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doc: -Wzero-as-null-pointer-constant was added to GCC 4.7

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It is not supported by previous versions.
See https://www.gnu.org/software/gcc/gcc-4.7/changes.html
Reported by Nelson H. F. Beebe.

* doc/bison.texi (Calc++ Scanner): here.
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Akim Demaille
2018-11-03 07:13:19 +01:00
parent 3bf429aed8
commit f1e0839c9e
1 changed files with 1 additions and 1 deletions
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doc/bison.texi
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@@ -11836,7 +11836,7 @@ then the parser's to get the set of defined tokens.
// Of course, when compiling C as C++, expect warnings about NULL. // Of course, when compiling C as C++, expect warnings about NULL.
#if defined __clang__ #if defined __clang__
# pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" # pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant"
#elif defined __GNUC__ #elif defined __GNUC__ && 407 <= __GNUC__ * 100 + __GNUC_MINOR__
# pragma GCC diagnostic ignored "-Wzero-as-null-pointer-constant" # pragma GCC diagnostic ignored "-Wzero-as-null-pointer-constant"
#endif #endif