* config/ltmain.m4sh (func_source): New function.
	(func_mode_execute, func_mode_install, func_mode_link): Use it.
	Do not append a dot to a file name to source, it breaks on
	cygwin managed mounts and is not necessary anywhere.
	Reported by Eric Blake <address@hidden>.

Index: config/ltmain.m4sh
===================================================================
RCS file: /cvsroot/libtool/libtool/config/ltmain.m4sh,v
retrieving revision 1.83
diff -u -r1.83 ltmain.m4sh
--- config/ltmain.m4sh	12 Aug 2005 20:34:19 -0000	1.83
+++ config/ltmain.m4sh	12 Aug 2005 20:56:52 -0000
@@ -643,6 +643,22 @@
 }
 
 
+# func_source file
+# Source FILE, adding directory component if necessary.
+# Note that it is not necessary on cygwin/mingw to append a dot to
+# FILE even if both FILE and FILE.exe exist: automatic-append-.exe
+# behavior happens only for exec(3), not for open(2)!  Also, sourcing
+# `FILE.' does not work on cygwin managed mounts.
+func_source ()
+{
+    $opt_debug
+    case $1 in
+    */* | *\\*)	. "$1" ;;
+    *)		. "./$1" ;;
+    esac
+}
+
+
 # Generated shell functions inserted here.
 
 
@@ -1502,12 +1518,7 @@
 	# Read the libtool library.
 	dlname=
 	library_names=
-
-	# If there is no directory component, then add one.
-	case $file in
-	*/* | *\\*) . $file ;;
-	*) . ./$file ;;
-	esac
+	func_source "$file"
 
 	# Skip this library if it cannot be dlopened.
 	if test -z "$dlname"; then
@@ -1564,11 +1575,7 @@
       *)
 	# Do a test to see if this is really a libtool program.
 	if func_ltwrapper_p "$file"; then
-	  # If there is no directory component, then add one.
-	  case $file in
-	  */* | *\\*) . $file ;;
-	  *) . ./$file ;;
-	  esac
+	  func_source "$file"
 
 	  # Transform arg to wrapped name.
 	  file="$progdir/$program"
@@ -1831,11 +1838,7 @@
 	library_names=
 	old_library=
 	relink_command=
-	# If there is no directory component, then add one.
-	case $file in
-	*/* | *\\*) . $file ;;
-	*) . ./$file ;;
-	esac
+	func_source "$file"
 
 	# Add the libdir to current_libdirs if it is the destination.
 	if test "X$destdir" = "X$libdir"; then
@@ -2007,18 +2010,7 @@
 	  notinst_deplibs=
 	  relink_command=
 
-	  # To insure that "foo" is sourced, and not "foo.exe",
-	  # finese the cygwin/MSYS system by explicitly sourcing "foo."
-	  # which disallows the automatic-append-.exe behavior.
-	  case $build in
-	  *cygwin* | *mingw*) wrapperdot=${wrapper}. ;;
-	  *) wrapperdot=${wrapper} ;;
-	  esac
-	  # If there is no directory component, then add one.
-	  case $file in
-	  */* | *\\*) . ${wrapperdot} ;;
-	  *) . ./${wrapperdot} ;;
-	  esac
+	  func_source "$wrapper"
 
 	  # Check the variables that should have been set.
 	  test -z "$generated_by_libtool_version" && \
@@ -2029,11 +2021,7 @@
 	    # Check to see that each library is installed.
 	    libdir=
 	    if test -f "$lib"; then
-	      # If there is no directory component, then add one.
-	      case $lib in
-	      */* | *\\*) . $lib ;;
-	      *) . ./$lib ;;
-	      esac
+	      func_source "$lib"
 	    fi
 	    libfile="$libdir/"`$ECHO "X$lib" | $Xsed -e 's%^.*/%%g'` ### testsuite: skip nested quoting test
 	    if test -n "$libdir" && test ! -f "$libfile"; then
@@ -2043,18 +2031,7 @@
 	  done
 
 	  relink_command=
-	  # To insure that "foo" is sourced, and not "foo.exe",
-	  # finese the cygwin/MSYS system by explicitly sourcing "foo."
-	  # which disallows the automatic-append-.exe behavior.
-	  case $build in
-	  *cygwin* | *mingw*) wrapperdot=${wrapper}. ;;
-	  *) wrapperdot=${wrapper} ;;
-	  esac
-	  # If there is no directory component, then add one.
-	  case $file in
-	  */* | *\\*) . ${wrapperdot} ;;
-	  *) . ./${wrapperdot} ;;
-	  esac
+	  func_source "$wrapper"
 
 	  outputname=
 	  if test "$fast_install" = no && test -n "$relink_command"; then
@@ -2359,11 +2336,7 @@
 		non_pic_object=
 
 		# Read the .lo file
-		# If there is no directory component, then add one.
-		case $arg in
-		*/* | *\\*) . $arg ;;
-		*) . ./$arg ;;
-		esac
+		func_source "$arg"
 
 		if test -z "$pic_object" ||
 		   test -z "$non_pic_object" ||
@@ -2868,11 +2841,7 @@
 	  non_pic_object=
 
 	  # Read the .lo file
-	  # If there is no directory component, then add one.
-	  case $arg in
-	  */* | *\\*) . $arg ;;
-	  *) . ./$arg ;;
-	  esac
+	  func_source "$arg"
 
 	  if test -z "$pic_object" ||
 	     test -z "$non_pic_object" ||
@@ -3119,8 +3088,7 @@
 	  # Ignore non-libtool-libs
 	  dependency_libs=
 	  case $lib in
-	  *[[\\/]]*.la) . $lib   ;;
-	  *.la)	      . ./$lib ;;
+	  *.la)	func_source "$lib" ;;
 	  esac
 
 	  # Collect preopened libtool deplibs, except any this library
@@ -3200,10 +3168,7 @@
 		if func_lalib_p "$lib"; then
 		  library_names=
 		  old_library=
-		  case $lib in
-		  */* | *\\*) . $lib ;;
-		  *) . ./$lib ;;
-		  esac
+		  func_source "$lib"
 		  for l in $old_library $library_names; do
 		    ll="$l"
 		  done
@@ -3390,10 +3355,7 @@
 
 
 	# Read the .la file
-	case $lib in
-	*/* | *\\*) . $lib ;;
-	*) . ./$lib ;;
-	esac
+	func_source "$lib"
 
 	case $host in
 	*-*-darwin*)