diff --git a/config/ChangeLog b/config/ChangeLog
index bba86988df..5fac2d0f49 100644
--- a/config/ChangeLog
+++ b/config/ChangeLog
@@ -1,3 +1,9 @@
+2005-06-14  Tom Tromey  <tromey@redhat.com>
+
+	PR libgcj/19877:
+	* no-executables.m4: Call real AC_FUNC_MMAP when cache variable
+	is set but not 'no'.
+
 2005-06-13  Zack Weinberg  <zack@codesourcery.com>
 
 	* depstand.m4, lead-dot.m4: New files.
diff --git a/config/no-executables.m4 b/config/no-executables.m4
index ca26b7112c..54e5a02428 100644
--- a/config/no-executables.m4
+++ b/config/no-executables.m4
@@ -53,7 +53,7 @@ if test x$gcc_no_link = xyes; then
     ac_cv_func_mmap_fixed_mapped=no
   fi
 fi
-if test "x${ac_cv_func_mmap_fixed_mapped+set}" != xset; then
+if test "x${ac_cv_func_mmap_fixed_mapped}" != xno; then
   m4_defn([AC_FUNC_MMAP])
 fi)