diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 23dc36f33d0..2eceb2cbdc4 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2004-12-05  Andrew Pinski  <pinskia@physics.uc.edu>
+
+	* mklibgcc.in (vis_hide): Add the prototype for the test.
+
 2004-12-05  Roger Sayle  <roger@eyesopen.com>
 
 	* c-typeck.c (c_finish_loop): Improve initial implementations
diff --git a/gcc/mklibgcc.in b/gcc/mklibgcc.in
index 535420b9101..d103f364271 100644
--- a/gcc/mklibgcc.in
+++ b/gcc/mklibgcc.in
@@ -99,7 +99,7 @@ if [ "$SHLIB_LINK" ]; then
   # overriding that with #pragmas.  The dance with @ is to prevent
   # echo from seeing anything it might take for an option.
   echo "vis_hide := \$(strip \$(subst @,-,\\"
-  echo "    \$(shell if echo 'void foo(void) {}' | \\"
+  echo "    \$(shell if echo 'void foo(void); void foo(void) {}' | \\"
   echo "          $gcc_compile -fvisibility=hidden -Werror \\"
   echo "          -c -xc - -o /dev/null 2> /dev/null; \\"
   echo "          then echo @fvisibility=hidden @DHIDE_EXPORTS; \\"