Arch Linux

Description:
Plugins mysql_ and ntp_states included in the munin-node package requires extra dependencies.
mysql_ plugin needs community/perl-dbi and Cache::Cache module - installable via CPAN.
ntp_states plugin needs Net::DNS::Resolver module - installable via CPAN too.

community/perl-dbi should be added as optdepends dependency (because not everybody might want to monitor MySQL databases).
Also the user should be alerted to install Cache::Cache / Net::DNS::Resolver in the event he/she needs to use the above mentioned plugins.

Additional info:
* package version(s)
munin 2.0.6-1
munin-node 2.0.6-1

* config and/or log files etc.
Whenever I run:
# munin-node-configure --shell | sh
I got this:
# The following plugins caused errors:
# mysql_:
# Non-zero exit during autoconf (2)
# ntp_states:
# Non-zero exit during autoconf (2)
# proc:
# In family 'auto' but doesn't have 'autoconf' capability

* Looking closer *
For mysql_:
/home/msx # /usr/lib/munin/plugins/mysql_ suggest
Can't locate DBI.pm in @INC (@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/lib/munin/plugins/mysql_ line 134.
BEGIN failed--compilation aborted at /usr/lib/munin/plugins/mysql_ line 134.
/home/msx # pacman -S perl-dbi
...
(1/1) installing perl-dbi [---------------------------------] 100%
/home/msx # /usr/lib/munin/plugins/mysql_ suggest
Missing dependency Cache::Cache at /usr/lib/munin/plugins/mysql_ line 729.

For ntp_states:
/usr/lib/munin/plugins # /usr/lib/munin/plugins/ntp_states suggest
Can't locate object method "new" via package "Net::DNS::Resolver" (perhaps you forgot to load "Net::DNS::Resolver"?) at /usr/lib/munin/plugins/ntp_states line 70.

Steps to reproduce:
1. pacman -S munin munin-node
2. follow wiki instructions: https://wiki.archlinux.org/index.php/Munin
3. munin-node-configure --shell | sh will produce the above mentioned output.

Link to the mailing list archive: http://mailman.archlinux.org/pipermail/arch-general/2012-September/031014.html

Last, I suggest to keep this bug with severity "medium" because while the bug I report here isn't a show-stopper for everyone who don't need these plugins this issue indeed *is* a show-stopper for those who need them and, like me, must go hunt the answer.

Live long and prosper.