Index: gnulib-tool
===================================================================
RCS file: /cvsroot/gnulib/gnulib/gnulib-tool,v
retrieving revision 1.196
diff -u -r1.196 gnulib-tool
--- gnulib-tool	14 Nov 2006 09:37:20 -0000	1.196
+++ gnulib-tool	14 Nov 2006 12:01:11 -0000
@@ -2254,6 +2254,32 @@
   testsbase=gltests
   macro_prefix=gl
 
+  # Check module license
+  for imported_module in $modules; do 
+    license=`func_get_license $imported_module`
+    if test "$license" = "LGPL"; then
+      lgpl=true
+    else
+      lgpl=
+    fi
+
+    # Get dependencies for the current module.
+    modules=$imported_module
+    func_modules_transitive_closure
+
+    # Verify that the licenses of modules are compatible.
+    if test -n "$lgpl"; then
+      for module in $modules; do
+        license=`func_get_license $module`
+        case $license in
+          LGPL | 'GPLed build tool') ;;
+          'public domain' | 'unlimited' | 'unmodifiable license text') ;;
+        *) func_fatal_error "warning: module $imported_module depend on another module with incompatible license: $module" ;;
+        esac
+      done
+    fi
+  done
+
   # Determine final module list.
   func_modules_transitive_closure
   echo "Module list with included dependencies:"