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build: reenable -Wtype-limits

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See https://lists.gnu.org/archive/html/bug-bison/2019-10/msg00061.html
to https://lists.gnu.org/archive/html/bug-bison/2019-10/msg00073.html.

Paul Eggert's changes in gnulib do fix the issue for modern GCCs (7,
8, 9) on macOS.  Unfortunately these warnings are back on the
CI (GNU/Linux) with GCC 4.6, 4.7, (not 4.8) and 4.9.

Disable the warning locally.

* configure.ac (warn_common, warn_tests): Remove -Wtype-limits.
* src/system.h (IGNORE_TYPE_LIMITS_BEGIN, IGNORE_TYPE_LIMITS_END): New.
* src/InadequacyList.c, src/parse-gram.c, src/parse-gram.y,
* src/symtab.c: Use it.
This commit is contained in:
Akim Demaille
2019-10-23 23:10:11 +02:00
parent bc5efb558d
commit 76597d01f3
6 changed files with 25 additions and 6 deletions
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2
src/symtab.c
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@@ -1010,8 +1010,10 @@ symbols_token_translations_init (void)
sym_content *this = symbols[i]->content;
if (this->user_token_number == USER_NUMBER_UNDEFINED)
{
IGNORE_TYPE_LIMITS_BEGIN
if (INT_ADD_WRAPV (max_user_token_number, 1, &max_user_token_number))
complain (NULL, fatal, _("token number too large"));
IGNORE_TYPE_LIMITS_END
this->user_token_number = max_user_token_number;
}
if (this->user_token_number > max_user_token_number)