Fixes for getrandom detection

Author: lealem47

configure.ac

@@ -139,7 +139,7 @@ AC_ARG_ENABLE([linuxkm-defaults],
     )
 
 
-AC_CHECK_HEADERS([arpa/inet.h fcntl.h limits.h netdb.h netinet/in.h stddef.h time.h sys/ioctl.h sys/socket.h sys/time.h errno.h sys/un.h ctype.h])
+AC_CHECK_HEADERS([arpa/inet.h fcntl.h limits.h netdb.h netinet/in.h stddef.h time.h sys/ioctl.h sys/socket.h sys/time.h errno.h sys/un.h ctype.h sys/random.h])
 AC_CHECK_LIB([network],[socket])
 AC_C_BIGENDIAN
 AC_C___ATOMIC
@@ -186,6 +186,9 @@ fi
 #ifdef HAVE_CTYPE_H
     #include <ctype.h>
 #endif
+#ifdef HAVE_SYS_RANDOM_H
+    #include <sys/random.h>
+#endif
 ]])
 
 AC_PROG_INSTALL

wolfcrypt/src/random.c

@@ -4256,6 +4256,8 @@ int wc_GenerateSeed(OS_Seed* os, byte* output, word32 sz)
         }
         close(os->fd);
 #else
+        (void)output;
+        (void)sz;
         ret = NOT_COMPILED_IN;
 #endif /* NO_FILESYSTEM */