Installing .req files via DB vs. REQ?

["J. Lewis Muir via Tech-talk" <tech-talk at aps.anl.gov>]

Hi, Tech-Talkers!

What's the right way for an EPICS module to install .req files?

On RHEL 9 x86_64 with EPICS 7.0.8.1, I've seen some modules that add
.req files to the DB make variable; for example:

  https://urldefense.us/v3/__https://github.com/epics-modules/motor/blob/26efd2f044f6281b5c5889d604cd43f84b4bf615/motorApp/Db/Makefile*L22__;Iw!!G_uCfscf7eWS!Y8ODgDI84V7emUA4orWL6bHzwKq0Si2HpJk-XRcZo2jDfFUZv7grO1CMmT-G8S5WRDyzZ6DWb2APlisRm8b0pg$ 

And I've seen some modules that add .req files to the REQ make variable;
for example:

  https://urldefense.us/v3/__https://github.com/epics-modules/sscan/blob/6cf674065a7855d4b033b7a97ab941758dac715b/sscanApp/Db/Makefile*L33__;Iw!!G_uCfscf7eWS!Y8ODgDI84V7emUA4orWL6bHzwKq0Si2HpJk-XRcZo2jDfFUZv7grO1CMmT-G8S5WRDyzZ6DWb2APliv3vv5y9g$ 

For the modules that add .req files to the DB make variable, the .req
files get installed into the module's "db" directory.  And for the
modules that add .req files to the REQ make variable, those .req files
don't seem to get installed anywhere.

So, I'm inclined to think that adding .req files to the DB make variable
is the right way to install .req files, and adding them to the REQ make
variable is wrong and doesn't work.  Or am I missing something?

Thanks!

Lewis