Meson build was using the wrong sfml_main on windows.

meson.build

@@ -24,7 +24,7 @@ if build_machine.system() == 'windows'
     language: 'cpp',
   )
 
-  sfml_main = dependency('sfml_main')
+  sfml_main = subproject('sfml').get_variable('sfml_main_dep')
   opengl32 = cc.find_library('opengl32', required: true)
   winmm = cc.find_library('winmm', required: true)
   gdi32 = cc.find_library('gdi32', required: true)