akurei@joel: ~ $ yaourt -Syu
:: Synchronizing package databases...
 core is up to date
 extra is up to date
 community is up to date
 multilib is up to date
 Foreign packages: \ 39 / 39

==> Package upgrade only (new release):
extra/gc              7.1-1      1 -> 2
extra/lm_sensors      3.3.0-2    2 -> 3

==> Software upgrade (new version) :
core/kernel26         2.6.38.5-1 -> 2.6.38.6-1
core/kernel26-docs    2.6.38.5-1 -> 2.6.38.6-1
core/kernel26-headers 2.6.38.5-1 -> 2.6.38.6-1
extra/apr             1.4.2-1    -> 1.4.4-1
extra/apr-util        1.3.10-2   -> 1.3.11-1

==> Continue upgrade ? [Y/n]
==> [V]iew package detail   [M]anually select packages
==> --------------------------------------------------
==> 
:: Starting full system upgrade...
resolving dependencies...
looking for inter-conflicts...

Targets (7): apr-1.4.4-1  apr-util-1.3.11-1  gc-7.1-2  kernel26-2.6.38.6-1  kernel26-docs-2.6.38.6-1  kernel26-headers-2.6.38.6-1  lm_sensors-3.3.0-3

Total Download Size:    0.00 MB
Total Installed Size:   113.75 MB

Proceed with installation? [Y/n] 
(7/7) checking package integrity                                                               [#######################################################] 100%
(7/7) checking for file conflicts                                                              [#######################################################] 100%
error: failed to commit transaction (conflicting files)
gc: /usr/share/man/man1/gc.1.gz exists in filesystem
Errors occurred, no packages were upgraded.
yaourt -Syu  5,14s user 0,23s system 36% cpu 14,904 total
akurei@joel: ~ $ yaourt -Qo /usr/share/man/man1/gc.1.gz
/usr/share/man/man1/gc.1.gz is owned by graphviz 2.26.3-3