External_libsodium.cmake.in

cmake_minimum_required(VERSION 2.8.2)

project(libsodium-download NONE)
include(ExternalProject)

set(EP_SOURCE_DIR ${CMAKE_BINARY_DIR}/libsodium-src)
set(EP_BINARY_DIR ${CMAKE_BINARY_DIR}/libsodium-src)
set(EP_INSTALL_DIR ${CMAKE_INSTALL_PREFIX})

set(libsodium_TAG 1.0.18)
set(libsodium_SHA256 6f504490b342a4f8a4c4a02fc9b866cbef8622d5df4e5452b46be121e46636c1)
set(libsodium_URL "https://download.libsodium.org/libsodium/releases/libsodium-${libsodium_TAG}.tar.gz")

include(ProcessorCount)
ProcessorCount(CPU_COUNT)
if(CPU_COUNT EQUAL 0)
  set(CPU_COUNT 2)
endif()

if (WIN32)
else ()
    set(LIBSODIUM_CONFIG_COMMAND CFLAGS=-fPIC ./configure --prefix=${EP_INSTALL_DIR})
    set(LIBSODIUM_BUILD_COMMAND make -j ${CPU_COUNT})
    set(LIBSODIUM_INSTALL_COMMAND make install)
endif ()

ExternalProject_Add(libsodium
    URL ${libsodium_URL}
    URL_HASH SHA256=${libsodium_SHA256}
    SOURCE_DIR ${EP_SOURCE_DIR}
    BINARY_DIR ${EP_BINARY_DIR}
    INSTALL_DIR ${EP_INSTALL_DIR}
    PATCH_COMMAND ${LIBSODIUM_PATCH_COMMAND}
    CONFIGURE_COMMAND ${LIBSODIUM_CONFIG_COMMAND}
    BUILD_COMMAND ${LIBSODIUM_BUILD_COMMAND}
    INSTALL_COMMAND ${LIBSODIUM_INSTALL_COMMAND}
)