Rework configure script to be more standard

[mithro]

• Use --prefix to specify where in the file system to install the PDKs too.

• Use DESTDIR with make install to create a distribution that can be extracted to --prefix using a package management / system administration system.

• Continue to support old makefile targets as aliases.

• Add a autogen.sh script.

[mithro]

I'm unsure how to continue to support the old --with-sky130-local-path / --with-sky130-dist-path values....

[mithro]

Friendly poke?

[RTimothyEdwards]

Looks okay to me. There are a couple of minor errors but I will patch them up by hand.

[RTimothyEdwards]

Pulled, fixed merge conflicts, corrected a few typos, and committed.

Note that for reasons of backwards compatibility, I kept the directory name "pdk", not "pdks". Also, I made the default prefix to be "/usr", so that by default open_pdks installs into "/usr/share/pdk", not "/usr/local/share/pdk".

Update was made to the repository at opencircuitdesign.com; the changes will update on github at 3:00am EDT.

[mithro]

Pulled, fixed merge conflicts, corrected a few typos, and committed.

Note that for reasons of backwards compatibility, I kept the directory name "pdk", not "pdks". Also, I made the default prefix to be "/usr", so that by default open_pdks installs into "/usr/share/pdk", not "/usr/local/share/pdk".

That violates the traditional Linux standard which is;

• Installs from source should go to /usr/local
• Installs from packages should go to /usr

[RTimothyEdwards]

Oh, is that a standard? If so, it has historically been badly conceived and improperly executed, but sure, whatever.

[RTimothyEdwards]

Fixed.

[mithro]

https://refspecs.linuxfoundation.org/FHS_3.0/fhs/ch04s09.html

[mithro]

See also https://unix.stackexchange.com/questions/11544/what-is-the-difference-between-opt-and-usr-local

[mithro]

And https://www.linuxjournal.com/content/filesystem-hierarchy-standard

[mithro]

And https://newbedev.com/usr-bin-vs-usr-local-bin-on-linux :-)