From 495a6eddf7b80bc2405fe60e4a9185723006dbe2 Mon Sep 17 00:00:00 2001
From: Matthias Hochsteger <mhochsteger@cerbsim.com>
Date: Fri, 18 Oct 2019 16:38:50 +0200
Subject: [PATCH] [cmake] Link AppKit to avoid undefined references if OCC is
 statically linked on MacOS

---
 libsrc/occ/CMakeLists.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libsrc/occ/CMakeLists.txt b/libsrc/occ/CMakeLists.txt
index e4589b1b..68d26218 100644
--- a/libsrc/occ/CMakeLists.txt
+++ b/libsrc/occ/CMakeLists.txt
@@ -12,6 +12,11 @@ target_link_libraries(occ PUBLIC ngcore)
 
 if(NOT WIN32)
     target_link_libraries( occ PRIVATE ${OCC_LIBRARIES} ${PYTHON_LIBRARIES})
+    if(USE_OCC AND APPLE)
+        # Link AppKit in case OCE was built as static libraries
+        find_library(AppKit AppKit)
+        target_link_libraries( occ PRIVATE ${AppKit} )
+    endif(USE_OCC AND APPLE)
     install( TARGETS occ ${NG_INSTALL_DIR})
     if (USE_GUI)
         target_link_libraries( occvis PUBLIC occ )