move to new build system

cmake/libraries/libsodium.cmake

@@ -0,0 +1,47 @@
+if(PROJECT_ENABLE_LIBSODIUM)
+  if(PROJECT_BUILD)
+    pkg_check_modules(SODIUM libsodium=${LIBSODIUM_VERSION} REQUIRED)
+
+    add_definitions(-DPROJECT_ENABLE_LIBSODIUM)
+
+    include_directories(BEFORE SYSTEM
+      ${SODIUM_INCLUDE_DIRS}
+    )
+
+    link_libraries(
+      ${SODIUM_LINK_LIBRARIES}
+    )
+  elseif(NOT PROJECT_IS_MINGW OR CMAKE_HOST_WIN32)
+    if(PROJECT_IS_MINGW)
+      set(LIBSODIUM_TYPE mingw64)
+    else()
+      set(LIBSODIUM_TYPE linux)
+    endif()
+
+    if(PROJECT_BUILD_SHARED_LIBS)
+      set(LIBSODIUM_ENABLE_SHARED yes)
+    else()
+      set(LIBSODIUM_ENABLE_SHARED no)
+    endif()
+
+    ExternalProject_Add(libsodium_project
+      PREFIX external
+      URL ${PROJECT_3RD_PARTY_DIR}/libsodium-${LIBSODIUM_VERSION}-RELEASE.tar.gz
+      URL_HASH SHA256=4fb996013283f482f46a457c8ff2c1495e797788e78e8ec56b1aa1b19253bf75
+      BUILD_IN_SOURCE 1
+      LIST_SEPARATOR |
+      CONFIGURE_COMMAND ${PROJECT_3RD_PARTY_DIR}/libsodium_configure.sh 
+        ${LIBSODIUM_TYPE}
+        ${PROJECT_MARCH}
+        ${PROJECT_EXTERNAL_BUILD_ROOT}
+        ${LIBSODIUM_ENABLE_SHARED}
+      BUILD_COMMAND make -j1
+      INSTALL_COMMAND make install
+    )
+
+    set(PROJECT_DEPENDENCIES
+      ${PROJECT_DEPENDENCIES}
+      libsodium_project
+    )
+  endif()
+endif()