configure: error: Required GnuTLS library not found

yum -y install gutls 

yum install gnutls-devel

yum install gnutls-*

--without-openssl 

configure: error: Required GnuTLS library not found

ERROR: OpenSSL does not support multiple server certificates. Ignoring addional cert= parameters

./configure --prefix=/home/squid --with-gnutls=/usr/include/gnutls   --enable-ssl-crtd  --with-openssl