Change #warning to #pragma message: #warning is a gcc-ism and the code in question is msvc-specific (Tested on all msvc variants, plus gcc-minw32).

[SVN r40110]

libs/test

@@ -1 +1 @@
-Subproject commit 0f09ca59de61419bcd2e3aa332cedff5c44a8a10
+Subproject commit 02858771d24c1645c047e3f0d33247426491881a