Andrea,

# cd cinelerra
# gdb ./ci

But all I get is the gdb prompt and it doesn't start cin.
What should I do?

It must not have built for some odd reason. The -O2 is just an optimization level so should not be an issue. That is the letter O not the number zero. GG says to try CFLAG="-O2 g" make -j8 rebuild_all instead. If that does not work, if you have the window output, email that.

We have tested this on 2 different computers here so have pretty much confirmed that that is the issue but figured that you would want to use this to avoid the transition slowdown for your own usage. gg/Phyllis