Index: libtool.m4
===================================================================
--- libtool.m4	(revision 122836)
+++ libtool.m4	(working copy)
@@ -663,7 +663,14 @@
   ;;
 
 cygwin* | mingw* |pw32*)
-  lt_cv_deplibs_check_method='file_magic file format pei*-i386(.*architecture: i386)?'
+  case $host in
+  x86_64-*-*)
+  	lt_cv_deplibs_check_method='file_magic file format pe*-i386(.*architecture: i386)?'
+  	;;
+  *)
+  	lt_cv_deplibs_check_method='file_magic file format pei*-i386(.*architecture: i386)?'
+  	;;
+  esac
   lt_cv_file_magic_cmd='$OBJDUMP -f'
   ;;