Only link sfml-main for the GUI examples in release mode.

cmake/Macros.cmake

@@ -130,7 +130,7 @@ macro(sfml_add_example target)
     source_group("" FILES ${THIS_SOURCES})
 
     # create the target
-    if(THIS_GUI_APP AND SFML_OS_WINDOWS)
+    if(THIS_GUI_APP AND SFML_OS_WINDOWS AND NOT DEFINED CMAKE_CONFIGURATION_TYPES AND ${CMAKE_BUILD_TYPE} STREQUAL "Release")
         add_executable(${target} WIN32 ${THIS_SOURCES})
         target_link_libraries(${target} sfml-main)
     else()

examples/win32/Win32.cpp

@@ -47,8 +47,10 @@ LRESULT CALLBACK onEvent(HWND handle, UINT message, WPARAM wParam, LPARAM lParam
 /// \return Error code
 ///
 ////////////////////////////////////////////////////////////
-INT WINAPI WinMain(HINSTANCE instance, HINSTANCE, LPSTR, INT)
+int main()
 {
+    HINSTANCE instance = GetModuleHandle(NULL);
+    
     // Define a class for our main window
     WNDCLASS windowClass;
     windowClass.style         = 0;