[root@silver tom]# pacman -S systemd
resolving dependencies...
looking for inter-conflicts...
:: systemd and eudev-git are in conflict (udev). Remove eudev-git? [y/N] ^C
Interrupt signal received

[root@silver tom]# pacman -S libsystemd
resolving dependencies...
looking for inter-conflicts...

Packages (1): libsystemd-216-3

Total Download Size:    0.11 MiB
Total Installed Size:   0.43 MiB

:: Proceed with installation? [Y/n]
:: Retrieving packages ...
 libsystemd-216-3-x86_64       112.8 KiB  2.12M/s 00:00 [------------------------------] 100%
(1/1) checking keys in keyring                          [------------------------------] 100%
(1/1) checking package integrity                        [------------------------------] 100%
(1/1) loading package files                             [------------------------------] 100%
(1/1) checking for file conflicts                       [------------------------------] 100%
error: failed to commit transaction (conflicting files)
libsystemd: /usr/lib/libgudev-1.0.so exists in filesystem
libsystemd: /usr/lib/libgudev-1.0.so.0 exists in filesystem
libsystemd: /usr/lib/libgudev-1.0.so.0.2.0 exists in filesystem
libsystemd: /usr/lib/libudev.so exists in filesystem
libsystemd: /usr/lib/libudev.so.1 exists in filesystem
libsystemd: /usr/lib/libudev.so.1.6.0 exists in filesystem
Errors occurred, no packages were upgraded.