Edit: Ups...apparently imake isn't installed correctly...aarg!
Afterwards the installation of itools, which contains imake, i tried to install dicom3tools from david clunie according this page: README from itools

*checking the unzipped directory for other readme's and requirements
*checked, if PERLPATH is correct, point to /usr/local/bin/perl
in the directory /usr/local/bin/ exists two different perl-files: "perl" and "perl5.8.8", default is perl, correct?!
* "make World" for Building Distribution
* "make install" for Installing Distribution

But when i used imake to install dicom3tools per command imake -I./config -DInst ...., he cannot found imake...
Why does this failed?!

Best regards and thanks for your endurance

perl usualy is a (hard or symbolic) link to perl5.8.8. What is strange is the path where perl is installed. By default it's installed in /usr/bin
If imake was installed with problems but it cannot be found, then it's more likely not in the PATH. If it's installed in /usr/local/bin, then before building the s/w you want, you should extend the PATH running:
Anyways I suggest you to open another thread for this imake problem, since it has nothing to do with the initial problem about openldap.

Regards