diff -r 6e4ca1c46370 -r 6e09555b25b4 cmake_modules/compilerchecks.cmake
--- a/cmake_modules/compilerchecks.cmake	Wed Oct 09 15:30:29 2019 +0200
+++ b/cmake_modules/compilerchecks.cmake	Wed Oct 09 16:35:06 2019 +0200
@@ -62,7 +62,7 @@
         endif()
     endif()
 
-    if(CMAKE_BUILD_TYPE MATCHES "RELEASE" OR CMAKE_BUILD_TYPE MATCHES "RELWITHDEBINFO")
+    if(CMAKE_BUILD_TYPE MATCHES "Release" OR CMAKE_BUILD_TYPE MATCHES "RelWithDebInfo")
         set(CMAKE_REQUIRED_FLAGS "-Wl,--as-needed")
         check_c_compiler_flag("" HAVE_ASNEEDED)
         if(HAVE_ASNEEDED)