Rename the 'no entropy' feature to MBEDTLS_TEST_NULL_ENTROPY
Following review and for clarity, changed the name of the feature to 'null
entropy'.
diff --git a/library/entropy.c b/library/entropy.c
index 1a7b9ab..49710de 100644
--- a/library/entropy.c
+++ b/library/entropy.c
@@ -27,6 +27,12 @@
#if defined(MBEDTLS_ENTROPY_C)
+#if defined(MBEDTLS_TEST_NULL_ENTROPY)
+#warning "**** WARNING! MBEDTLS_TEST_NULL_ENTROPY defined! ****"
+#warning "**** THIS BUILD HAS NO DEFINED ENTROPY SOURCES ****"
+#warning "**** NOT SUITABLE FOR PRODUCTION ****"
+#endif
+
#include "mbedtls/entropy.h"
#include "mbedtls/entropy_poll.h"
@@ -73,7 +79,7 @@
mbedtls_havege_init( &ctx->havege_data );
#endif
-#if defined(MBEDTLS_TEST_WO_ENTROPY)
+#if defined(MBEDTLS_TEST_NULL_ENTROPY)
mbedtls_entropy_add_source( ctx, mbedtls_zero_entropy_poll, NULL,
1, MBEDTLS_ENTROPY_SOURCE_STRONG );
#endif