From 1e403add6ddec34436fd37cb800b62af4230b666 Mon Sep 17 00:00:00 2001
From: Simon Edwards <simon@simonzone.com>
Date: Wed, 29 Dec 2021 21:37:49 +0100
Subject: [PATCH] Make the RPATH relative for the Linux binary

issue #904
---
 CMakeLists.txt | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c7715017e..6d0e7a322 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -254,6 +254,14 @@ if (WIN32)
 
 endif()
 
+if (UNIX)
+    # Set the RPATH in the binary to a relative one to allow it to find our Qt
+    # libraries regardless of where the base installation directory is.
+    file(RELATIVE_PATH QT_LIBRARY_REL_PATH "${CMAKE_BINARY_DIR}/Release" "${QT_CMAKE_HOME_DIR}/../..")
+    set_target_properties(${CORE_WIDGETS_ADDON} PROPERTIES INSTALL_RPATH "\$ORIGIN/${QT_LIBRARY_REL_PATH}")
+    set_target_properties(${CORE_WIDGETS_ADDON} PROPERTIES BUILD_WITH_INSTALL_RPATH TRUE)
+endif()
+
 target_link_libraries(${CORE_WIDGETS_ADDON} PRIVATE
     "${CMAKE_JS_LIB}"
     Qt5::Widgets