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Fix build with Bison 3.7 and newer (#2505)

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Rupert Swarbrick 2020-08-18 17:12:52 +01:00 committed by GitHub
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docs/CONTRIBUTORS
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@ -53,6 +53,7 @@ Pieter Kapsenberg
Piotr Binkowski Piotr Binkowski
Qingyao Sun Qingyao Sun
Richard Myers Richard Myers
Rupert Swarbrick
Sean Cross Sean Cross
Sebastien Van Cauwenberghe Sebastien Van Cauwenberghe
Sergi Granell Sergi Granell

9
src/verilog.y
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@ -301,6 +301,15 @@ class AstSenTree;
// Bison 3.0 and newer // Bison 3.0 and newer
BISONPRE_VERSION(3.0,%define parse.error verbose) BISONPRE_VERSION(3.0,%define parse.error verbose)
// We run bison with the -d argument. This tells it to generate a
// header file with token names. Old versions of bison pasted the
// contents of that file into the generated source as well; newer
// versions just include it.
//
// Since we run bison through ../bisonpre, it doesn't know the correct
// header file name, so we need to tell it.
BISONPRE_VERSION(3.7,%define api.header.include {"V3ParseBison.h"})
// When writing Bison patterns we use yTOKEN instead of "token", // When writing Bison patterns we use yTOKEN instead of "token",
// so Bison will error out on unknown "token"s. // so Bison will error out on unknown "token"s.