X-Git-Url: https://sigrok.org/gitweb/?p=libserialport.git;a=blobdiff_plain;f=libserialport_internal.h;h=6ea5e5a2e57ebfa345357ed4acfdf4dd80f3d916;hp=ecf8fe95fa51ce4b7993df81d39f873538a5718e;hb=HEAD;hpb=ffbfc5c76ba8100d21d0141478a6c0d761ecfb2f

diff --git a/libserialport_internal.h b/libserialport_internal.h
index ecf8fe9..f1d0d85 100644
--- a/libserialport_internal.h
+++ b/libserialport_internal.h
@@ -93,6 +93,9 @@
 #include <IOKit/serial/ioss.h>
 #include <sys/syslimits.h>
 #include <mach/mach_time.h>
+#if MAC_OS_X_VERSION_MAX_ALLOWED < 120000 /* Before macOS 12 */
+#define kIOMainPortDefault kIOMasterPortDefault
+#endif
 #endif
 #ifdef __linux__
 #include <dirent.h>