xf86-video-siliconmotion: fix compile error

package/xf86-video-siliconmotion/patches/patch-src_Makefile_in

@@ -1,6 +1,6 @@
---- xf86-video-siliconmotion-1.7.7.orig/src/Makefile.in	2012-07-17 08:28:17.000000000 +0200
-+++ xf86-video-siliconmotion-1.7.7/src/Makefile.in	2014-03-14 18:09:06.901850694 +0100
-@@ -288,7 +288,7 @@ target_alias = @target_alias@
+--- xf86-video-siliconmotion-1.7.8.orig/src/Makefile.in	2015-05-09 16:58:51.000000000 +0200
++++ xf86-video-siliconmotion-1.7.8/src/Makefile.in	2017-01-25 21:00:59.707690975 +0100
+@@ -364,7 +364,7 @@ target_alias = @target_alias@
  top_build_prefix = @top_build_prefix@
  top_builddir = @top_builddir@
  top_srcdir = @top_srcdir@

package/xf86-video-siliconmotion/patches/patch-src_compat-api_h

@@ -0,0 +1,30 @@
+--- xf86-video-siliconmotion-1.7.8.orig/src/compat-api.h	2015-05-08 13:08:17.000000000 +0200
++++ xf86-video-siliconmotion-1.7.8/src/compat-api.h	2017-01-26 02:35:36.147052952 +0100
+@@ -48,8 +48,13 @@
+ 
+ #define SCREEN_INIT_ARGS_DECL int i, ScreenPtr pScreen, int argc, char **argv
+ 
++#if ABI_VIDEODRV_VERSION >= SET_ABI_VERSION(23, 0)
++#define BLOCKHANDLER_ARGS_DECL ScreenPtr arg, pointer pTimeout
++#define BLOCKHANDLER_ARGS arg, pTimeout
++#else
+ #define BLOCKHANDLER_ARGS_DECL int arg, pointer blockData, pointer pTimeout, pointer pReadmask
+ #define BLOCKHANDLER_ARGS arg, blockData, pTimeout, pReadmask
++#endif
+ 
+ #define CLOSE_SCREEN_ARGS_DECL int scrnIndex, ScreenPtr pScreen
+ #define CLOSE_SCREEN_ARGS scrnIndex, pScreen
+@@ -75,8 +80,13 @@
+ 
+ #define SCREEN_INIT_ARGS_DECL ScreenPtr pScreen, int argc, char **argv
+ 
++#if ABI_VIDEODRV_VERSION >= SET_ABI_VERSION(23, 0)
++#define BLOCKHANDLER_ARGS_DECL ScreenPtr arg, pointer pTimeout
++#define BLOCKHANDLER_ARGS arg, pTimeout
++#else
+ #define BLOCKHANDLER_ARGS_DECL ScreenPtr arg, pointer pTimeout, pointer pReadmask
+ #define BLOCKHANDLER_ARGS arg, pTimeout, pReadmask
++#endif
+ 
+ #define CLOSE_SCREEN_ARGS_DECL ScreenPtr pScreen
+ #define CLOSE_SCREEN_ARGS pScreen