Arch Linux

Description:
http://cpansearch.perl.org/src/MSTPLBG/AnyEvent-I3-0.16/lib/AnyEvent/I3.pm line 6 uses JSON::XS.

Additional info:
* perl-anyevent-i3 0.16-1


Steps to reproduce:
1) Have i3-wm and perl-anyevent-i3, but not perl-json-xs (which is only a checkdepends of perl-anyevent-i3).
2) While i3 is running, run i3-save-tree
3) The following error is output:
Can't locate JSON/XS.pm in @INC (you may need to install the JSON::XS module) (@INC contains: /usr/lib/perl5/site_perl /usr/share/perl5/site_perl /usr/lib/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib/perl5/core_perl /usr/share/perl5/core_perl .) at /usr/share/perl5/vendor_perl/AnyEvent/I3.pm line 6.
BEGIN failed--compilation aborted at /usr/share/perl5/vendor_perl/AnyEvent/I3.pm line 6.
Compilation failed in require at /usr/bin/i3-save-tree line 19.
BEGIN failed--compilation aborted at /usr/bin/i3-save-tree line 19.
4) Install perl-json-xs
5) Re-run i3-save-tree
6) Program runs as expected.

Admittedly both perl-json-xs and perl-anyevent-i3 are both marked as optional dependencies of i3-wm to support layout saving, but this seems like it would be better expressed by having a concrete dependency of perl-anyevent-i3 on perl-json-xs.