After you add the path to common.cmake, delete the sikuli-script/build, sikuli-ide/build and sikuli-script/target/jar/tessdata directories, then build from scratch as described in build-linux.txt. The tesseract data dir is determined by cmake and the tesseract files are copied to sikuli-script/target/jar/tessdata by cmake. It took me a while to figure this out but after these steps Sikuli does not crash anymore.
After you add the path to common.cmake, delete the sikuli- script/ build, sikuli-ide/build and sikuli- script/ target/ jar/tessdata directories, then build from scratch as described in build-linux.txt. The tesseract data dir is determined by cmake and the tesseract files are copied to sikuli- script/ target/ jar/tessdata by cmake. It took me a while to figure this out but after these steps Sikuli does not crash anymore.