I\'m building OpenLDAP on a RHEL 5; I used instructions found at http://www.linux.com/archive/feature/113607.
All went well, until running \'./configure\' for OpenLDAP -
Seems you are using tarball installation, first you should install Berkeley DB. You can find it from oracle website at Oracle Berkeley DB Downloads. Compile and install it.
cd db-4.7.25.NC
../dist/configure
make
make install
cd /usr/local/BerkeleyDB.4.7/
This will install BerkeleyDB. Now you need to provide the location to successfully compile OpenLDAP.
export CPPFLAGS="-I/usr/local/BerkeleyDB.4.7/include"
export LDFLAGS="-L/usr/local/BerkeleyDB.4.7/lib -Wl,-R,/usr/local/BerkeleyDB.4.7/lib -Wl,--enable-new-dtags"
# Build OpenLDAP
...
If you don't set RPATH then you should add LD_LIBRARY_PATH to /etc/profile.
export LD_LIBRARY_PATH="/usr/local/BerkeleyDB.4.7/lib"
After this compile OpenLDAP, let me know if you face any issue.