[Dovecot] Make install error

[kengheng]

Hi, I'm recompiling dovecot 2.2.0/2.2.1 with error below during make 
install:

test -z "/usr/local/dovecot/lib/dovecot/auth" || /usr/bin/mkdir -p 
"/usr/local/dovecot/lib/dovecot/auth"
/usr/bin/mkdir: cannot create directory 
‘/usr/local/dovecot/lib/dovecot/auth’: File exists
make[3]: *** [install-auth_moduleLTLIBRARIES] Error 1
make[3]: Leaving directory `/usr/local/src/dovecot-2.2.1/src/auth'
make[2]: *** [install-am] Error 2
make[2]: Leaving directory `/usr/local/src/dovecot-2.2.1/src/auth'
make[1]: *** [install-recursive] Error 1
make[1]: Leaving directory `/usr/local/src/dovecot-2.2.1/src'
make: *** [install-recursive] Error 1


The target Svr OS: OpenSuse 12.2 x86 and installed success for 
qmail/vpopmail. The configuration for dovecot as below:
./configure \
--prefix=/usr/local/dovecot \
--with-vpopmail \
--with-docs \
--with-ssl \
--without-shadow \
--without-pam \
--without-ldap \
--without-pgsql \
--without-sql \
--without-mysql \
--without-sqlite

Thanks,
KH. Chan