1 files changed, 13 insertions, 0 deletions
diff --git a/winsup/cygwin/math/fmaxl.c b/winsup/cygwin/math/fmaxl.c
new file mode 100644
index 000000000..4ac6e2194
--- /dev/null
+++ b/winsup/cygwin/math/fmaxl.c
@@ -0,0 +1,13 @@
+/**
+ * This file has no copyright assigned and is placed in the Public Domain.
+ * This file is part of the mingw-w64 runtime package.
+ * No warranty is given; refer to the file DISCLAIMER.PD within this package.
+ */
+#include <math.h>
+
+long double
+fmaxl (long double _x, long double  _y)
+{
+  return (__builtin_isgreaterequal (_x, _y) || __builtin_isnan (_y))
+	 ?  _x : _y;
+}