Use of DEVRANDOM must be #ifdef'ed (the #ifdef was commented out
between SSLeay 0.8.1b and 0.9.0b with no apparent reason).
If we *want* an error when DEVRANDOM is not defined (it always is with
the current e_os.h) we should use #error.

crypto/rand/md_rand.c

diff --git a/crypto/rand/md_rand.c b/crypto/rand/md_rand.c
index 72c557b..0ce390b 100644
--- a/crypto/rand/md_rand.c
+++ b/crypto/rand/md_rand.c
@@ -255,7 +255,7 @@
 		l=time(NULL);
 		RAND_seed(&l,sizeof(l));
 
-/* #ifdef DEVRANDOM */
+#ifdef DEVRANDOM
 		/* 
 		 * Use a random entropy pool device.
 		 * Linux 1.3.x and FreeBSD-Current has 
@@ -275,7 +275,7 @@
 			RAND_seed(tmpbuf,32);
 			memset(tmpbuf,0,32);
 			}
-/* #endif */
+#endif
 #ifdef PURIFY
 		memset(state,0,STATE_SIZE);
 		memset(md,0,MD_DIGEST_LENGTH);