misc: consolidate <config.h> inclusion

backend_common.h

@@ -37,6 +37,11 @@
 
 #include <libusb.h>
 
+/* For Integration into gutenprint */
+#if defined(HAVE_CONFIG_H)
+#include <config.h>
+#endif
+
 #ifndef __BACKEND_COMMON_H
 #define __BACKEND_COMMON_H
 

backend_mitsu70x.c

@@ -29,11 +29,6 @@
 #include "backend_common.h"
 #include "backend_mitsu.h"
 
-/* For Integration into gutenprint */
-#if defined(HAVE_CONFIG_H)
-#include <config.h>
-#endif
-
 #define USB_VID_MITSU       0x06D3
 #define USB_PID_MITSU_D70X  0x3B30
 #define USB_PID_MITSU_K60   0x3B31

backend_mitsu9550.c

@@ -29,11 +29,6 @@
 #include "backend_common.h"
 #include "backend_mitsu.h"
 
-/* For Integration into gutenprint */
-#if defined(HAVE_CONFIG_H)
-#include <config.h>
-#endif
-
 #define MITSU_M98xx_LAMINATE_FILE  "M98MATTE.raw"
 #define MITSU_M98xx_DATATABLE_FILE "M98TABLE.dat"
 #define MITSU_M98xx_LUT_FILE       "M98XXL01.lut"

backend_shinkos6145.c

@@ -34,7 +34,6 @@
  *
  */
 
-
 #define BACKEND shinkos6145_backend
 
 #include "backend_common.h"
@@ -42,11 +41,6 @@
 
 #include <time.h>
 
-/* For Integration into gutenprint */
-#if defined(HAVE_CONFIG_H)
-#include <config.h>
-#endif
-
 #ifndef WITH_DYNAMIC
 #warning "No dynamic loading support!"
 #endif