.nix {
yacc = bison.override { flex = null; };
};
# Note: 2.5.4a is much older than 2.5.35 but happens first when sorting
# alphabetically, hence the low priority.
flex254a = lowPrio (import ../development/tools/parsing/flex/flex-2.5.4a.nix {
inherit fetchurl stdenv yacc;
inherit fetchurl stdenv;
yacc = bison.override { flex = null; };
});
m4 = gnum4;