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/* From libc-5.3.12 */

#include <errno.h>

#include <unistd.h>

#include <sys/syscall.h>

extern void * ___brk_addr;

extern int __init_brk (void);

extern void *_brk(void *ptr);

void *

sbrk(intptr_t increment)

{

    if (__init_brk () == 0)

    {

                char * tmp = (char*)___brk_addr+increment;

                ___brk_addr = _brk(tmp);

                if (___brk_addr == tmp)

                        return tmp-increment;

                __set_errno(ENOMEM);

                return ((void *) -1);

    }

    return ((void *) -1);

}