./configure
checking for gcc... gcc
checking for C compiler default output... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ANSI C... none needed
checking for gawk... gawk
checking for a BSD-compatible install... /usr/bin/install -c
checking whether ln -s works... yes
checking whether make sets $(MAKE)... yes
checking for perl5... no
checking for perl... /usr/bin/perl
checking for sysconftool...... ././sysconftool
checking for env... /bin/env
checking whether build environment is sane... yes
checking for style of include used by make... GNU
checking dependency style of gcc... gcc3
configure: WARNING: === Do not compile Courier-IMAP as root. Compile
configure: WARNING: === Courier-IMAP as a non-root user then su to
configure: WARNING: === root before running make install. You must now
configure: WARNING: === remove this entire directory and then extract the
configure: WARNING: === source code from the tarball as a non-root user
configure: WARNING: === and rerun the configure script. If you have read
configure: WARNING: === the INSTALL file you should have known this. So
configure: WARNING: === you better read INSTALL again.
configure: error: aborted.