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libssh/cmake/Modules/FindGCrypt.cmake
2025-06-23 13:06:11 +02:00

119 lines
3.8 KiB
CMake

# - Try to find GCrypt
# Once done this will define
#
# GCRYPT_FOUND - system has GCrypt
# GCRYPT_INCLUDE_DIRS - the GCrypt include directory
# GCRYPT_LIBRARIES - Link these to use GCrypt
# GCRYPT_DEFINITIONS - Compiler switches required for using GCrypt
#
#=============================================================================
# Copyright (c) 2009-2012 Andreas Schneider <asn@cryptomilk.org>
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
#
set(_GCRYPT_ROOT_HINTS
$ENV{GCRYTPT_ROOT_DIR}
${GCRYPT_ROOT_DIR})
set(_GCRYPT_ROOT_PATHS
"$ENV{PROGRAMFILES}/libgcrypt")
set(_GCRYPT_ROOT_HINTS_AND_PATHS
HINTS ${_GCRYPT_ROOT_HINTS}
PATHS ${_GCRYPT_ROOT_PATHS})
find_path(GCRYPT_INCLUDE_DIR
NAMES
gcrypt.h
HINTS
${_GCRYPT_ROOT_HINTS_AND_PATHS}
PATH_SUFFIXES
include
)
find_path(GCRYPT_ERROR_INCLUDE_DIR
NAMES
gpg-error.h
HINTS
${_GCRYPT_ROOT_HINTS_AND_PATHS}
PATH_SUFFIXES
include
)
find_library(GCRYPT_LIBRARY
NAMES
gcrypt
gcrypt11
libgcrypt-11
HINTS
${_GCRYPT_ROOT_HINTS_AND_PATHS}
PATH_SUFFIXES
lib
)
find_library(GCRYPT_ERROR_LIBRARY
NAMES
gpg-error
libgpg-error-0
libgpg-error6-0
HINTS
${_GCRYPT_ROOT_HINTS_AND_PATHS}
PATH_SUFFIXES
lib
)
set(GCRYPT_LIBRARIES ${GCRYPT_ERROR_LIBRARY} ${GCRYPT_LIBRARY})
if (GCRYPT_INCLUDE_DIR)
file(STRINGS "${GCRYPT_INCLUDE_DIR}/gcrypt.h" _gcrypt_version_str REGEX "^#define GCRYPT_VERSION \"[0-9]+\\.[0-9]+\\.[0-9]")
string(REGEX REPLACE "^.*GCRYPT_VERSION.*([0-9]+\\.[0-9]+\\.[0-9]+).*" "\\1" GCRYPT_VERSION "${_gcrypt_version_str}")
endif (GCRYPT_INCLUDE_DIR)
include(FindPackageHandleStandardArgs)
if (GCRYPT_VERSION)
find_package_handle_standard_args(GCrypt
REQUIRED_VARS
GCRYPT_INCLUDE_DIR
GCRYPT_LIBRARIES
VERSION_VAR
GCRYPT_VERSION
FAIL_MESSAGE
"Could NOT find GCrypt, try to set the path to GCrypt root folder in the system variable GCRYPT_ROOT_DIR"
)
else (GCRYPT_VERSION)
find_package_handle_standard_args(GCrypt
"Could NOT find GCrypt, try to set the path to GCrypt root folder in the system variable GCRYPT_ROOT_DIR"
GCRYPT_INCLUDE_DIR
GCRYPT_LIBRARIES)
endif (GCRYPT_VERSION)
# show the GCRYPT_INCLUDE_DIRS, GCRYPT_LIBRARIES and GCRYPT_ERROR_INCLUDE_DIR variables only in the advanced view
mark_as_advanced(GCRYPT_INCLUDE_DIR GCRYPT_ERROR_INCLUDE_DIR GCRYPT_LIBRARIES)
if(GCRYPT_FOUND)
if(NOT TARGET libgcrypt::libgcrypt)
add_library(libgcrypt::libgcrypt UNKNOWN IMPORTED)
set_target_properties(libgcrypt::libgcrypt PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${GCRYPT_INCLUDE_DIR}"
INTERFACE_LINK_LIBRARIES libgcrypt::libgcrypt
IMPORTED_LINK_INTERFACE_LANGUAGES "C"
IMPORTED_LOCATION "${GCRYPT_LIBRARY}")
endif()
if(NOT TARGET libgpg-error::libgpg-error)
add_library(libgpg-error::libgpg-error UNKNOWN IMPORTED)
set_target_properties(libgpg-error::libgpg-error PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${GCRYPT_ERROR_INCLUDE_DIR}"
INTERFACE_LINK_LIBRARIES libgpg-error::libgpg-error
IMPORTED_LINK_INTERFACE_LANGUAGES "C"
IMPORTED_LOCATION "${GCRYPT_ERROR_LIBRARY}")
endif()
endif()