Running pprof2calltree with a (go) pprof file results in

     PHP Warning:  require(Console/Getopt.php): Failed to open stream: No
such file or directory in /usr/bin/pprof2calltree on line 51
     PHP Fatal error:  Uncaught Error: Failed opening required
'Console/Getopt.php' (include_path='.:/usr/share/php') in
/usr/bin/pprof2calltree:51
     Stack trace:
     #0 {main}
       thrown in /usr/bin/pprof2calltree on line 51

strace shows /usr/share/php/Console/Getopt.php being looked at; but
https://packages.debian.org/search?searchon=contents&keywords=%2Fusr%2Fshare%2Fphp%2FConsole%2FGetopt.php&mode=exactfilename&suite=unstable&arch=any
gives no result.