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#.rst
# FindLibGcrypt
# -------------
#
# Finds the Libgcrypt library.
#
# This will define the following variables:
#
# ``LIBGCRYPT_FOUND``
# True if the requested version of gcrypt was found
# ``LIBGCRYPT_VERSION``
# The version of gcrypt that was found
# ``LIBGCRYPT_INCLUDE_DIRS``
# The gcrypt include directories
# ``LIBGCRYPT_LIBRARIES``
# The linker libraries needed to use the gcrypt library
# Copyright 2014 Nicolás Alvarez <nicolas.alvarez@gmail.com>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. The name of the author may not be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
find_program(LIBGCRYPTCONFIG_SCRIPT NAMES libgcrypt-config)
if(LIBGCRYPTCONFIG_SCRIPT)
execute_process(COMMAND "${LIBGCRYPTCONFIG_SCRIPT}" --prefix OUTPUT_VARIABLE PREFIX)
set(LIBGCRYPT_LIB_HINT "${PREFIX}/lib")
set(LIBGCRYPT_INCLUDE_HINT "${PREFIX}/include")
endif()
find_library(LIBGCRYPT_LIBRARY
NAMES gcrypt
HINTS ${LIBGCRYPT_LIB_HINT}
)
find_path(LIBGCRYPT_INCLUDE_DIR
NAMES gcrypt.h
HINTS ${LIBGCRYPT_INCLUDE_HINT}
)
if(LIBGCRYPT_INCLUDE_DIR)
file(STRINGS ${LIBGCRYPT_INCLUDE_DIR}/gcrypt.h GCRYPT_H REGEX "^#define GCRYPT_VERSION ")
string(REGEX REPLACE "^#define GCRYPT_VERSION \"(.*)\".*$" "\\1" LIBGCRYPT_VERSION "${GCRYPT_H}")
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(LibGcrypt
REQUIRED_VARS LIBGCRYPT_LIBRARY LIBGCRYPT_INCLUDE_DIR
VERSION_VAR LIBGCRYPT_VERSION
)
if(LIBGCRYPT_FOUND)
set(LIBGCRYPT_LIBRARIES ${LIBGCRYPT_LIBRARY})
set(LIBGCRYPT_INCLUDE_DIRS ${LIBGCRYPT_INCLUDE_DIR})
endif()
mark_as_advanced(LIBGCRYPT_LIBRARY LIBGCRYPT_INCLUDE_DIR)
include(FeatureSummary)
set_package_properties(LibGcrypt PROPERTIES
DESCRIPTION "A general purpose cryptographic library based on the code from GnuPG."
URL "http://www.gnu.org/software/libgcrypt/"
)
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