1Check compiletime library version 2check_compiletime_version:"2.4.0" 3 4Check runtime library version 5check_runtime_version:"2.4.0" 6 7Check for MBEDTLS_VERSION_C 8check_feature:"MBEDTLS_VERSION_C":0 9 10Check for MBEDTLS_AES_C when already present 11depends_on:MBEDTLS_AES_C 12check_feature:"MBEDTLS_AES_C":0 13 14Check for unknown define 15check_feature:"MBEDTLS_UNKNOWN":-1 16