Update build instructions to install needed shared libraries

[gavinp]

It seems that the default build of cryptominisat5 used shared libraries that weren't installed using these build instructions.

I've added the (scary) minimal stuff I did that makes it work right away.

[msoos]

Hi,

Thanks! That's true, the installation is not included. At the same time, to run the executable from where it's at, it's not necessary to install these libraries. Maybe we should make a separate install instruction set? Installing things by default can make people's systems pretty messy, e.g. if they want o later install a different version of the library, or they install it later at a different place (e.g. /usr/local/lib instead of /usr/lib). So nowadays I am cautious of giving instructions to install things. I have seen colleagues install things to /usr/lib and then have trouble with updated libraries colliding.

What do you think?

Thanks again,

Mate

[gavinp]

I think your solution is absolutely the best. Installation is indeed not needed; but the executable built in the quick start instructions presumes installed dynamic libraries; one of them from a program that doesn't even install dynamic libraries! Hence my PR including the super scary "cp" to /usr/lib.

Either way, the quick start instructions are materially wrong, and in a way that can confuse many users.

I'll take a few minutes to poke at them and come up with instructions to statically link or something. Feel free to close this PR if I leave it alone too long, but I should come back with something better.

I'm enjoying looking at the state of open source SAT. I'm curious about the interface between SAT and mixed integer programming solvers.

[msoos]

Hi,

Yeah, good point. BTW, it's trivial to build statically! The GitHub actions actually compiles statically:

https://github.com/msoos/cryptominisat/actions/runs/12244747429

Basically, the only difference is to add -DSTATICCOMPILE=ON to the cmake of CryptoMiniSat and you'll be good to go:

cmake  -DSTATICCOMPILE=ON ..
make

Done :) In fact, the reason I use a branch of cadical/cadiback is because by default they don't create both dynamic&static libraries, which would make the above impossible. But anyway, you can also just download it the latest CryptoMiniSat from the Artifacts of GitHub Actions. That will do the trick :)