Upgrade `m4/doxygen.m4` to `ax_prog_doxygen.m4` from GNU Autoconf Archive?

[DimitriPapadopoulos]

Looks like a more recent version and maintained of m4/doxygen.m4:

https://www.gnu.org/software/autoconf-archive/ax_prog_doxygen.html

[benmcollins]

Is there something not working with the current version? Does it require updating doxygen.cfg and doxygen.mk?

[DimitriPapadopoulos]

The current version appears to be working fine. I was just wondering where it comes from, I could find only the GNU Autoconf Archive version.

Besides, I wouldn't recommend upgrading to a very recent version, my experience is that the GNU Autonconf Archive has evolved in the last few years, adding a bunch of dependencies to each m4 file.