ruby/ruby.h: fix for older gcc
configure.in (__builtin_choose_expr_constant_p): in gcc 4.8 or earlier, __builtin_choose_expr() does not consider __builtin_constant_p(variable) a constant expression.
include/ruby/ruby.h (RUBY_SAFE_LEVEL_CHECK): fix for older gcc.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47867 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Added by nobu (Nobuyoshi Nakada) about 11 years ago
ruby/ruby.h: fix for older gcc
configure.in (__builtin_choose_expr_constant_p): in gcc 4.8 or
earlier, __builtin_choose_expr() does not consider
__builtin_constant_p(variable) a constant expression.
include/ruby/ruby.h (RUBY_SAFE_LEVEL_CHECK): fix for older gcc.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47867 b2dd03c8-39d4-4d8f-98ff-823fe69b080e