On Mon, Jul 09, 2018 at 05:41:42AM -0400, Frediano Ziglio wrote: > > > > In the shortlog, s/disable/remove/ > > > > I'll update > > > On Mon, Jul 09, 2018 at 09:04:07AM +0100, Frediano Ziglio wrote: > > > This flag disable some compiler feature which is used by some > > > system header potentially introducing some limitations. > > > Autotools does not set this flag. > > > > Autotools checks whether this flag is needed or not though, and mandates > > the use of at least c99 > > configure.ac has a call to AC_PROG_CC_C99 which translates to: > > > > configure:13330: checking for gcc option to accept ISO C99 > > configure:13492: result: none needed > > > > The difference is that autotools looks for additional flag to support > it while Meson add the flag to cap to C99. Yes, this is exactly what I meant, I understand the difference ;) > So if your compiler by default uses C89 and needs an additional flag > autotools will add the additional flags, Meson adds -std=c99 to avoid > for instance compiler use C11 features where in this case autotools > won't add any flag. > > Maybe change > > "Autotools does not set this flag." > > to > > "Autotools won't add any flag to limit compiler features to C99, instead > currently add for flag needed to support C99." "instead it currently only add flags to support c99 when needed" ? Christophe
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