configure: Check the correct variable for the Wayland EGL library.

configure

@@ -16356,7 +16356,7 @@ CPPFLAGS=$ac_save_CPPFLAGS
 
         if test "x$with_wayland" != "x"
         then
-            if test -z "$ac_cv_lib_soname_EGL" -o -z "$HAVE_LIBWAYLAND_EGL"
+            if test -z "$ac_cv_lib_soname_EGL" -o "$ac_cv_lib_wayland_egl_wl_egl_window_create" != yes
 then :
   case "x$with_opengl" in
   x)   as_fn_append wine_notices "|EGL ${notice_platform}development files not found, the Wayland driver won't support OpenGL" ;;

configure.ac

@@ -1392,7 +1392,7 @@ then
                   [WAYLAND_EGL_LIBS=""],[$WAYLAND_EGL_LIBS])])])
         if test "x$with_wayland" != "x"
         then
-            WINE_NOTICE_WITH(opengl, [test -z "$ac_cv_lib_soname_EGL" -o -z "$HAVE_LIBWAYLAND_EGL"],
+            WINE_NOTICE_WITH(opengl, [test -z "$ac_cv_lib_soname_EGL" -o "$ac_cv_lib_wayland_egl_wl_egl_window_create" != yes],
                 [EGL ${notice_platform}development files not found, the Wayland driver won't support OpenGL])
         fi
     fi