* mingwex/math/nexttowardf.c: New file. * mingwex/math/nextafterl.c: Add nexttowardl aliaa. * mingwex/Makefile.in (MATH_DISTFILES): Add nexttoward.c, mexttowardf.c, (MATH_OBJS): Add nexttoward.o, mexttowardf.o, * include/math.h (nexttoward, nextowardf, nexttowardl): Add prototypes.