/usr/bin/lazbuild-1.2.4 is in lcl-utils-1.2.4 1.2.4+dfsg2-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/bin/../lib/lazarus/1.2.4/lazbuild
/usr/bin/../lib/lazarus/1.2.4/lazbuild