Tweak @INC so that the ordering is:
	site (5.8.8)
	vendor (all)
	core (5.8.8)
	obsolete (pre-5.8.8-9) vendor builds

The rationale being that an admin (via site), or module packager (vendor) can
chose to shadow core modules when there is a newer version than is included in
core.

Thanks to Charles Mauch (xterminus) for his work on the initial patch.

--- perl.c.orig	2006-01-31 07:34:47.000000000 -0500
+++ perl.c	2007-10-31 22:46:56.000000000 -0400
@@ -4771,44 +4771,12 @@
 
 /* Use the ~-expanded versions of APPLLIB (undocumented),
     ARCHLIB PRIVLIB SITEARCH SITELIB VENDORARCH and VENDORLIB
+    Arch Linux: SITEARCH SITELIB VENDORARCH VENDORLIB ARCHLIB PRIVLIB OTHER
 */
 #ifdef APPLLIB_EXP
     incpush(APPLLIB_EXP, TRUE, TRUE, TRUE);
 #endif
 
-#ifdef ARCHLIB_EXP
-    incpush(ARCHLIB_EXP, FALSE, FALSE, TRUE);
-#endif
-#ifdef MACOS_TRADITIONAL
-    {
-	Stat_t tmpstatbuf;
-    	SV * privdir = NEWSV(55, 0);
-	char * macperl = PerlEnv_getenv("MACPERL");
-	
-	if (!macperl)
-	    macperl = "";
-	
-	Perl_sv_setpvf(aTHX_ privdir, "%slib:", macperl);
-	if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode))
-	    incpush(SvPVX(privdir), TRUE, FALSE, TRUE);
-	Perl_sv_setpvf(aTHX_ privdir, "%ssite_perl:", macperl);
-	if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode))
-	    incpush(SvPVX(privdir), TRUE, FALSE, TRUE);
-	
-   	SvREFCNT_dec(privdir);
-    }
-    if (!PL_tainting)
-	incpush(":", FALSE, FALSE, TRUE);
-#else
-#ifndef PRIVLIB_EXP
-#  define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
-#endif
-#if defined(WIN32)
-    incpush(PRIVLIB_EXP, TRUE, FALSE, TRUE);
-#else
-    incpush(PRIVLIB_EXP, FALSE, FALSE, TRUE);
-#endif
-
 #ifdef SITEARCH_EXP
     /* sitearch is always relative to sitelib on Windows for
      * DLL-based path intuition to work correctly */
@@ -4850,6 +4818,40 @@
     incpush(PERL_VENDORLIB_STEM, FALSE, TRUE, TRUE);
 #endif
 
+/* Arch Linux: core libs after site and vendor libs. */
+#ifdef ARCHLIB_EXP
+    incpush(ARCHLIB_EXP, FALSE, FALSE, TRUE);
+#endif
+#ifdef MACOS_TRADITIONAL
+    {
+	Stat_t tmpstatbuf;
+    	SV * privdir = NEWSV(55, 0);
+	char * macperl = PerlEnv_getenv("MACPERL");
+	
+	if (!macperl)
+	    macperl = "";
+	
+	Perl_sv_setpvf(aTHX_ privdir, "%slib:", macperl);
+	if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode))
+	    incpush(SvPVX(privdir), TRUE, FALSE, TRUE);
+	Perl_sv_setpvf(aTHX_ privdir, "%ssite_perl:", macperl);
+	if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode))
+	    incpush(SvPVX(privdir), TRUE, FALSE, TRUE);
+	
+   	SvREFCNT_dec(privdir);
+    }
+    if (!PL_tainting)
+	incpush(":", FALSE, FALSE, TRUE);
+#else
+#ifndef PRIVLIB_EXP
+#  define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
+#endif
+#if defined(WIN32)
+    incpush(PRIVLIB_EXP, TRUE, FALSE, TRUE);
+#else
+    incpush(PRIVLIB_EXP, FALSE, FALSE, TRUE);
+#endif
+
 #ifdef PERL_OTHERLIBDIRS
     incpush(PERL_OTHERLIBDIRS, TRUE, TRUE, TRUE);
 #endif