Merge branch 'master' into Gtk

diff --cc tests/check.scm
index 3d8b9a4e91a8af6c5ee9adc149ea79f261bf8774,37905c555efd85154894e665fffc6f959a30d733..e21befcd8fabb1e084f3e2b39e0f98796e300b2b
--- 1/tests/check.scm
--- 2/tests/check.scm
+++ b/tests/check.scm
@@@ -49,10 -49,10 +49,11 @@@ USA
      "runtime/test-integer-bits"
      "runtime/test-thread-queue"
      "runtime/test-process"
+     "runtime/test-readwrite"
      "runtime/test-regsexp"
      ("runtime/test-wttree" (runtime wt-tree))
 -    ;;"ffi/test-ffi"
 +    "ffi/test-ffi.scm"
 +    "gtk/test-gtk.scm"
      ))
  
  (with-working-directory-pathname