fix: properly set rpath to $ORIGIN in standalone builds

Author: craftablescience

CMakeLists.txt

@@ -42,8 +42,9 @@ option(VPKEDIT_USE_LTO "Build VPKEdit with link-time optimization enabled" OFF)
 # Global CMake options
 if(PROJECT_IS_TOP_LEVEL)
     # Set proper runpath
-    set(CMAKE_SKIP_BUILD_RPATH OFF)
+    set(CMAKE_SKIP_RPATH OFF)
     set(CMAKE_BUILD_RPATH_USE_ORIGIN ON)
+    set(CMAKE_BUILD_RPATH $ORIGIN)
     set(CMAKE_INSTALL_RPATH $ORIGIN)
 
     # Compile with PIC