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diagnostics: complain about Bison directives when -Wyacc

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* src/complain.h, src/complain.c (bison_directive): New.
* src/scan-gram.l (BISON_DIRECTIVE): New.
Use it for Bison extensions.
This commit is contained in:
Akim Demaille
2013-02-27 15:43:26 +01:00
committed by Akim Demaille
parent ebe9b20841
commit d92ed9d9f7
6 changed files with 62 additions and 34 deletions
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4
tests/regression.at
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@@ -88,7 +88,9 @@ AT_SETUP([Early token definitions with --yacc])
# prologue, so that they can use the token definitions in it.
AT_BISON_OPTION_PUSHDEFS
AT_DATA_GRAMMAR([input.y],
# Not AT_DATA_GRAMMAR, which uses %code, which is not supported by Yacc.
AT_DATA([input.y],
[[%{
]AT_YYERROR_DECLARE_EXTERN[
]AT_YYLEX_DECLARE_EXTERN[