diff options
| author | shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-01-15 04:36:09 +0000 |
|---|---|---|
| committer | shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-01-15 04:36:09 +0000 |
| commit | 39ee36f63d94c7648a37472f2afa6cce9eb8405b (patch) | |
| tree | 8201d0d2c0107006910667b575474bca5325aebd /include | |
| parent | e41b4a45a4372167adf4717e7d5e87e29b352227 (diff) | |
disable __builtin_alloca_with_align for GCC 4.8
It seems to be a false positive that the configure detects this
undocumented function to be available on the compiler.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61836 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'include')
| -rw-r--r-- | include/ruby/ruby.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/ruby/ruby.h b/include/ruby/ruby.h index df98c0daa8..7006beab1b 100644 --- a/include/ruby/ruby.h +++ b/include/ruby/ruby.h @@ -1595,6 +1595,14 @@ rb_num2char_inline(VALUE x) #define ZALLOC(type) RB_ZALLOC(type) #define REALLOC_N(var,type,n) RB_REALLOC_N(var,type,n) +#if GCC_VERSION_BEFORE(4,8,6) +/* GCC 4.8.5 reportedly has this feature and is broken. + * The function is not officially documented below. + * Seems we should not use it. + * https://gcc.gnu.org/onlinedocs/gcc-4.8.5/gcc/Other-Builtins.html#Other-Builtins */ +# undef HAVE_BUILTIN___BUILTIN_ALLOCA_WITH_ALIGN +#endif + #ifdef HAVE_BUILTIN___BUILTIN_ALLOCA_WITH_ALIGN /* I don't know why but __builtin_alloca_with_align's second argument takes bits rather than bytes. */ |