2 files changed, 6 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 44b8e168031..a4c985b1a0c 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,7 @@
+2011-09-08  Juanma Barranquero  <lekktu@gmail.com>
+
+        * emacs.c (my_heap_start): #ifdef to avoid warnings when unused.
+
 2011-09-07  Eli Zaretskii  <eliz@gnu.org>
 
         * xdisp.c (move_it_in_display_line_to): Call RESTORE_IT on ppos_it
diff --git a/src/emacs.c b/src/emacs.c
index 57a52a0c48f..c766523b1c3 100644
--- a/src/emacs.c
+++ b/src/emacs.c
@@ -174,8 +174,10 @@ int display_arg;
    Tells GC how to save a copy of the stack.  */
 char *stack_bottom;
 
+#if defined (DOUG_LEA_MALLOC) || defined (GNU_LINUX)
 /* The address where the heap starts (from the first sbrk (0) call).  */
 static void *my_heap_start;
+#endif
 
 #ifdef GNU_LINUX
 /* The gap between BSS end and heap start as far as we can tell.  */