* libltdl/m4/libtool.m4 (_LT_CHECK_MAGIC_METHOD),
	libltdl/config/ltmain.m4sh (func_mode_link): On Windows,
	find potential libs regardless of file name case.

Index: libtool/libltdl/config/ltmain.m4sh
===================================================================
--- libtool.orig/libltdl/config/ltmain.m4sh
+++ libtool/libltdl/config/ltmain.m4sh
@@ -5651,8 +5651,13 @@ EOF
 	      fi
 	      if test -n "$a_deplib" ; then
 		libname=`eval "\\$ECHO \"$libname_spec\""`
+		if test -n "$file_magic_glob"; then
+		  libnameglob=`$ECHO "X$libname" | $Xsed -e $file_magic_glob`
+		else
+		  libnameglob=$libname
+		fi
 		for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
-		  potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
+		  potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null`
 		  for potent_lib in $potential_libs; do
 		      # Follow soft links.
 		      if ls -lLd "$potent_lib" 2>/dev/null |
Index: libtool/libltdl/m4/libtool.m4
===================================================================
--- libtool.orig/libltdl/m4/libtool.m4
+++ libtool/libltdl/m4/libtool.m4
@@ -3054,6 +3054,16 @@ tpf*)
   ;;
 esac
 ])
+
+case $host_os in
+cygwin* | mingw* | pw32*)
+  file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[[\1]]\/[[\1]]\/g;/g"`
+  ;;
+*)
+  file_magic_glob=
+  ;;
+esac
+
 file_magic_cmd=$lt_cv_file_magic_cmd
 deplibs_check_method=$lt_cv_deplibs_check_method
 test -z "$deplibs_check_method" && deplibs_check_method=unknown
@@ -3062,6 +3072,8 @@ _LT_DECL([], [deplibs_check_method], [1]
     [Method to check whether dependent libraries are shared objects])
 _LT_DECL([], [file_magic_cmd], [1],
     [Command to use when deplibs_check_method == "file_magic"])
+_LT_DECL([], [file_magic_glob], [1],
+    [How to find potential files when deplibs_check_method == "file_magic"])
 ])# _LT_CHECK_MAGIC_METHOD