--- ./dln.c.orig	2020-03-31 04:42:18.000000000 -0700
+++ ./dln.c	2020-08-29 16:46:40.000000000 -0700
@@ -1334,8 +1334,7 @@ dln_load(const char *file)
 	    if (ex && ex != ruby_xmalloc) {
 
 #   if defined __APPLE__ && \
-    defined(MAC_OS_X_VERSION_MIN_REQUIRED) && \
-    (MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_11)
+    __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 101100
 		/* dlclose() segfaults */
 		rb_fatal("%s - %s", incompatible, file);
 #   else
--- ./error.c.orig	2020-03-31 04:42:18.000000000 -0700
+++ ./error.c	2020-08-29 16:48:42.000000000 -0700
@@ -379,7 +379,7 @@ preface_dump(FILE *out)
 	"-- Crash Report log information "
 	"--------------------------------------------\n"
 	"   See Crash Report log file under the one of following:\n"
-# if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_6
+# if MAC_OS_X_VERSION_MIN_REQUIRED < 1060
 	"     * ~/Library/Logs/CrashReporter\n"
 	"     * /Library/Logs/CrashReporter\n"
 # endif
@@ -404,7 +404,7 @@ postscript_dump(FILE *out)
 	"[IMPORTANT]"
 	/*" ------------------------------------------------"*/
 	"\n""Don't forget to include the Crash Report log file under\n"
-# if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_6
+# if MAC_OS_X_VERSION_MIN_REQUIRED < 1060
 	"CrashReporter or "
 # endif
 	"DiagnosticReports directory in bug reports.\n"