- (dtucker) [entropy.c] Bug #1238: include signal.h to fix compilation error
   on Solaris 8 w/out /dev/random or prngd.  Patch from rl at
   math.technion.ac.il.
diff --git a/entropy.c b/entropy.c
index 4f19c87..ccabb13 100644
--- a/entropy.c
+++ b/entropy.c
@@ -36,6 +36,7 @@
 #endif
 #include <stdarg.h>
 #include <unistd.h>
+#include <signal.h>
 
 #include <openssl/rand.h>
 #include <openssl/crypto.h>