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#
# Copyright 2025 Staysail Systems, Inc. <info@staysail.tech>
#
# This software is supplied under the terms of the MIT License, a
# copy of which should be located in the distribution where this
# file was obtained (LICENSE.txt). A copy of the license may also be
# found online at https://opensource.org/licenses/MIT.
#
if (NNG_TLS_ENGINE STREQUAL "mbed")
message(NOTICE "
************************************************************
Linking against Mbed TLS may change license terms.
Consult a lawyer and the license files for details.
************************************************************")
nng_sources(mbedtls.c)
nng_defines(NNG_SUPP_TLS)
# For now Mbed TLS has PSK unconditionally
nng_defines(NNG_SUPP_TLS_PSK)
nng_defines(NNG_TLS_ENGINE_MBEDTLS)
# If Mbed TLS was added by a consuming project, then we should use that
# instance of it, instead of configuring our own.
if (TARGET mbedtls)
nng_link_libraries(mbedtls)
else()
# We want to prefer config mode over our local find package.
# mbedTLS v3 has a config file, which should work better than
# what we do here. We only make this override locally, to
# avoid confounding any other package consumers, and we honor overrides.
if (NOT (DEFINED CMAKE_FIND_PACKAGE_PREFER_CONFIG))
set(CMAKE_FIND_PACKAGE_PREFER_CONFIG TRUE)
nng_find_package(MbedTLS)
unset(CMAKE_FIND_PACKAGE_PREFER_CONFIG)
else()
nng_find_package(MbedTLS)
endif()
nng_link_libraries_public(MbedTLS::mbedtls MbedTLS::mbedcrypto MbedTLS::mbedx509)
endif()
endif()
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