meson: Detect CL version

Different DDK might have different CL versions.

Change-Id: I7384a0f653e3e774cc46a4c545a5697986a31e27
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>

scripts/fixup_cl.sh

@@ -0,0 +1,19 @@
+#!/bin/sh -e
+
+[ $# -lt 2 ] && {
+	echo "usage: $0 <path of include> <cl version>"
+	exit 1
+}
+
+HEADER="${MESON_INSTALL_DESTDIR_PREFIX:-/usr}/$1/CL/cl_version.h"
+
+if [ -f "$HEADER" ]; then
+	VER="$2"
+	TARGET_VER=$(echo "$VER * 100" | bc | sed "s/\.0$//")
+
+	sed -i -e "s/\(Defaulting to \).* ([^)]*/\1$TARGET_VER (OpenCL $VER/" \
+		-e "s/\(^#define CL_TARGET_OPENCL_VERSION \).*/\1$TARGET_VER/" \
+		"$HEADER"
+fi
+
+exit 0