[Bug 2564] New: Wineinstall broken on systems with root user disabled

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=2564

Summary: Wineinstall broken on systems with root user disabled
           Product: Wine
           Version: CVS
          Platform: Other
        OS/Version: other
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: wine-tools
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

I run Ubuntu, which disables the root user and relies on sudo instead. 
Wineinstall's script makes use of su, which presents a problem when it's not
enabled.

Wineinstall fails with this error:

Performing 'make install' as root to install binaries, enter root password
Password:
su: Authentication failure
Sorry.
Password:
su: Authentication failure
Sorry.

Either you entered an incorrect password or we failed to
run 'make install;echo /usr/local/lib>>/etc/ld.so.conf;/sbin/ldconfig' correctly.
If you didn't enter an incorrect password then please
report this error and any steps to possibly reproduce it to
http://bugs.winehq.org/