I'm still getting this message, and I think I've found why.

You correctly try to detect the crypto lib before the ssl lib of OpenSSL, but when trying to compile a test program to test if the IMAP library was compiled with SSL support, you link with the crypto lib before the ssl lib. These libraries should be reversed (the ssl lib needs symbols that are defined in the crypto lib).

I tried to correct this, and still got the same error. I also found that you must link with the c-client library before the ssl and crypto libs (the config.log tries to run this:

gcc -o conftest -g -O2  -DLINUX=20 -DDEV_RANDOM=/dev/random -DMOD_SSL=208104 -DUSE_HSREGEX -DEAPI -DUSE_EXPAT  -Wl,
-rpath,/usr/X11/lib -L/usr/X11/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib conftest.c -lpam -lgmp -lgd -lX11 -lXpm -ljpeg -lgdbm -lz -lcrypt -lssl -lcrypto -lresolv -lm -ldl -lnsl  -lresolv -lc-client 1>&5
and fails, for the same reason (the c-client lib needs some symbols that are defined in the ssl lib). I added -lssl and -lcrypto after the -lc-client, and it works.

I don't know if this has been fixed in the CVS version.