From 324d7ebca12909a91eb98c41ee73304ad7ee7ea6 Mon Sep 17 00:00:00 2001
From: Stefan Boberg <stefan.boberg@epicgames.com>
Date: Wed, 17 Sep 2025 12:48:38 +0200
Subject: rpmalloc fixes (#499)

* fixed rpmalloc build on Linux and Mac
* updated rpmalloc from develop branch on the advice of mjansson
* enabled rpmalloc on all platforms

note that this does not change any behaviour unless `--malloc=rpmalloc` is passed in on the command line. The default is still `mimalloc`.
---
 xmake.lua | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'xmake.lua')

diff --git a/xmake.lua b/xmake.lua
index 46c403c11..7a54bd236 100644
--- a/xmake.lua
+++ b/xmake.lua
@@ -121,6 +121,7 @@ end
 
 if is_os("linux") then
     add_cxxflags("-Wno-vla-cxx-extension")
+    add_defines("_GNU_SOURCE")
 end
 
 -- Turn use of undefined cpp macros into errors
@@ -150,7 +151,7 @@ option_end()
 add_define_by_config("ZEN_USE_MIMALLOC", "zenmimalloc")
 
 option("zenrpmalloc")
-    set_default(is_os("windows"))
+    set_default(true)
     set_showmenu(true)
     set_description("Use rpmalloc for faster memory management")
 option_end()
-- 
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