Fix user-set path envvar confusing libtool
--- configure.orig	2009-05-12 03:41:59.000000000 +0400
+++ configure	2012-10-17 21:18:41.318049637 +0400
@@ -19894,7 +19894,7 @@
 
     cat <<_LT_EOF >> "$cfgfile"
 #! $SHELL
-
+path=
 # `$ECHO "$ofile" | sed 's%^.*/%%'` - Provide generalized library-building support services.
 # Generated automatically by $as_me ($PACKAGE$TIMESTAMP) $VERSION
 # Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`: