1 files changed, 2 insertions, 1 deletions
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()