On Fri, Nov 28, 2025 at 9:35 AM Chao Li <[email protected]> wrote: > > Hi Hackers, > > I wanted to add “—enable-shadows-warning” to “./configure”, I updated > configure.ac, then installed autoconf on my MacBook, then when I tried to run > autoconf, I got an error: > > ``` > % autoconf > configure.ac:22: error: Autoconf version 2.69 is required. > Untested combinations of 'autoconf' and PostgreSQL versions are not > recommended. You can remove the check from 'configure.ac' but it is then > your responsibility whether the result works or not. > configure.ac:22: the top level > autom4te: error: /opt/homebrew/opt/m4/bin/m4 failed with exit status: 1 > ``` > > I saw my newly installed autoconf is version 2.72. Then I tried to install > autoconf 2.69, it says 2.69 is dead now: > ``` > ==> Fetching downloads for: [email protected] > Error: [email protected] has been disabled because it is a versioned formula! It > was disabled on 2024-12-14. > ```
Outside the main $thread question or updating on MacOS, I usually just grab https://ftp.gnu.org/gnu/autoconf/autoconf-2.69.tar.gz and ./configure && make install and it should work (and it's really tiny and compiles in like 500ms). -J.
