You'll need to rebuild perl (and libperl if it was built separately). Here's an example snippet of the patch used by a distro i work with:
--- perl.c.orig 2005-07-26 13:04:54.000000000 -0400
+++ perl.c 2005-07-26 13:05:05.000000000 -0400
@@ -4397,9 +4397,9 @@ S_init_perllib(pTHX)
incpush(APPLLIB_EXP, TRUE, TRUE, TRUE);
#endif
-#ifdef ARCHLIB_EXP
- incpush(ARCHLIB_EXP, FALSE, FALSE, TRUE);
-#endif
+ /* for configuration where /usr is mounted ro (CPAN::Config, Net:
+:Config) */
+ incpush("/etc/perl", FALSE, FALSE, TRUE);
+
#ifdef MACOS_TRADITIONAL
{
Stat_t tmpstatbuf;
"I have never written bad code. There are merely unanticipated features."
