Fix devtest Lua error

[minetest.git] / CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e4bda3afbec8a990314a33c3ff6455aff3308141..c46ff6c778c634aecaaea11315502aa976d7830b 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -61,7 +61,7 @@ set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/Modules/")
 find_package(Irrlicht)
 if(BUILD_CLIENT AND NOT IRRLICHT_FOUND)
        message(FATAL_ERROR "Irrlicht is required to build the client, but it was not found.")
-elseif(IRRLICHT_INCLUDE_DIR STREQUAL "")
+elseif(NOT IRRLICHT_INCLUDE_DIR)
        message(FATAL_ERROR "Irrlicht headers are required to build the server, but none found.")
 endif()