Merge topic 'mingw-unix-generator'

be9afbf Find mingw's windres also when Unix Makefiles are used

Modules/Platform/Windows-GNU.cmake

@@ -57,6 +57,10 @@ if("${_help}" MATCHES "GNU ld .* 2\\.1[1-6]")
   set(__WINDOWS_GNU_LD_RESPONSE 0)
 endif()
 
+if(NOT CMAKE_GENERATOR_RC AND CMAKE_GENERATOR MATCHES "Unix Makefiles")
+  set(CMAKE_GENERATOR_RC windres)
+endif()
+
 enable_language(RC)
 
 macro(__windows_compiler_gnu lang)