From d94809d8acf3a12b978a0fd3e9aadfc858356b6c Mon Sep 17 00:00:00 2001
From: Max Horn <max@quendi.de>
Date: Fri, 6 Sep 2024 00:19:08 +0200
Subject: [PATCH] buildsys: tweak GAC_LDFLAGS on macOS (#5789)

- don't use a bundle loader (esp. for installed GAP)
- don't use flat namespace, instead use dynamic lookup
- use `-Wl,-no_fixup_chains` to avoid warnings (and resolve
  potential issues) with certain Xcode versions, see
  <https://github.com/python/cpython/issues/97524>
---
 Makefile.rules | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile.rules b/Makefile.rules
index 06e69c8e1d..b987504836 100644
--- a/Makefile.rules
+++ b/Makefile.rules
@@ -308,7 +308,7 @@ ifneq (,$(findstring cygwin,$(host_os)))
 else
   ifneq (,$(findstring darwin,$(host_os)))
     GAC_CFLAGS = -fno-common
-    GAC_LDFLAGS = -bundle -flat_namespace -bundle_loader $(SYSINFO_GAP)
+    GAC_LDFLAGS = -bundle -undefined dynamic_lookup -Wl,-no_fixup_chains
   else
     GAC_CFLAGS = -fPIC
     GAC_LDFLAGS = -shared -fPIC