configure.ac: Require C99
We already added AC_PROG_CC_C99 in r66605. This commit stops warning C99 features.
[Misc #15347] [close https://github.com/ruby/ruby/pull/2064]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66771 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Added by k0kubun (Takashi Kokubun) over 5 years ago
configure.ac: Require C99
We already added AC_PROG_CC_C99 in r66605.
This commit stops warning C99 features.
[Misc #15347] [close https://github.com/ruby/ruby/pull/2064]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66771 b2dd03c8-39d4-4d8f-98ff-823fe69b080e