RNG : change to --disable-rng, non-autoconf scenario, help msg

configure.ac

@@ -221,17 +221,17 @@ then
 fi
 
 
-AC_ARG_ENABLE([norng],
-    [  --enable-norng       Enable Test Cert (default: disabled)],
-    [ ENABLED_NORNG=$enableval ],
-    [ ENABLED_NORNG=no ]
+AC_ARG_ENABLE([rng],
+    [AS_HELP_STRING([  --enable-rng       Enable compiling and using RNG (default: enabled)])],
+    [ ENABLED_RNG=$enableval ],
+    [ ENABLED_RNG=yes ]
     )
 
-if test "$ENABLED_NORNG" = "yes"
+if test "$ENABLED_RNG" = "no"
 then
     AM_CFLAGS="$AM_CFLAGS -DWC_NO_RNG"
 fi
-AM_CONDITIONAL([BUILD_RNG], [test "x$ENABLED_NORNG" = "xno"])
+AM_CONDITIONAL([BUILD_RNG], [test "x$ENABLED_RNG" = "xyes"])
 
 
 # DTLS-SCTP

wolfcrypt/src/random.c

@@ -82,6 +82,7 @@ int  wc_RNG_GenerateByte(WC_RNG* rng, byte* b)
     }
 #endif /* HAVE_HASHDRBG || NO_RC4 */
 #else /* else build without fips */
+#ifndef WC_NO_RNG /* if not FIPS and RNG is disabled then do not compile */
 #include <wolfssl/wolfcrypt/error-crypt.h>
 
 /* Allow custom RNG system */
@@ -1671,5 +1672,6 @@ int wc_GenerateSeed(OS_Seed* os, byte* output, word32 sz)
 
 #endif /* USE_WINDOWS_API */
 #endif /* CUSTOM_RAND_GENERATE_BLOCK */
+#endif /* WC_NO_RNG */
 #endif /* HAVE_FIPS */