apply commit d0a3570300812bc81888e7a7eadb9311621dc9a7 to cmake side too.

(cherry-picked from commit 5b2884cb0203cc63bf9753f8b55ea4c6c6f19cfb)

CMakeLists.txt

@@ -1380,6 +1380,7 @@ elseif(UNIX AND NOT APPLE AND NOT RISCOS AND NOT HAIKU)
       check_c_source_compiles("
           #include <linux/kd.h>
           #include <linux/keyboard.h>
+          #include <sys/ioctl.h>
           int main(int argc, char **argv) {
               struct kbentry kbe;
               kbe.kb_table = KG_CTRL;