Don't take the address of a void object.

GCC 4.5 warns about "extern void _end; &end;".
Use char[] instead, as that also doesn't fall foul
of a target's .sdata optimizations.

Signed-off-by: Richard Henderson <rth@twiddle.net>

1 files changed, 4 insertions, 4 deletions

diff --git a/sysdeps/unix/sysv/linux/dl-sysdep.c b/sysdeps/unix/sysv/linux/dl-sysdep.c
index 08ae9aa86d..34e8808928 100644
--- a/sysdeps/unix/sysv/linux/dl-sysdep.c
+++ b/sysdeps/unix/sysv/linux/dl-sysdep.c
@@ -47,12 +47,12 @@ frob_brk (void)
      Later Linux kernels have changed this behavior so that the initial
      break value is rounded up to the page boundary before we start.  */
 
-  extern void *__curbrk attribute_hidden;
-  extern void _end attribute_hidden;
-  void *const endpage = (void *) 0 + (((__curbrk - (void *) 0)
+  extern char *__curbrk attribute_hidden;
+  extern char _end[] attribute_hidden;
+  char *const endpage = (void *) 0 + (((__curbrk - (char *) 0)
 				       + GLRO(dl_pagesize) - 1)
 				      & -GLRO(dl_pagesize));
-  if (__builtin_expect (__curbrk >= &_end && __curbrk < endpage, 0))
+  if (__builtin_expect (__curbrk >= _end && __curbrk < endpage, 0))
     __brk (endpage);
 #endif
 }