Known Issues in 20230614 BUSTER release:

Pipedream missing semicolon

We've had reports that on some platforms (using newer Perl versions like 5.36 - 5.34 still is ok) "pipedream -checkdeps" reports an error

Can't modify undef operator in scalar assignment at
/home/sharp3/buster-2.10/scripts/../lib/perl5/BDG/ line 138,
near "undef;"
Compilation failed in require at /home/sharp3/buster-2.10/scripts/pipedream
line 22.
BEGIN failed--compilation aborted at
/home/sharp3/buster-2.10/scripts/pipedream line 22.

This is due to a missing semicolon on line 137:

our $numallchains   = undef 

should be

our $numallchains   = undef;

In that case, you should be able to fix it via

  sed -i "s/our \$numallchains   = undef /our \$numallchains   = undef;/g" $BDG_home/lib/perl5/BDG/

Linux distributions with Perl 5.36 (or above): Fedora 37 (released 11/2022), Fedora 38 (released 04/2023), Ubuntu 23.04 (released 04/2023), Debian 12 (released 06/2023).