Index: CMakeLists.txt
--- CMakeLists.txt.orig
+++ CMakeLists.txt
@@ -166,7 +166,7 @@ ENDIF()
 
 IF(WITH_BOOST_THREAD)
     set(WITH_BOOST "ON")
-    set(WITH_BOOST_COMPONENTS ${WITH_BOOST_COMPONENTS} thread system date_time chrono)
+    set(WITH_BOOST_COMPONENTS ${WITH_BOOST_COMPONENTS} thread date_time chrono)
     set(BOOST_MINIMUM_VERSION "1.55.0")
 ENDIF()
 
@@ -322,32 +322,6 @@ INSTALL(DIRECTORY ${PROJECT_SOURCE_DIR}/include/vigra
 #
 ##################################################
 INCLUDE(CPackConfig)
-
-##################################################
-#
-#     add target vigra-$version-src.tar.gz
-#
-##################################################
-
-find_program(GIT_EXECUTABLE
-              NAMES git git.exe git.cmd
-              HINTS $ENV{ProgramFiles}/Git/bin
-              DOC "git command line client")
-
-CONFIGURE_FILE(${PROJECT_SOURCE_DIR}/config/package-src.cmake.in
-                ${PROJECT_BINARY_DIR}/package-src.cmake
-                @ONLY IMMEDIATE)
-
-add_custom_target(PACKAGE_SRC_TAR
-                   COMMAND ${CMAKE_COMMAND} -P package-src.cmake
-                   WORKING_DIRECTORY "${PROJECT_BINARY_DIR}"
-                   COMMENT "Creating ${PROJECT_BINARY_DIR}/vigra-${vigra_version}-src.tar.gz")
-
-ADD_DEPENDENCIES(PACKAGE_SRC_TAR check)
-ADD_DEPENDENCIES(PACKAGE_SRC_TAR doc_cpp)
-IF(WITH_VIGRANUMPY AND PYTHON_SPHINX)
-    ADD_DEPENDENCIES(PACKAGE_SRC_TAR doc_python)
-ENDIF()
 
 ##################################################
 #
