add check_gl.cpp

Author: archibate

CMakeLists.txt

@@ -3,10 +3,19 @@ cmake_minimum_required(VERSION 3.10)
 if (NOT CMAKE_BUILD_TYPE)
     set(CMAKE_BUILD_TYPE Release)
 endif()
-set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_STANDARD 17)
 
 project(main LANGUAGES CXX C)
 
+if (UNIX AND NOT APPLE)
+    find_package(X11 QUIET)
+    if (X11_FOUND)
+        link_libraries(${X11_LIBRARIES})
+        include_directories(${X11_INCLUDE_DIR})
+    endif()
+    add_definitions(-DCMAKE_FOUND_X11)
+endif()
+
 file(GLOB_RECURSE sources CONFIGURE_DEPENDS src/*.cpp)
 file(GLOB_RECURSE headers CONFIGURE_DEPENDS include/*.h include/*.hpp)
 add_executable(main ${sources} ${headers})