[musl] Bug in atoll strtoll, the output of then differ

[Domingo Alvarez Duarte <mingodad@gmail.com>]

Hello !

Doing some work with emscripten with this project 
https://github.com/mingodad/CG-SQL-Lua-playground I was getting some 
errors with the usage of "atoll" and with this small program to compare 
the output of "musl" and "glibc" I found what seems to be a bug in 
"atoll" because with "musl" it gives a different output than "strtoll".

=====

#include <stdio.h>
#include <stdlib.h>

int main(int argc, char *argv[])
{
     const char *s = "9223372036854775808";
     long  long ll = atoll(s);
     long long ll2 = strtoll (s, (char **) NULL, 10);
     int imax = 0x7fffffff;
     printf("%s : %lld : %lld : %d : %d\n",  s, ll, ll2, imax, ll <= imax);
     return 0;
}

=====

Output from "glibc":

=====

9223372036854775808 : 9223372036854775807 : 9223372036854775807 : 
2147483647 : 0

=====

Output from "musl":

=====

9223372036854775808 : -9223372036854775808 : 9223372036854775807 : 
2147483647 : 1

=====

Cheers !