GNU C library
From Teknologisk videncenter
Checking which GNU C Library version
To check which GCLIB you are using run this program.
#include <stdio.h>
#include <gnu/libc-version.h>
int main(void) {
printf("GNU C Library version is %s\n", gnu_get_libc_version());
printf("GNU C Library release is %s\n", gnu_get_libc_release());
return 0;
}
or
heth@mars:~/bin$ ldd --version
ldd (Ubuntu EGLIBC 2.19-0ubuntu6.6) 2.19
Copyright (C) 2014 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Written by Roland McGrath and Ulrich Drepper.
heth@mars:~/bin$