From 1d39710144f3563a62a6d451d3d7887f82e529f5 Mon Sep 17 00:00:00 2001
From: reuk <reuk@users.noreply.github.com>
Date: Thu, 14 May 2020 11:40:09 +0100
Subject: [PATCH] CMake:  Add -Wl,--no-undefined to linker flags on Linux

Fixes an issue where VST3 plugins would appear to link successfully, but
fail to load in hosts due to missing symbols.
---
 extras/Build/CMake/JUCEUtils.cmake | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/extras/Build/CMake/JUCEUtils.cmake b/extras/Build/CMake/JUCEUtils.cmake
index 80c55454bc..19530de4a8 100644
--- a/extras/Build/CMake/JUCEUtils.cmake
+++ b/extras/Build/CMake/JUCEUtils.cmake
@@ -1340,6 +1340,10 @@ function(_juce_link_plugin_wrapper shared_code_target kind)
         add_library(${target_name} MODULE)
     endif()
 
+    if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
+        target_link_libraries(${target_name} PRIVATE "-Wl,--no-undefined")
+    endif()
+
     # We re-export the shared code's private include dirs, because the wrapper targets need to
     # see the module headers. We don't just link publicly, because that would introduce
     # conflicting macro definitions.