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yacc.c: don't define _Noreturn uselessly

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Clang warns:

     aux/x.h:97:11: error: macro name is a reserved identifier
           [-Werror,-Wreserved-id-macro]
     #  define _Noreturn YY_ATTRIBUTE ((__noreturn__))

Reported by Derek Clegg.
http://lists.gnu.org/archive/html/bug-bison/2018-10/msg00024.html

* data/c.m4 (b4_attribute_define): Don't define _Noreturn unconditionally.
* data/glr.c: Ask for _Noreturn.
This commit is contained in:
Akim Demaille
2018-10-23 07:12:09 +02:00
parent ab3dc5415c
commit b5515215c1
2 changed files with 9 additions and 8 deletions
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2
data/glr.c
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@@ -311,7 +311,7 @@ static YYLTYPE yyloc_default][]b4_yyloc_default;])[
} while (yyfalse)
#endif
]b4_attribute_define[
]b4_attribute_define([noreturn])[
#ifndef YYASSERT
# define YYASSERT(Condition) ((void) ((Condition) || (abort (), 0)))