On May 24, 2017, at 1:58 PM, hw <hw at gc-24.de> wrote: > > It seems that lighttpd uses the perl version that is assigned in > the configuration This is one of the advantages of Plack vs mod_perl, by the way: decoupling the Perl version from the web server version. > while ignoring the LIBRARY_PATH variable set with mod_setenv Are you certain you don’t mean LD_LIBRARY_PATH here? https://stackoverflow.com/questions/4250624/ > Even with a shell script as wrapper that sets and exports LIBRARY_PATH, > perl can not find the library. Trying to set LIBRARY_PATH for lighttpd > through systemd also doesnīt work. Beware that some layers of the OS actively redefine LD_LIBRARY_PATH in order to avoid security exploits. I wouldn’t be surprised if systemd did that in some cases, for good cause.