1 files changed, 35 insertions, 0 deletions
diff --git a/math/test-finite-macros.c b/math/test-finite-macros.c
new file mode 100644
index 0000000000..94a2f8959d
--- /dev/null
+++ b/math/test-finite-macros.c
@@ -0,0 +1,35 @@
+/* Test finite-math-only code does not conflict with user macros (bug 22028).
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* The main test is that the inclusion of <math.h> compiles.  */
+#define f first test macro
+#define l second test macro
+#define f128 third test macro
+
+#include <math.h>
+
+volatile float a, b;
+
+static int
+do_test (void)
+{
+  b = acosf (a);
+  return 0;
+}
+
+#include <support/test-driver.c>