you're welcome!

Fpc for Android is not very well documented as I'm sure many have found out
Unfortunately main problem of FreePascal for Android is not a documentation(as I remember there are some instructions on FreePascal/Lazarus wiki and even third party iso-file for VirtualBox with all installed for development), but support of Android. As you have already seen - I use my own patches for threads and one more patch for possibility to use units SysUtils, Math and Classes.