From 77ee74be50d673fef1b4b3aecc907e0b15fb27cd Mon Sep 17 00:00:00 2001
From: lethosor <lethosor@gmail.com>
Date: Wed, 9 May 2018 21:15:22 -0400
Subject: [PATCH] Only require symbols to be defined in plugins

Core uses some unresolved symbols on Linux
---
 CMakeLists.txt        | 2 --
 plugins/Plugins.cmake | 5 +++++
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c45f22f1e..3849ef462 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -217,8 +217,6 @@ if(APPLE)
     set(CMAKE_MACOSX_RPATH 1)
 elseif(UNIX)
     add_definitions(-D_LINUX)
-    # Check for unresolved symbols at link time
-    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wl,-z,defs")
 elseif(WIN32)
     add_definitions(-DWIN32)
 endif()
diff --git a/plugins/Plugins.cmake b/plugins/Plugins.cmake
index b97db055d..bf1ebd88b 100644
--- a/plugins/Plugins.cmake
+++ b/plugins/Plugins.cmake
@@ -6,6 +6,11 @@ IF(UNIX)
   IF(DFHACK_BUILD_64)
     SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m64 -mno-avx")
     SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -m64 -mno-avx")
+    IF(NOT APPLE)
+      # Linux: Check for unresolved symbols at link time
+      SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wl,-z,defs")
+      SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wl,-z,defs")
+    ENDIF()
   ELSE()
     SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m32")
     SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -m32")