Fixed dlls/ntdll/cdrom.c compilation in Darwin by adding HAVE_IOKit
detection to configure and defining SENSEBUFLEN as kSenseDefaultSize
(which is corresponding IOKit enum value).

diff --git a/configure b/configure
index 87fce38..160cd2c 100755
--- a/configure
+++ b/configure
@@ -7110,7 +7110,9 @@
 
 
 
+
 for ac_header in \
+	IOKit/IOKitLib.h \
 	arpa/inet.h \
 	arpa/nameser.h \
 	asm/types.h \