hw/i2c/smbus_ich9.c calls range_covers_byte(). Include "qemu/range.h"
which declares it.

This fixes (when modifying unrelated headers):

  hw/i2c/smbus_ich9.c:66:9: error: implicit declaration of function 'range_covers_byte' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
      if (range_covers_byte(address, len, ICH9_SMB_HOSTC)) {
          ^

Acked-by: John Snow <jsnow@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 hw/i2c/smbus_ich9.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/i2c/smbus_ich9.c b/hw/i2c/smbus_ich9.c
index fd50fb851a..48f1ff4191 100644
--- a/hw/i2c/smbus_ich9.c
+++ b/hw/i2c/smbus_ich9.c
@@ -21,6 +21,7 @@
  */
 
 #include "qemu/osdep.h"
+#include "qemu/range.h"
 #include "hw/i2c/pm_smbus.h"
 #include "hw/pci/pci.h"
 #include "migration/vmstate.h"
-- 
2.21.1