uselib - select shared library
int uselib(const char *library));
uselib selects the shared library binary that will be used
by this processes.
On success, zero is returned. On error, -1 is returned, and
errno is set appropriately.
In addition to all of the error codes returned by open(2)
and mmap(2), the following may also be returned:
The file specified by library is not executable, or
does not have the correct magic numbers.
The library specified by library is not readable.
uselib() is Linux specific, and should not be used in pro-
grams intended to be portable.
open(2), mmap(2), ldd(1),