Thanks, Quanah and Dieter. I was able successfully link TLS/SSL libraries with slapd after installing openssl-devel package. Thanks for your help guys.<br />
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But I do have one query: when I used the below command, eventhough configure found the openssl libraries, it gave the warning as "Checking gnutls.h ... no"<br />
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Configure: warning: Could not locate TLS/SSL libraries.<br />
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Then, when I removed the CPPFLGAS and LDDFLAGS linking openssl libraries, then all worked fine.<br />
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Is there any reason, why the openldap configure refers the gnutls ??<br />
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env CPPFLAGS="-I/usr/local/ssl/include -I/usr/local/BerkeleyDB.4.8/include" LDFLAGS="-L/usr/local/lib -L/usr/local/BerkeleyDB.4.8/lib -R/usr/local/BerkeleyDB.4.8/lib -L/usr/local/ssl/lib" LD_LIBRARY_PATH="/usr/local/BerkeleyDB.4.8/lib" ./configure --with-tls<br />
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> Did you actually install the openssl-dev RPM package? You must have  > the headers and linking libraries on the system so that OpenLDAP can > actually link against it. And yes, you'll have to rebuild OpenLDAP.  > I would suggest just running "configure" until you see that it <br />
> successfully found the TLS/SSL headers/libraries.<br />
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