Configure: suppress $multilib with non-system $prefix.
PR: 2307
diff --git a/Configure b/Configure
index 698213b..6b5b6c2 100755
--- a/Configure
+++ b/Configure
@@ -1098,6 +1098,12 @@
my $arflags = $fields[$idx_arflags];
my $multilib = $fields[$idx_multilib];
+# if $prefix/lib$multilib is not an existing directory, then
+# assume that it's not searched by linker automatically, in
+# which case adding $multilib suffix causes more grief than
+# we're ready to tolerate, so don't...
+$multilib="" if !-d "$prefix/lib$multilib";
+
$libdir="lib$multilib" if $libdir eq "";
$cflags = "$cflags$exp_cflags";
