diff -r 03e60e87d92a -r c31e9dc1fe3d common/autoconf/basics_windows.m4
--- a/common/autoconf/basics_windows.m4	Wed May 29 14:01:04 2013 +0200
+++ b/common/autoconf/basics_windows.m4	Fri May 31 14:07:42 2013 +0200
@@ -300,7 +300,7 @@
 # Setup basic configuration paths, and platform-specific stuff related to PATHs.
 AC_DEFUN([BASIC_CHECK_PATHS_WINDOWS],
 [
-  SRC_ROOT_LENGTH=`$THEPWDCMD|$WC -m`
+  SRC_ROOT_LENGTH=`$THEPWDCMD -L|$WC -m`
   if test $SRC_ROOT_LENGTH -gt 100; then
       AC_MSG_ERROR([Your base path is too long. It is $SRC_ROOT_LENGTH characters long, but only 100 is supported])
   fi