From 95ee06ade21ef7bf525b137995ce39d8ed572be0 Mon Sep 17 00:00:00 2001
From: aWZHY0yQH81uOYvH <32046476+aWZHY0yQH81uOYvH@users.noreply.github.com>
Date: Fri, 10 Nov 2023 20:07:58 -0800
Subject: [PATCH] fix CMake build on macOS (#2133)

---
 CMakeLists.txt | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 75f476caf..1b743c38b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -290,6 +290,14 @@ set_target_properties(
   synlig PROPERTIES SOVERSION "${SYNLIG_VERSION_MAJOR}.${SYNLIG_VERSION_MINOR}")
 set_target_properties(synlig PROPERTIES OUTPUT_NAME "systemverilog")
 set_target_properties(synlig PROPERTIES PREFIX "")
+set_target_properties(synlig PROPERTIES SUFFIX ".so")
+
+# Allow undefined symbols at link time on macOS. These symbols should already be
+# present within yosys when the plugin is loaded.
+if(APPLE)
+  set_target_properties(synlig PROPERTIES LINK_FLAGS
+                                          "-undefined dynamic_lookup")
+endif()
 
 target_include_directories(
   synlig