musl - musl - an implementation of the standard library for Linux-based systems

diff --git a/src/internal/libm.h b/src/internal/libm.h
index 7533f6ba..72ad17d8 100644
--- a/src/internal/libm.h
+++ b/src/internal/libm.h

@@ -267,5 +267,8 @@ hidden double __math_uflow(uint32_t);

hidden double __math_oflow(uint32_t);

hidden double __math_divzero(uint32_t);

hidden double __math_invalid(double);

+#if LDBL_MANT_DIG != DBL_MANT_DIG

+hidden long double __math_invalidl(long double);

+#endif

#endif

diff --git a/src/math/__math_invalidl.c b/src/math/__math_invalidl.c
new file mode 100644
index 00000000..1fca99de
--- /dev/null
+++ b/src/math/__math_invalidl.c

@@ -0,0 +1,9 @@

+#include <float.h>

+#include "libm.h"

+

+#if LDBL_MANT_DIG != DBL_MANT_DIG

+long double __math_invalidl(long double x)

+{

+ return (x - x) / (x - x);

+}

+#endif