Add check for <sys/ioctl.h>.

diff --git a/dlls/winmm/joystick.c b/dlls/winmm/joystick.c
index b6aaea6..40d572c 100644
--- a/dlls/winmm/joystick.c
+++ b/dlls/winmm/joystick.c
@@ -28,7 +28,9 @@
 #include <stdlib.h>
 #include <string.h>
 #include <fcntl.h>
+#ifdef HAVE_SYS_IOCTL_H 
 #include <sys/ioctl.h>
+#endif
 
 #include "mmsystem.h"
 #include "winbase.h"
diff --git a/dlls/winmm/joystick/joystick.c b/dlls/winmm/joystick/joystick.c
index 94c8067..cd93a5f 100644
--- a/dlls/winmm/joystick/joystick.c
+++ b/dlls/winmm/joystick/joystick.c
@@ -44,7 +44,9 @@
 #include <stdlib.h>
 #include <string.h>
 #include <fcntl.h>
+#ifdef HAVE_SYS_IOCTL_H 
 #include <sys/ioctl.h>
+#endif
 #ifdef HAVE_LINUX_JOYSTICK_H
 #include <linux/joystick.h>
 #define JOYDEV "/dev/js%d"
diff --git a/files/dos_fs.c b/files/dos_fs.c
index 7170154..3c1884b 100644
--- a/files/dos_fs.c
+++ b/files/dos_fs.c
@@ -32,7 +32,9 @@
 #include <string.h>
 #include <stdlib.h>
 #include <sys/stat.h>
+#ifdef HAVE_SYS_IOCTL_H 
 #include <sys/ioctl.h>
+#endif
 #include <time.h>
 #include <unistd.h>