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Upgrade parsers to Bison >= 3.0

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Bison 3.0 was released in 2013, and the current Debian stable (buster)
has version 3.3.2.

* m4/bison.m4: Remove -Wno-precedence and -Wno-empty-rule, keep
-Wno-deprecated just to protect from future deprecation warnings that
would be interpreted as errors.
* spot/parseaut/parseaut.yy, spot/parsetl/parsetl.yy: Use %empty
rules, prefer %precedence over %nonassoc, update %error-versbose and
%name-prefix to their more modern equivalent.
* spot/misc/trival.hh (maybe): Mark this function as noexcept to
please the compiler while compiling the parsers.
This commit is contained in:
Alexandre Duret-Lutz 2019-08-26 17:07:15 +02:00
parent e52aa8f9eb
commit b9808144b3
4 changed files with 53 additions and 47 deletions
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6
spot/misc/trival.hh
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@ -1,6 +1,6 @@
// -*- coding: utf-8 -*-
// Copyright (C) 2016, 2018 Laboratoire de Recherche et Developpement
// de l'Epita (LRDE).
// Copyright (C) 2016, 2018-2019 Laboratoire de Recherche et
// Developpement de l'Epita (LRDE).
//
// This file is part of Spot, a model checking library.
//
@ -64,7 +64,7 @@ namespace spot
{
}
static constexpr trival maybe()
static constexpr trival maybe() noexcept
{
return trival();
}