+ # if valgrind is available check the build is without error, reduce depth to speedup testing, but not too shallow to catch more cases.
+ - if [ -x "$(command -v valgrind )" ] ; then make clean && make ARCH=x86-64 debug=yes build && valgrind --error-exitcode=42 ./stockfish bench 128 1 10 default depth 1>/dev/null ; fi