https://git.ruby-lang.org/ruby.git/commit/?id=baf37a5f9c

From baf37a5f9c34b660fdb0eb3f899df1303365c723 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Fri, 27 Dec 2019 00:46:50 +0900
Subject: Get rid of LIST_HEAD conflict with a system header on macOS


diff --git a/vm_dump.c b/vm_dump.c
index 09051cf..4bc41f2 100644
--- a/vm_dump.c
+++ b/vm_dump.c
@@ -23,6 +23,9 @@ https://github.com/ruby/ruby/blob/trunk/vm_dump.c#L23
 # ifdef __LP64__
 #  define vm_region_recurse vm_region_recurse_64
 # endif
+/* that is defined in sys/queue.h, and conflicts with
+ * ccan/list/list.h */
+# undef LIST_HEAD
 #endif
 
 #include "addr2line.h"
-- 
cgit v0.10.2


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