We configure Postgres with --disable-rpath because for the most part we want to leave it to ldconfig to determine where libraries are. However, for some reason the Perl package puts libperl.so in a nonstandard place and doesn't add that place to the ldconfig search path. I think this is a Perl packaging bug, myself, but apparently it's not going to change. So work around it by adding an rpath spec to plperl.so (only). Per bug #162198. diff -Naur postgresql-8.2.0.orig/src/pl/plperl/GNUmakefile postgresql-8.2.0/src/pl/plperl/GNUmakefile --- postgresql-8.2.0.orig/src/pl/plperl/GNUmakefile 2006-07-20 20:24:04.000000000 -0400 +++ postgresql-8.2.0/src/pl/plperl/GNUmakefile 2006-12-04 20:00:56.000000000 -0500 @@ -36,6 +36,9 @@ SHLIB_LINK = $(perl_embed_ldflags) $(BE_DLLLIBS) +# Force rpath to be used even though we disable it everywhere else +SHLIB_LINK += $(rpath) + REGRESS_OPTS = --dbname=$(PL_TESTDB) --load-language=plperl REGRESS = plperl plperl_trigger plperl_shared plperl_elog # where to find psql for running the tests