1Fix build failure with +quartz variant on OS X 10.8 and 10.9. 2Even though Gestalt was deprecated in OS X 10.8, it should work fine 3through OS X 10.9, and its replacement NSOperatingSystemVersion was 4not introduced until OS X 10.10. 5 6Patch from MacPorts project and reported upstream: 7https://trac.macports.org/ticket/55649 8--- tk8.6.8/macosx/tkMacOSXXStubs.c.orig 2017-12-06 09:25:08.000000000 -0600 9+++ tk8.6.8-patched/macosx/tkMacOSXXStubs.c 2018-01-06 19:34:17.000000000 -0600 10@@ -175,7 +175,7 @@ 11 { 12 int major, minor, patch; 13 14-#if MAC_OS_X_VERSION_MIN_REQUIRED < 1080 15+#if MAC_OS_X_VERSION_MIN_REQUIRED < 101000 16 Gestalt(gestaltSystemVersionMajor, (SInt32*)&major); 17 Gestalt(gestaltSystemVersionMinor, (SInt32*)&minor); 18 Gestalt(gestaltSystemVersionBugFix, (SInt32*)&patch); 19