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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#[=======================================================================[.rst:
FindGnuTLS
----------
Find the GNU Transport Layer Security library (gnutls)
IMPORTED Targets
^^^^^^^^^^^^^^^^
.. versionadded:: 3.16
This module defines :prop_tgt:`IMPORTED` target ``GnuTLS::GnuTLS``, if
gnutls has been found.
Result Variables
^^^^^^^^^^^^^^^^
``GNUTLS_FOUND``
System has gnutls
``GNUTLS_INCLUDE_DIR``
The gnutls include directory
``GNUTLS_LIBRARIES``
The libraries needed to use gnutls
``GNUTLS_DEFINITIONS``
Compiler switches required for using gnutls
``GNUTLS_VERSION``
version of gnutls.
#]=======================================================================]
# Note that this doesn't try to find the gnutls-extra package.
if (GNUTLS_INCLUDE_DIR AND GNUTLS_LIBRARY)
# in cache already
set(gnutls_FIND_QUIETLY TRUE)
endif ()
if (NOT WIN32)
# try using pkg-config to get the directories and then use these values
# in the find_path() and find_library() calls
# also fills in GNUTLS_DEFINITIONS, although that isn't normally useful
find_package(PkgConfig QUIET)
PKG_CHECK_MODULES(PC_GNUTLS QUIET gnutls)
set(GNUTLS_DEFINITIONS ${PC_GNUTLS_CFLAGS_OTHER})
set(GNUTLS_VERSION ${PC_GNUTLS_VERSION})
# keep for backward compatibility
set(GNUTLS_VERSION_STRING ${PC_GNUTLS_VERSION})
endif ()
find_path(GNUTLS_INCLUDE_DIR gnutls/gnutls.h
HINTS
${PC_GNUTLS_INCLUDEDIR}
${PC_GNUTLS_INCLUDE_DIRS}
)
find_library(GNUTLS_LIBRARY NAMES gnutls libgnutls
HINTS
${PC_GNUTLS_LIBDIR}
${PC_GNUTLS_LIBRARY_DIRS}
)
mark_as_advanced(GNUTLS_INCLUDE_DIR GNUTLS_LIBRARY)
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(GnuTLS
REQUIRED_VARS GNUTLS_LIBRARY GNUTLS_INCLUDE_DIR
VERSION_VAR GNUTLS_VERSION_STRING)
if(GNUTLS_FOUND)
set(GNUTLS_LIBRARIES ${GNUTLS_LIBRARY})
set(GNUTLS_INCLUDE_DIRS ${GNUTLS_INCLUDE_DIR})
if(NOT TARGET GnuTLS::GnuTLS)
add_library(GnuTLS::GnuTLS UNKNOWN IMPORTED)
set_target_properties(GnuTLS::GnuTLS PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${GNUTLS_INCLUDE_DIRS}"
INTERFACE_COMPILE_DEFINITIONS "${GNUTLS_DEFINITIONS}"
IMPORTED_LINK_INTERFACE_LANGUAGES "C"
IMPORTED_LOCATION "${GNUTLS_LIBRARIES}")
endif()
endif()
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