###TL;DR export PATH=/usr/bin:/bin
TL;DR export PATH=/usr/bin:/bin
I had a look at config.log
to see where configure
mentioned the paths used by the Anaconda distribution and I found 3 references to miniconda3
— 2 were related to the PNG libraries
and one to the PATH
variable... of course the bin
directory of the Anaconda distribution has to be prepended to PATH
, hasn't it?
To be sure that was not a problem with my PATH
I issued the command
$ PATH=/usr/bin:/bin ./configure 2>/dev/null | grep -qs miniconda || make
...
make[1]: Leaving directory '/home/boffi/src/emacs-26.0.90'
$
I have now a way to shade private Anaconda libraries from the scrutiny of configure
, I have an instance of Emacs 26 too and eventually I have the doubt that
configure
had been too smart in deducing too much from my PATH
.
ps I'm not going to approve my answer because it seems to me just a workaround, I'm convinced that a better solution is possible.