bug#65014: Configure Default Values

[Jacob Faibussowitsch]

Hello,

TL;DR: What packages does configure enable by default, i.e. do not require a 
--with-PACKAGE flag to explicitly enable? Moreover, what are the best practices 
for configuring emacs that don’t require min-maxing your configuration options 
every time.

——

I like to configure my emacs install to be as (reasonably) fully featured as 
possible, so I peruse the ./configure --help options from time to time to see 
if any new packages are available. If I notice a package I don’t have in my 
list of --with-package I add it, and reconfigure. 

But my configure command is now pretty long, and it strikes me that this 
brittle in the face of changes to configure. Suppose there is a change in best 
practices, and now --with-FOO is better than --with-BAR, but because I have 
--with-BAR (and forgot to remove it), configure won’t look for FOO. My emacs 
conf will be slightly suboptimal (perish the thought!) and I won’t be any the 
wiser.

Best regards,

Jacob Faibussowitsch
(Jacob Fai - booss - oh - vitch)