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). Alpine notes: This patch is copied from Fedora. --- a/src/pl/plperl/GNUmakefile +++ b/src/pl/plperl/GNUmakefile @@ -55,6 +55,9 @@ SHLIB_LINK = $(perl_embed_ldflags) +# Force rpath to be used even though we disable it everywhere else +SHLIB_LINK += $(rpath) + REGRESS_OPTS = --dbname=$(PL_TESTDB) REGRESS = plperl_setup plperl plperl_lc plperl_trigger plperl_shared \ plperl_elog plperl_util plperl_init plperlu plperl_array \