Add `MBEDTLS_SELF_TEST` check in header files
Add the `MBEDTLS_SELF_TEST` precompilation surrounding the self test functions,
which were missing this check in the header files. ( most of the header files were missing this check).
Addresses issue #971
diff --git a/include/mbedtls/ctr_drbg.h b/include/mbedtls/ctr_drbg.h
index dcbc047..dda356e 100644
--- a/include/mbedtls/ctr_drbg.h
+++ b/include/mbedtls/ctr_drbg.h
@@ -310,6 +310,8 @@
int mbedtls_ctr_drbg_update_seed_file( mbedtls_ctr_drbg_context *ctx, const char *path );
#endif /* MBEDTLS_FS_IO */
+#if defined(MBEDTLS_SELF_TEST)
+
/**
* \brief The CTR_DRBG checkup routine.
*
@@ -318,6 +320,8 @@
*/
int mbedtls_ctr_drbg_self_test( int verbose );
+#endif /* MBEDTLS_SELF_TEST */
+
/* Internal functions (do not call directly) */
int mbedtls_ctr_drbg_seed_entropy_len( mbedtls_ctr_drbg_context *,
int (*)(void *, unsigned char *, size_t), void *,