From 933d14ef1d45c60194f5f2dd09b4b85dd5daceff Mon Sep 17 00:00:00 2001
From: Martchus <martchus@gmx.net>
Date: Sat, 4 Aug 2018 15:22:32 +0200
Subject: [PATCH] Check whether include dirs for generator exist at configure
 time

---
 lib/cmake/modules/ReflectionGenerator.cmake | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/cmake/modules/ReflectionGenerator.cmake b/lib/cmake/modules/ReflectionGenerator.cmake
index 58cb1e1..2ab9098 100644
--- a/lib/cmake/modules/ReflectionGenerator.cmake
+++ b/lib/cmake/modules/ReflectionGenerator.cmake
@@ -91,6 +91,9 @@ function(add_reflection_generator_invocation)
 
     # apply specified REFLECTION_GENERATOR_INCLUDE_DIRECTORIES
     foreach(INCLUDE_DIR ${REFLECTION_GENERATOR_INCLUDE_DIRECTORIES})
+        if(NOT IS_DIRECTORY "${INCLUDE_DIR}")
+            message(FATAL_ERROR "Specified include directory \"${INCLUDE_DIR})\" for reflection generator doesn't exists.")
+        endif()
         list(APPEND ARGS_CLANG_OPTIONS -I "${INCLUDE_DIR}")
     endforeach()