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#
# Copyright 2024 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.
#
#
# Try to find the wolfSSL library. We only support modern wolfSSL,
# not the older CyaSSL.
#
# Sets the following:
#
# WOLFSSL_INCLUDE_DIR - Where to find wolfssl/ssl.h, etc.
# WOLFSSL_FOUND - True if we found wolfSSL.
# WOLFSSL_LIBRARIES - The wolfSSL library (libwolfssl).
# WOLFSSL_LIBRARY - The wolfSSL library (libwolfssl).
# WOLFSSL_VERSION - $major.$minor.$revision (e.g. ``3.13.0``).
#
# Adds wolfSSL::wolfssl target for the library.
#
# Hints:
#
# Set ``WOLFSSL_ROOT_DIR`` to the root directory of wolfSSL installation.
#
set(_WOLFSSL_ROOT_HINTS ${WOLFSSL_ROOT_DIR} ENV WOLFSSL_ROOT_DIR)
include(FindPackageHandleStandardArgs)
include(CMakePushCheckState)
find_path(WOLFSSL_INCLUDE_DIR
NAMES wolfssl/ssl.h
HINTS ${_WOLFSSL_ROOT_HINTS}
PATHS /usr/local
PATH_SUFFIXES include)
find_library(WOLFSSL_LIBRARY
NAMES wolfssl
HINTS ${_WOLFSSL_ROOT_HINTS}
PATHS /usr/local
PATH_SUFFIXES lib)
set(WOLFSSL_LIBRARIES ${WOLFSSL_LIBRARY})
if (${WOLFSSL_LIBRARY-NOTFOUND})
message(FATAL_ERROR "Failed to find wolfSSL library")
endif()
mark_as_advanced(WOLFSSL_INCLUDE_DIR WOLFSSL_LIBRARY)
# Extract the version from the header... hopefully it matches the library.
file(STRINGS ${WOLFSSL_INCLUDE_DIR}/wolfssl/version.h _WOLFSSL_VERLINE
REGEX "^#define[ \t]+LIBWOLFSSL_VERSION_STRING[\t ].*")
string(REGEX REPLACE ".*WOLFSSL_VERSION_STRING[\t ]+\"(.*)\"" "\\1" WOLFSSL_VERSION ${_WOLFSSL_VERLINE})
add_library(wolfSSL::wolfssl UNKNOWN IMPORTED)
set_target_properties(wolfSSL::wolfssl PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${WOLFSSL_INCLUDE_DIR}")
set_target_properties(wolfSSL::wolfssl PROPERTIES IMPORTED_LOCATION "${WOLFSSL_LIBRARY}")
set(wolfSSL_TARGET wolfssl::wolfssl)
find_package_handle_standard_args(wolfSSL
REQUIRED_VARS WOLFSSL_LIBRARY WOLFSSL_INCLUDE_DIR VERSION_VAR WOLFSSL_VERSION)
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