On Fri, Jan 24, 2020 at 8:47 PM Nick Bowler <nbow...@draconx.ca> wrote: > > On 1/24/20, Christian Biesinger <cbiesin...@google.com> wrote: > > I noticed that autoconf has a macro to enable C99 (AC_PROG_CC_C99), > > but apparently no such macro for C11 or C18. I was wondering if a > > patch for that would be acceptable in principle or if this is missing > > intentionally? > > In autoconf master, the AC_PROG_CC_C99 macro is deprecated and no longer > recommended for use. > > AC_PROG_CC now tries to select the highest language revision supported > by the compiler.
Nice. Is there a way to query what language revision it found, so that configure scripts can check that it's at least C99 if that's what the program requires? > Unfortunately, the improved AC_PROG_CC has not yet made it into an > Autoconf release, primarily due to a lack of volunteers willing to > invest the time to help with the process. That is unfortunate. So I guess I need to decide whether to write my own macro, settle for C99, or copy the unreleased autoconf one. Thanks for the responses also to Bob and Nicholas. Christian
