1  #include <math_ldbl_opt.h>
       2  #include <math/s_nextafter.c>
       3  #if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
       4  strong_alias (__nextafter, __nexttowardd)
       5  strong_alias (__nextafter, __nexttowardld)
       6  #undef nexttoward
       7  compat_symbol (libm, __nexttowardd, nexttoward, GLIBC_2_1);
       8  compat_symbol (libm, __nexttowardld, nexttowardl, GLIBC_2_1);
       9  #endif