rand: avoid unused function warning for FreeBSD and NetBSD.

The existing checks were not sufficiently version specific.

Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/27204)

diff --git a/providers/implementations/rands/seeding/rand_unix.c b/providers/implementations/rands/seeding/rand_unix.c
index c3a5d8b3bf245b0e89766face53f4e1190de027c..bd21acf2bcb3a722824f927c205894db1f052793 100644 (file)
--- a/providers/implementations/rands/seeding/rand_unix.c
+++ b/providers/implementations/rands/seeding/rand_unix.c
@@ -211,7 +211,9 @@ void ossl_rand_pool_keep_random_devices_open(int keep)
 #   define OPENSSL_RAND_SEED_DEVRANDOM
 #  endif
 
-#  if (defined(__FreeBSD__) || defined(__NetBSD__)) && defined(KERN_ARND)
+#  if ((defined(__FreeBSD__) && __FreeBSD_version < 1200061)        \
+       || (defined(__NetBSD__) && __NetBSD_Version < 1000000000))   \
+      && defined(KERN_ARND)
 /*
  * sysctl_random(): Use sysctl() to read a random number from the kernel
  * Returns the number of bytes returned in buf on success, -1 on failure.