--- CMakeLists.txt.orig	2020-07-12 19:33:44 UTC
+++ CMakeLists.txt
@@ -202,7 +202,6 @@ elseif(CMAKE_BUILD_TYPE STREQUAL "RelWithDebInfo")
   set(WL_DEBUG_FLAGS "-DNDEBUG -DNOPARACHUTE")
   option(OPTION_ASAN "Build with AddressSanitizer" ON)
 else()
-  message(FATAL_ERROR "Unknown CMAKE_BUILD_TYPE: ${CMAKE_BUILD_TYPE}")
 endif()
 
 wl_add_flag(WL_GENERIC_CXX_FLAGS "-std=c++11")
@@ -219,7 +218,7 @@ endif(OPTION_ASAN)
 
 # This is set to avoid linker errors when using GLVND-libs on Linux
 if("${OpenGL_GL_PREFERENCE}" STREQUAL "GLVND")
-   link_libraries("GL")
+   link_libraries(OpenGL::GL)
    add_compile_definitions(WL_USE_GLVND)
    message(STATUS "Adding linker flags for GLVND.")
 endif()
@@ -352,7 +351,7 @@ endif (OPTION_BUILD_TESTS)
 
 install (
   FILES ${CMAKE_CURRENT_BINARY_DIR}/VERSION
-  DESTINATION ${WL_INSTALL_BASEDIR}
+  DESTINATION ${WL_INSTALL_DOCDIR}
   CONFIGURATIONS Debug;Release
   COMPONENT CoreVersionFile
 )
@@ -401,10 +400,9 @@ install(
 
 install(
   FILES
-    COPYING
     CREDITS
     ChangeLog
-  DESTINATION ${WL_INSTALL_BASEDIR}
+  DESTINATION ${WL_INSTALL_DOCDIR}
   CONFIGURATIONS Debug;Release
   COMPONENT CoreLicenseFiles
 )
@@ -412,7 +410,7 @@ install(
 install(
   DIRECTORY
     doc
-  DESTINATION ${WL_INSTALL_BASEDIR}
+  DESTINATION ${WL_INSTALL_DOCDIR}
   CONFIGURATIONS Debug
   COMPONENT DocFiles
   PATTERN "CMakeLists.txt" EXCLUDE