1 files changed, 5 insertions, 0 deletions
diff --git a/winsup/cygwin/math/nanl.c b/winsup/cygwin/math/nanl.c
new file mode 100644
index 000000000..f936b31cd
--- /dev/null
+++ b/winsup/cygwin/math/nanl.c
@@ -0,0 +1,5 @@
+long double
+nanl (const char *tagp)
+{
+  return __builtin_nanl ("");
+}