Prior to this change, if an empty folder existed instead of the
actual libwebsockets source, the build would fail. This commit
checks for an actual file instead, avoid such kind of errors.
Signed-off-by: Tiago Medicci <tiago.medicci@espressif.com>
libwebsockets can be built without TLS support. To allow this, it
was necessary to create a specific Kconfig option that enables TLS
support if OPENSSL_MBEDTLS_WRAPPER is enabled. Otherwise, TLS is
not supported (but libwebsockets can still be used with plain ws://
connections).
Signed-off-by: Tiago Medicci <tiago.medicci@espressif.com>
