On 2/8/23 15:15, Bruno Haible wrote:
m4_provide_if is not documented in the Autoconf manual. Let's hope it won't change incompatibly...
Yes, I hope so too. Gnulib is already using m4_provide_if in gnulib/m4/largefile.m4 (in code stolen from Autoconf) so to some extent we're exposed already, though of course this gnulib/m4/nullptr.m4 change increases Gnulib's exposure.
One possibility is for Autoconf to document m4_provide_if and friends, since they haven't changed in two decades. I'll cc this email to Akim to see whether he has insight as to why the Autoconf manual doesn't document m4_provide_if etc. already.
