1 --- a/libc/sysdeps/linux/common/bits/mathcalls.h
2 +++ b/libc/sysdeps/linux/common/bits/mathcalls.h
6 /* Return nonzero if VALUE is not a number. */
7 -__MATHDECL_PRIV (int,__isnan,, (_Mdouble_ __value), (__const__));
8 +__MATHDECL_PRIV (int,isnan,, (_Mdouble_ __value), (__const__));
10 #if defined __USE_MISC || defined __USE_XOPEN
11 /* Return nonzero if VALUE is not a number. */