+++ /dev/null
---- a/libc/sysdeps/linux/common/bits/mathcalls.h
-+++ b/libc/sysdeps/linux/common/bits/mathcalls.h
-@@ -229,7 +229,7 @@
-
-
- /* Return nonzero if VALUE is not a number. */
--__MATHDECL_PRIV (int,__isnan,, (_Mdouble_ __value), (__const__));
-+__MATHDECL_PRIV (int,isnan,, (_Mdouble_ __value), (__const__));
-
- #if defined __USE_MISC || defined __USE_XOPEN
- /* Return nonzero if VALUE is not a number. */