Fix (unintentional) linkage of HAVE_BUTTON_DATA with HAVE_TOUCHSCREEN

Defining HAVE_BUTTON_DATA without simultaneously defining HAVE_TOUCHSCREEN
caused compile errors. (I need them separated for a scrollstrip driver.)

Change-Id: I945d3437d840035ccc0c147f8155029b403c6ec2
Reviewed-on: http://gerrit.rockbox.org/771
Reviewed-by: Amaury Pouly <amaury.pouly@gmail.com>
Reviewed-by: Thomas Martitz <kugel@rockbox.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/firmware/drivers/button.c b/firmware/drivers/button.c
index 1cc95428ab..718fb6a6da 100644
--- a/firmware/drivers/button.c
+++ b/firmware/drivers/button.c
@@ -87,13 +87,13 @@ static bool phones_present = false;
 
 #ifdef HAVE_BUTTON_DATA
 static int button_read(int *data);
+static int lastdata = 0;
 #else
 static int button_read(void);
 #endif
 
 #ifdef HAVE_TOUCHSCREEN
 static int last_touchscreen_touch;
-static int lastdata = 0;
 #endif    
 #if defined(HAVE_HEADPHONE_DETECTION)
 static struct timeout hp_detect_timeout; /* Debouncer for headphone plug/unplug */