Do not need DARWIN_10_OR_GREATER but can use __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ instead courtesy Natalia Portillo. Savannah Bug #36330 https://savannah.gnu.org/bugs/?36330

configure.ac

@@ -345,12 +345,6 @@ case $host_os in
 	     DARWIN_PKG_LIB_HACK="$DARWIN_PKG_LIB_HACK -Wl,-framework,DiskArbitration"
 	 fi
 
-	 case $host_os in
-	   darwin1[[0-2]].*)
-	      AC_DEFINE([DARWIN_10_OR_GREATER], 1,
-	      [Define 1 if you have Darwin OS X 10 or greater])
-		;;
-	 esac
 	 AC_SUBST(DARWIN_PKG_LIB_HACK)
 	 LIBCDIO_LIBS="$LIBCDIO_LIBS $DARWIN_PKG_LIB_HACK"
          cd_drivers="${cd_drivers}, Darwin"

lib/driver/osx.c

@@ -70,7 +70,7 @@ typedef enum {
 
 #include <mach/mach.h>
 #include <Carbon/Carbon.h>
-#ifdef DARWIN_10_OR_GREATER
+#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ > 1040
 # include <IOKit/scsi/SCSITaskLib.h>
 #else
 # include <IOKit/scsi-commands/SCSITaskLib.h>
@@ -92,7 +92,7 @@ typedef enum {
 #include <CoreFoundation/CoreFoundation.h>
 #include <IOKit/IOKitLib.h>
 #include <IOKit/IOBSD.h>
-#ifdef DARWIN_10_OR_GREATER
+#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ > 1040
 # include <IOKit/scsi/IOSCSIMultimediaCommandsDevice.h>
 #else
 # include <IOKit/scsi-commands/IOSCSIMultimediaCommandsDevice.h>