[Dovecot] error while compiling dovecot 2.2.9

[Luuk]

while doing 'sudo make install',
its complaining about the existance of ‘/usr/local/lib/dovecot/auth’

.....
make[3]: Entering directory `/home/luuk/source/dovecot-2.2.9/src/anvil'
  /usr/bin/mkdir -p '/usr/local/lib/dovecot'
   /bin/sh ../../libtool   --mode=install /usr/bin/install -c anvil 
'/usr/local/lib/dovecot'
libtool: install: /usr/bin/install -c .libs/anvil 
/usr/local/lib/dovecot/anvil
make[3]: Nothing to be done for `install-data-am'.
make[3]: Leaving directory `/home/luuk/source/dovecot-2.2.9/src/anvil'
make[2]: Leaving directory `/home/luuk/source/dovecot-2.2.9/src/anvil'
Making install in auth
make[2]: Entering directory `/home/luuk/source/dovecot-2.2.9/src/auth'
make[3]: Entering directory `/home/luuk/source/dovecot-2.2.9/src/auth'
  /usr/bin/mkdir -p '/usr/local/lib/dovecot'
   /bin/sh ../../libtool   --mode=install /usr/bin/install -c auth 
checkpassword-reply '/usr/local/lib/dovecot'
libtool: install: /usr/bin/install -c .libs/auth /usr/local/lib/dovecot/auth
libtool: install: /usr/bin/install -c .libs/checkpassword-reply 
/usr/local/lib/dovecot/checkpassword-reply
  /usr/bin/mkdir -p '/usr/local/lib/dovecot/auth'
/usr/bin/mkdir: cannot create directory ‘/usr/local/lib/dovecot/auth’: 
File exists
make[3]: *** [install-auth_moduleLTLIBRARIES] Error 1
make[3]: Leaving directory `/home/luuk/source/dovecot-2.2.9/src/auth'
make[2]: *** [install-am] Error 2
make[2]: Leaving directory `/home/luuk/source/dovecot-2.2.9/src/auth'
make[1]: *** [install-recursive] Error 1
make[1]: Leaving directory `/home/luuk/source/dovecot-2.2.9/src'
make: *** [install-recursive] Error 1
luuk at asus:~/source/dovecot-2.2.9>


any tips on what i did wrong?