On Sun, Sep 27, 2020 at 6:29 AM Gavin Smith <gavinsmith0123@xxxxxxxxx> wrote: > Because of the upcoming autoconf 2.70 release gives more warnings, I > checked the other files in gnulib in the m4 directory with > > autoupdate -v *.m4 2>&1 | tee log Thanks for doing this. I was getting set up to do it myself, but I got hung up on an unrelated problem (the version of "gettext" in Debian is severely outdated and this makes it hard to run the gnulib test suite). The diff produced by autoupdate is mostly not usable as is. In fact, it looks to me more like a todo list for bugs and missing features in autoupdate itself :-/ For instance, replacing `AC_REQUIRE([AC_HEADER_STDC])` with `AC_REQUIRE([m4_warn([obsolete], ...])` is Just Plain Wrong, as is replacing `pushdef([AC_CHECKING], [:])` with `pushdef([AS_MESSAGE([checking ...])],[:])`. However, the change to m4/gethostname.m4 looks correct. > * Redefinition of AC_CHECKING in several files to silence AC_CHECK_PROG This was discussed previously at https://lists.gnu.org/archive/html/bug-gnulib/2020-03/msg00032.html . It remains my opinion that the correct fix is to convert all of these to AC_CACHE_CHECK and not try to hide any checks from the person running configure. zw
