How to get wine prefix (where wine is installed)?

Web search finds only how to set wine prefix. I want to put wine-gecko files in appropriate place. $ ls /usr/share/wine ls: cannot access '/usr/share/wine': No such file or directory According to the wine wiki page (see below) it means "you installed Wine in some $prefix rather than /usr,". I installed wine with something like apt-get install winehq-stable, how do I find out what prefix have it installed to? I've tried to use winetricks, but running winetricks settings list have not helped. https://wiki.winehq.org/Gecko : > When your application tries to display a site, Wine loads and uses its > custom implementation of Gecko. Wine tries to find Gecko installation > in following order: > > - If Wine Gecko is already installed in the prefix, that installation will be used. > - Wine 5.0-rc1 and newer will try to load Gecko from UNIX-style installation without installing it into the prefix. It will look for - > wine-gecko-$(VERSION)-$(ARC) subdirectory of standard local lookup > (see bellow). > - Wine will try to find Wine Gecko MSI installer on local machine (see bellow). If it can find it, it will install it into the prefix and use > it. > - If the file can't be found on your computer, Wine will download it for you. The downloaded .msi is saved to ~/.cache/wine. If thedownload > fails, you can download the appropriate version (see table below) > yourself from http://dl.winehq.org/wine/wine-gecko/ . > > Whenever Wine tries to find local installation, it will look in following directories: > > - In most cases, the file(s) should be placed in /usr/share/wine/gecko. > - If you installed Wine in some $prefix rather than /usr, $prefix/share/wine/gecko/ before /usr/share/wine/gecko. (e.g. if you > installed it from source, then place the files in > /usr/local/share/wine/gecko). > - If you're running Wine from build tree, Wine will try to find files in $build_dir/../gecko directory. > - Local cache, usually ~/.cache/wine.