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# Written in 2016 by Henrik Steffen Gaßmann <henrik@gassmann.onl>
#
# To the extent possible under law, the author(s) have dedicated all
# copyright and related and neighboring rights to this software to the
# public domain worldwide. This software is distributed without any warranty.
#
# You should have received a copy of the CC0 Public Domain Dedication
# along with this software. If not, see
#
# http://creativecommons.org/publicdomain/zero/1.0/
#
########################################################################
# Tries to find the local libsodium installation.
#
# On Windows the sodium_DIR environment variable is used as a default
# hint which can be overridden by setting the corresponding cmake variable.
#
# Once done the following variables will be defined:
#
# sodium_FOUND
# sodium_INCLUDE_DIR
# sodium_LIBRARY_DEBUG
# sodium_LIBRARY_RELEASE
#
#
# Furthermore an imported "sodium" target is created.
#
if (CMAKE_C_COMPILER_ID STREQUAL "GNU"
OR CMAKE_C_COMPILER_ID STREQUAL "Clang")
set(_GCC_COMPATIBLE 1)
endif()
# static library option
if (NOT DEFINED sodium_USE_STATIC_LIBS)
option(sodium_USE_STATIC_LIBS "enable to statically link against sodium" OFF)
endif()
if(NOT (sodium_USE_STATIC_LIBS EQUAL sodium_USE_STATIC_LIBS_LAST))
unset(sodium_LIBRARY CACHE)
unset(sodium_LIBRARY_DEBUG CACHE)
unset(sodium_LIBRARY_RELEASE CACHE)
unset(sodium_DLL_DEBUG CACHE)
unset(sodium_DLL_RELEASE CACHE)
set(sodium_USE_STATIC_LIBS_LAST ${sodium_USE_STATIC_LIBS} CACHE INTERNAL "internal change tracking variable")
endif()
########################################################################
# UNIX
if (UNIX)
# import pkg-config
find_package(PkgConfig QUIET)
if (PKG_CONFIG_FOUND)
pkg_check_modules(sodium_PKG QUIET libsodium)
endif()
if(sodium_USE_STATIC_LIBS)
if (sodium_PKG_STATIC_LIBRARIES)
foreach(_libname ${sodium_PKG_STATIC_LIBRARIES})
if (NOT _libname MATCHES "^lib.*\\.a$") # ignore strings already ending with .a
list(INSERT sodium_PKG_STATIC_LIBRARIES 0 "lib${_libname}.a")
endif()
endforeach()
list(REMOVE_DUPLICATES sodium_PKG_STATIC_LIBRARIES)
else()
# if pkgconfig for libsodium doesn't provide
# static lib info, then override PKG_STATIC here..
set(sodium_PKG_STATIC_LIBRARIES libsodium.a)
endif()
set(XPREFIX sodium_PKG_STATIC)
else()
if (sodium_PKG_LIBRARIES STREQUAL "")
set(sodium_PKG_LIBRARIES sodium)
endif()
set(XPREFIX sodium_PKG)
endif()
find_path(sodium_INCLUDE_DIR sodium.h
HINTS ${${XPREFIX}_INCLUDE_DIRS}
)
find_library(sodium_LIBRARY_DEBUG NAMES ${${XPREFIX}_LIBRARIES}
HINTS ${${XPREFIX}_LIBRARY_DIRS}
)
find_library(sodium_LIBRARY_RELEASE NAMES ${${XPREFIX}_LIBRARIES}
HINTS ${${XPREFIX}_LIBRARY_DIRS}
)
########################################################################
# Windows
elseif (WIN32)
set(sodium_DIR "$ENV{sodium_DIR}" CACHE FILEPATH "sodium install directory")
mark_as_advanced(sodium_DIR)
find_path(sodium_INCLUDE_DIR sodium.h
HINTS ${sodium_DIR}
PATH_SUFFIXES include
)
if (MSVC)
# detect target architecture
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/arch.c" [=[
#if defined _M_IX86
#error ARCH_VALUE x86_32
#elif defined _M_X64
#error ARCH_VALUE x86_64
#endif
#error ARCH_VALUE unknown
]=])
try_compile(_UNUSED_VAR "${CMAKE_CURRENT_BINARY_DIR}" "${CMAKE_CURRENT_BINARY_DIR}/arch.c"
OUTPUT_VARIABLE _COMPILATION_LOG
)
string(REGEX REPLACE ".*ARCH_VALUE ([a-zA-Z0-9_]+).*" "\\1" _TARGET_ARCH "${_COMPILATION_LOG}")
# construct library path
if (_TARGET_ARCH STREQUAL "x86_32")
string(APPEND _PLATFORM_PATH "Win32")
elseif(_TARGET_ARCH STREQUAL "x86_64")
string(APPEND _PLATFORM_PATH "x64")
else()
message(FATAL_ERROR "the ${_TARGET_ARCH} architecture is not supported by Findsodium.cmake.")
endif()
string(APPEND _PLATFORM_PATH "/$$CONFIG$$")
if (MSVC_VERSION LESS 1900)
math(EXPR _VS_VERSION "${MSVC_VERSION} / 10 - 60")
else()
math(EXPR _VS_VERSION "${MSVC_VERSION} / 10 - 50")
endif()
string(APPEND _PLATFORM_PATH "/v${_VS_VERSION}")
if (sodium_USE_STATIC_LIBS)
string(APPEND _PLATFORM_PATH "/static")
else()
string(APPEND _PLATFORM_PATH "/dynamic")
endif()
string(REPLACE "$$CONFIG$$" "Debug" _DEBUG_PATH_SUFFIX "${_PLATFORM_PATH}")
string(REPLACE "$$CONFIG$$" "Release" _RELEASE_PATH_SUFFIX "${_PLATFORM_PATH}")
find_library(sodium_LIBRARY_DEBUG libsodium.lib
HINTS ${sodium_DIR}
PATH_SUFFIXES ${_DEBUG_PATH_SUFFIX}
)
find_library(sodium_LIBRARY_RELEASE libsodium.lib
HINTS ${sodium_DIR}
PATH_SUFFIXES ${_RELEASE_PATH_SUFFIX}
)
if (NOT sodium_USE_STATIC_LIBS)
set(CMAKE_FIND_LIBRARY_SUFFIXES_BCK ${CMAKE_FIND_LIBRARY_SUFFIXES})
set(CMAKE_FIND_LIBRARY_SUFFIXES ".dll")
find_library(sodium_DLL_DEBUG libsodium
HINTS ${sodium_DIR}
PATH_SUFFIXES ${_DEBUG_PATH_SUFFIX}
)
find_library(sodium_DLL_RELEASE libsodium
HINTS ${sodium_DIR}
PATH_SUFFIXES ${_RELEASE_PATH_SUFFIX}
)
set(CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES_BCK})
endif()
elseif(_GCC_COMPATIBLE)
if (sodium_USE_STATIC_LIBS)
find_library(sodium_LIBRARY_DEBUG libsodium.a
HINTS ${sodium_DIR}
PATH_SUFFIXES lib
)
find_library(sodium_LIBRARY_RELEASE libsodium.a
HINTS ${sodium_DIR}
PATH_SUFFIXES lib
)
else()
find_library(sodium_LIBRARY_DEBUG libsodium.dll.a
HINTS ${sodium_DIR}
PATH_SUFFIXES lib
)
find_library(sodium_LIBRARY_RELEASE libsodium.dll.a
HINTS ${sodium_DIR}
PATH_SUFFIXES lib
)
file(GLOB _DLL
LIST_DIRECTORIES false
RELATIVE "${sodium_DIR}/bin"
"${sodium_DIR}/bin/libsodium*.dll"
)
find_library(sodium_DLL_DEBUG ${_DLL} libsodium
HINTS ${sodium_DIR}
PATH_SUFFIXES bin
)
find_library(sodium_DLL_RELEASE ${_DLL} libsodium
HINTS ${sodium_DIR}
PATH_SUFFIXES bin
)
endif()
else()
message(FATAL_ERROR "this platform is not supported by FindSodium.cmake")
endif()
########################################################################
# unsupported
else()
message(FATAL_ERROR "this platform is not supported by FindSodium.cmake")
endif()
########################################################################
# common stuff
# extract sodium version
if (sodium_INCLUDE_DIR)
set(_VERSION_HEADER "${_INCLUDE_DIR}/sodium/version.h")
if (EXISTS _VERSION_HEADER)
file(READ "${_VERSION_HEADER}" _VERSION_HEADER_CONTENT)
string(REGEX REPLACE ".*#[ \t]*define[ \t]*SODIUM_VERSION_STRING[ \t]*\"([^\n]*)\".*" "\\1"
sodium_VERSION "${_VERSION_HEADER_CONTENT}")
set(sodium_VERSION "${sodium_VERSION}" PARENT_SCOPE)
endif()
endif()
# communicate results
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(sodium
REQUIRED_VARS
sodium_LIBRARY_RELEASE
sodium_LIBRARY_DEBUG
sodium_INCLUDE_DIR
VERSION_VAR
sodium_VERSION
)
# mark file paths as advanced
mark_as_advanced(sodium_INCLUDE_DIR)
mark_as_advanced(sodium_LIBRARY_DEBUG)
mark_as_advanced(sodium_LIBRARY_RELEASE)
if (WIN32)
mark_as_advanced(sodium_DLL_DEBUG)
mark_as_advanced(sodium_DLL_RELEASE)
endif()
# create imported target
if(sodium_USE_STATIC_LIBS)
set(_LIB_TYPE STATIC)
else()
set(_LIB_TYPE SHARED)
endif()
add_library(sodium ${_LIB_TYPE} IMPORTED)
set_target_properties(sodium PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${sodium_INCLUDE_DIR}"
IMPORTED_LINK_INTERFACE_LANGUAGES "C"
)
if (sodium_USE_STATIC_LIBS)
set_target_properties(sodium PROPERTIES
INTERFACE_COMPILE_DEFINITIONS "SODIUM_STATIC"
IMPORTED_LOCATION "${sodium_LIBRARY_RELEASE}"
IMPORTED_LOCATION_DEBUG "${sodium_LIBRARY_DEBUG}"
)
else()
if (UNIX)
set_target_properties(sodium PROPERTIES
IMPORTED_LOCATION "${sodium_LIBRARY_RELEASE}"
IMPORTED_LOCATION_DEBUG "${sodium_LIBRARY_DEBUG}"
)
elseif (WIN32)
set_target_properties(sodium PROPERTIES
IMPORTED_IMPLIB "${sodium_LIBRARY_RELEASE}"
IMPORTED_IMPLIB_DEBUG "${sodium_LIBRARY_DEBUG}"
)
if (NOT (sodium_DLL_DEBUG MATCHES ".*-NOTFOUND"))
set_target_properties(sodium PROPERTIES
IMPORTED_LOCATION_DEBUG "${sodium_DLL_DEBUG}"
)
endif()
if (NOT (sodium_DLL_RELEASE MATCHES ".*-NOTFOUND"))
set_target_properties(sodium PROPERTIES
IMPORTED_LOCATION_RELWITHDEBINFO "${sodium_DLL_RELEASE}"
IMPORTED_LOCATION_MINSIZEREL "${sodium_DLL_RELEASE}"
IMPORTED_LOCATION_RELEASE "${sodium_DLL_RELEASE}"
)
endif()
endif()
endif()