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| -rw-r--r-- | cmake/Modules/FindBotan.cmake | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/cmake/Modules/FindBotan.cmake b/cmake/Modules/FindBotan.cmake new file mode 100644 index 0000000..4362b54 --- /dev/null +++ b/cmake/Modules/FindBotan.cmake @@ -0,0 +1,168 @@ +# Copyright (c) 2018-2020 Ribose Inc. +# All rights reserved. +# +# 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 above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# ``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 COPYRIGHT HOLDERS OR CONTRIBUTORS +# 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. + +#.rst: +# FindBotan +# ----------- +# +# Find the botan-2 or botan-3 library. +# +# IMPORTED Targets +# ^^^^^^^^^^^^^^^^ +# +# This module defines :prop_tgt:`IMPORTED` targets: +# +# ``Botan::Botan`` +# The botan-2 or botan-3 library, if found. +# +# Result variables +# ^^^^^^^^^^^^^^^^ +# +# This module defines the following variables: +# +# :: +# +# BOTAN_FOUND - true if the headers and library were found +# BOTAN_INCLUDE_DIRS - where to find headers +# BOTAN_LIBRARIES - list of libraries to link +# BOTAN_VERSION - library version that was found, if any +# +# Hints +# ^^^^^ +# +# These variables may be set to control search behaviour: +# +# ``BOTAN_ROOT_DIR`` +# Set to the root directory of the Botan installation. +# + +# use pkg-config to get the directories and then use these values +# in the find_path() and find_library() calls + +find_package(PkgConfig QUIET) + +# Search for the version 2 first unless version 3 requested +if(NOT "${Botan_FIND_VERSION_MAJOR}" EQUAL "3") + pkg_check_modules(PC_BOTAN QUIET botan-2) + set(_suffixes "botan-2" "botan-3") + set(_names "botan-2" "libbotan-2" "botan-3" "libbotan-3") +else() + set(_suffixes "botan-3") + set(_names "botan-3" "libbotan-3") +endif() +if(NOT PC_BOTAN_FOUND) + pkg_check_modules(PC_BOTAN QUIET botan-3) +endif() + +if(DEFINED BOTAN_ROOT_DIR) + set(_hints_include "${BOTAN_ROOT_DIR}/include") + set(_hints_lib "${BOTAN_ROOT_DIR}/lib") +endif() +if(DEFINED ENV{BOTAN_ROOT_DIR}) + list(APPEND _hints_include "$ENV{BOTAN_ROOT_DIR}/include") + list(APPEND _hints_lib "$ENV{BOTAN_ROOT_DIR}/lib") +endif() + +# Append PC_* stuff only if BOTAN_ROOT_DIR is not specified +if(NOT _hints_include) + list(APPEND _hints_include ${PC_BOTAN_INCLUDEDIR} ${PC_BOTAN_INCLUDE_DIRS}) + list(APPEND _hints_lib ${PC_BOTAN_LIBDIR} ${PC_BOTAN_LIBRARY_DIRS}) +else() + set(_no_def_path "NO_DEFAULT_PATH") +endif() + +# find the headers +find_path(BOTAN_INCLUDE_DIR + NAMES botan/version.h + HINTS + ${_hints_include} + PATH_SUFFIXES ${_suffixes} + ${_no_def_path} +) + +# find the library +if(MSVC) + find_library(BOTAN_LIBRARY + NAMES botan ${_names} + HINTS + ${_hints_lib} + ${_no_def_path} + ) +else() + find_library(BOTAN_LIBRARY + NAMES + ${_names} + HINTS + ${_hints_lib} + ${_no_def_path} + ) +endif() + +# determine the version +if(BOTAN_INCLUDE_DIR AND EXISTS "${BOTAN_INCLUDE_DIR}/botan/build.h") + file(STRINGS "${BOTAN_INCLUDE_DIR}/botan/build.h" botan_version_str + REGEX "^#define[\t ]+(BOTAN_VERSION_[A-Z]+)[\t ]+[0-9]+") + + string(REGEX REPLACE ".*#define[\t ]+BOTAN_VERSION_MAJOR[\t ]+([0-9]+).*" + "\\1" _botan_version_major "${botan_version_str}") + string(REGEX REPLACE ".*#define[\t ]+BOTAN_VERSION_MINOR[\t ]+([0-9]+).*" + "\\1" _botan_version_minor "${botan_version_str}") + string(REGEX REPLACE ".*#define[\t ]+BOTAN_VERSION_PATCH[\t ]+([0-9]+).*" + "\\1" _botan_version_patch "${botan_version_str}") + set(BOTAN_VERSION "${_botan_version_major}.${_botan_version_minor}.${_botan_version_patch}" + CACHE INTERNAL "The version of Botan which was detected") +endif() + +include(FindPackageHandleStandardArgs) +find_package_handle_standard_args(Botan + REQUIRED_VARS BOTAN_LIBRARY BOTAN_INCLUDE_DIR + VERSION_VAR BOTAN_VERSION +) + +if (BOTAN_FOUND) + set(BOTAN_INCLUDE_DIRS ${BOTAN_INCLUDE_DIR} ${PC_BOTAN_INCLUDE_DIRS}) + set(BOTAN_LIBRARIES ${BOTAN_LIBRARY}) +endif() + +if (BOTAN_FOUND AND NOT TARGET Botan::Botan) + # create the new library target + add_library(Botan::Botan UNKNOWN IMPORTED) + # set the required include dirs for the target + if (BOTAN_INCLUDE_DIRS) + set_target_properties(Botan::Botan + PROPERTIES + INTERFACE_INCLUDE_DIRECTORIES "${BOTAN_INCLUDE_DIRS}" + ) + endif() + # set the required libraries for the target + if (EXISTS "${BOTAN_LIBRARY}") + set_target_properties(Botan::Botan + PROPERTIES + IMPORTED_LINK_INTERFACE_LANGUAGES "C" + IMPORTED_LOCATION "${BOTAN_LIBRARY}" + ) + endif() +endif() + +mark_as_advanced(BOTAN_INCLUDE_DIR BOTAN_LIBRARY) |