* lib/random.c, lib/random_r.c:
Include libc-config.h if !_LIBC, not config.h unilaterally.
* lib/random.c:
Do not include stdint.h or time.h; not needed.
Include libc-lock.h if _LIBC, and define substitute macros otherwise.
(unsafe_state): Rename from generator. All uses changed.
Use C99-style initializers.
(__random, __srandom, __initstate, __setstate): Rename from
non-underscored version, but define it to non-underscored version
on Gnulib. Add a lock.
* lib/random_r.c (__srandom_r, __initstate_r, __setstate_r, __random_r):
Likewise.
Do not include <stdint.h>; not needed since stdlib.h defines int32_t.
(weak_alias, __set_errno) [!_LIBC]: Remove; now done by libc-config.
(__srandom_r): Use int32_t instead of long int where int32_t will do.
(__random_r): Use uint32 to fix glibc bug 17343.
* modules/random, modules/random_r (Depends-on): Add libc-config.
Depend on stdint only if $HAVE_RANDOM = 0.