When compiling OpenModelica from source on Mint (and possibly on Ubuntu?) the compile cheat sheet in the readme gives working instructions with one exception: several packages, such as libqtwebkit-dev, aren’t installed when you run the sudo apt-get build-dep openmodelica step. I had to use the following commands from the text further down the readme to get everything needed:
sudo apt-get install antlr libantlr-dev
sudo apt-get install libreadline-dev libqt4-dev libqtwebkit-dev libqwt5-qt4-dev
sudo apt-get install sqlite3 libsqlite3-dev
Note that I had to use to libreadline-dev instead of libreadline5-dev. Either way, that particular package was already installed, but I’ve left it here for completeness as the others on the same line weren’t.
I also needed to install bison and flex for the testsuite (not mentioned in the build instructions).
There may be other packages required that I already had installed, so my advice would be to install all of the packages they suggest rather than relying on build-dep.