Merge commit '4064f428'

* commit '4064f428':
  build: Drop explicit check for dlfcn.h
Merged-by: James Almer <jamrial@gmail.com>

configure

@@ -1924,7 +1924,6 @@ HEADERS_LIST="
     dev_video_meteor_ioctl_meteor_h
     direct_h
     dirent_h
-    dlfcn_h
     dxgidebug_h
     dxva_h
     ES2_gl_h
@@ -5766,7 +5765,6 @@ enabled xlib &&
 check_header d3d11.h
 check_header direct.h
 check_header dirent.h
-check_header dlfcn.h
 check_header dxgidebug.h
 check_header dxva.h
 check_header dxva2api.h -D_WIN32_WINNT=0x0600