Squashed 'third_party/boostorg/math/' content from commit 0e9549f

Change-Id: I7c2a13cb6a5beea4a471341510d8364cedd71613
git-subtree-dir: third_party/boostorg/math
git-subtree-split: 0e9549ff2f854e6edafaf4627d65026f2f533a18
diff --git a/config/has_gcc_visibility.cpp b/config/has_gcc_visibility.cpp
new file mode 100644
index 0000000..6c7d6f9
--- /dev/null
+++ b/config/has_gcc_visibility.cpp
@@ -0,0 +1,13 @@
+//  Copyright John Maddock 20010.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef __GNUC__
+# error "This is a GCC specific test case".
+#endif
+
+int main()
+{
+   return 0;
+}