Hello I have this problem when compiling postfix 2.9.1 on Ubuntu 12.04 make: *** [maildir.o] Error 1 make: Leaving directory `/usr/src/postfix-2.9.1/src/smtpd' make[1]: *** [update] Error 1 make[1]: Leaving directory `/usr/src/postfix-2.9.1' make: *** [build] Error 2 dpkg-buildpackage: error: debian/rules build gave error exit status 2 please help to solve a problem....