MBEDTLS_X509_USE_C macro

\def MBEDTLS_THREADING_C Enable the threading abstraction layer. By default mbed TLS assumes it is used in a non-threaded environment or that contexts are not shared between threads. If you do intend to use contexts between threads, you will need to enable this layer to prevent race conditions. See also our Knowledge Base article about threading: https://tls.mbed.org/kb/development/thread-safety-and-multi-threading Module: library/threading.c This allows different threading implementations (self-implemented or provided). You will have to enable either MBEDTLS_THREADING_ALT or MBEDTLS_THREADING_PTHREAD. Enable this layer to allow use of mutexes within mbed TLS \def MBEDTLS_TIMING_C Enable the semi-portable timing interface. Module: library/timing.c Caller: library/havege.c This module is used by the HAVEGE random number generator. \def MBEDTLS_VERSION_C Enable run-time version information. Module: library/version.c This module provides run-time version information. \def MBEDTLS_X509_USE_C Enable X.509 core for using certificates. Module: library/x509.c Caller: library/x509_crl.c library/x509_crt.c library/x509_csr.c Requires: MBEDTLS_ASN1_PARSE_C, MBEDTLS_BIGNUM_C, MBEDTLS_OID_C, MBEDTLS_PK_PARSE_C This module is required for the X.509 parsing modules.