Remove some boost depedencies

CMakeLists.txt

@@ -244,8 +244,7 @@ if(SERIALBOX_TESTING_GRIDTOOLS)
   set(SERIALBOX_HAS_GRIDTOOLS 1)
 endif(SERIALBOX_TESTING_GRIDTOOLS)
 
-# If ${REQUIRED_BOOST_COMPONENTS} is empty we still need the headers
-find_package(Boost 1.54 REQUIRED)
+find_package(Boost 1.54 REQUIRED) # only Boost headers
 set(SERIALBOX_BOOST_VERSION ${Boost_VERSION})
 
 #---------------------------------------- ClangTools -----------------------------------------------

cmake/SerialboxConfig.cmake.in

@@ -33,13 +33,6 @@ set(SERIALBOX_HAS_NETCDF "@SERIALBOX_USE_NETCDF@")
 # SERIALBOX was compiled with logging support (requires Boost.Log)
 set(SERIALBOX_HAS_LOGGING "@SERIALBOX_LOGGING@")
 
-# Set Boost configuration
-set(SERIALBOX_BOOST_LIB_VERSION "@Boost_LIB_VERSION@")
-STRING(REGEX REPLACE "_" "." SERIALBOX_BOOST_VERSION ${SERIALBOX_BOOST_LIB_VERSION})
-set(SERIALBOX_BOOST_LIBRARY_DIRS "@Boost_LIBRARY_DIRS@")
-set(SERIALBOX_BOOST_INCLUDE_DIRS "@Boost_INCLUDE_DIRS@")
-set(SERIALBOX_REQUIRED_BOOST_COMPONENTS "@REQUIRED_BOOST_COMPONENTS@")
-
 #===---------------------------------------------------------------------------------------------===
 #   Helper functions used in this file
 #====--------------------------------------------------------------------------------------------===
@@ -154,30 +147,13 @@ if(NOT(DEFINED SERIALBOX_NO_EXTERNAL_LIBS))
   message( STATUS "Serialbox: find_dependency(Threads)" )
   find_dependency(Threads)
 
-  set(BOOST_LIBRARYDIR "${SERIALBOX_BOOST_LIBRARY_DIRS}")
-  set(BOOST_INCLUDEDIR "${SERIALBOX_BOOST_INCLUDE_DIRS}")
-  set(Boost_NO_SYSTEM_PATHS "ON") # Force boost to search locations specified above
-
-  message( STATUS "Serialbox: find_dependency(Boost ${SERIALBOX_BOOST_VERSION} COMPONENTS ${SERIALBOX_REQUIRED_BOOST_COMPONENTS})")
-  find_dependency(Boost
-               ${SERIALBOX_BOOST_VERSION} COMPONENTS ${SERIALBOX_REQUIRED_BOOST_COMPONENTS})
+  message( STATUS "Serialbox: find_dependency(Boost ${SERIALBOX_BOOST_VERSION})")
+  find_dependency(Boost ${SERIALBOX_BOOST_VERSION})
   if(Boost_FOUND)
     list(APPEND SERIALBOX_INCLUDE_DIRS ${Boost_INCLUDE_DIRS})
   else()
     # Give some diagnostic infos
     set(WARN_STR "Serialbox: Boost (${SERIALBOX_BOOST_VERSION}) NOT found!")
-
-    if(DEFINED Boost_LIB_VERSION)
-      string(REPLACE "_" "." FOUND_BOOST_VERSION ${Boost_LIB_VERSION})
-      list(APPEND WARN_STR " (Found Boost ${FOUND_BOOST_VERSION})")
-    endif()
-
-    list(APPEND WARN_STR "\nRequired components:")
-
-    foreach(component ${SERIALBOX_REQUIRED_BOOST_COMPONENTS})
-      list(APPEND WARN_STR "\n - ${component}")
-    endforeach()
-
     message(WARNING ${WARN_STR} "\n")
   endif()
 

docs/sphinx/Building.rst

@@ -12,7 +12,7 @@ Serialbox relies on `CMake <http://www.cmake.org/>`_ (>= 3.1), a cross-platform
 Quick start
 ===========
 
-To build Serialbox you need a C++17 toolchain, `CMake <http://www.cmake.org/>`_ and a fairly recent version of `Boost <http://www.boost.org/>`_. We use here the command-line, non-interactive CMake interface.
+To build Serialbox you need a C++17 toolchain, `CMake <http://www.cmake.org/>`_ and `Boost <http://www.boost.org/>`_ headers. We use here the command-line, non-interactive CMake interface.
 
 #. Make sure you have installed all the tools and dependencies, especially Boost and CMake. 
    See `Dependencies`_. 

docs/sphinx/C.rst

@@ -30,7 +30,7 @@ Consider the following minimalistic example, ``test.c``, which simply creates an
     serialboxSerializerDestroy(serializer);
   }
 
-To compile this sample program, you have to link against ``SerialboxC`` and the dependency libraries. The dependency libraries include the Boost libraries (filesystem, system, chrono, log, date_time, log_setup, thread, regex and atomic) as well as the NetCDF and OpenSSL libraries. However, if you choose to link dynamically (i.e against ``libSerialboxC.so``), the dependencies will be resolved automatically:
+To compile this sample program, you have to link against ``SerialboxC`` and the dependency libraries. The dependency libraries include the NetCDF and OpenSSL libraries. However, if you choose to link dynamically (i.e against ``libSerialboxC.so``), the dependencies will be resolved automatically:
 
 .. code-block:: console
 
@@ -39,4 +39,3 @@ To compile this sample program, you have to link against ``SerialboxC`` and the
    $ export LD_LIBRARY_PATH=$SERIALBOX_INSTALL_PATH/lib; ./test 
 
 In general, it is **strongly** advised to use the CMake find_package-module of Serialbox which takes care of linking against the correct libraries (see :doc:`Usage`).
-

docs/sphinx/Fortran.rst

@@ -28,7 +28,6 @@ The CMake build system of Serialbox takes care of setting the correct flags for
 Using the Fortran Interface
 ===========================
 
-To use the Fortran interface in your project, you need to link against ``libSerialboxFortran`` and the C++ standard library used to compile the code (e.g ``libstdc++`` for GNU gcc) as well as the dependency libraries (Boost and possibly NetCDF and OpenSSL). As this can be tedious, Serialbox provides a CMake find_package module (:ref:`FindSerialbox`) to handle this task. 
+To use the Fortran interface in your project, you need to link against ``libSerialboxFortran`` and the C++ standard library used to compile the code (e.g ``libstdc++`` for GNU gcc) as well as the dependency libraries (possibly NetCDF and OpenSSL). As this can be tedious, Serialbox provides a CMake find_package module (:ref:`FindSerialbox`) to handle this task. 
 
 To use the preprocessing script ``pp_ser.py``, take a look at the CMake module :ref:`SerialboxTooling`. For a self-contained example see ``examples/fortran/perturbation``.
-

docs/sphinx/Usage.rst

@@ -32,9 +32,8 @@ Example to find Serialbox headers and `shared` libraries for the C, C++ and Fort
   set(SERIALBOX_USE_SHARED_LIBS ON)
   find_package(Serialbox REQUIRED COMPONENTS C++ C Fortran)
 
-The Serialbox module will look for the `exact` boost version used during compilation and append 
-the necessary libraries to the ``SERIALBOX_[LANGUAGE]_LIBRARIES`` variable. If Serialbox was 
-compiled with OpenSSL and/or NetCDF support, the necessary libraries will be appended as well. 
+If Serialbox was compiled with OpenSSL and/or NetCDF support,
+the necessary libraries will be appended to the ``SERIALBOX_[LANGUAGE]_LIBRARIES``. 
 
 Variables used by this module, they can change the default behaviour and need to be set before 
 calling find_package::
@@ -61,7 +60,6 @@ Variables defined by this module::
   SERIALBOX_FORTRAN_LIBRARIES     - The Fortran libraries of Serialbox (libSerialboxFortran) and 
                                     possibly the external libraries.
   SERIALBOX_PPSER                 - Path to the pp_ser.py script.
-  SERIALBOX_BOOST_VERSION         - Boost version used during compilation.
   SERIALBOX_HAS_OPENSSL           - Serialbox was compiled with OpenSSL support.
   SERIALBOX_HAS_NETCDF            - Serialbox was compiled with NetCDF support.
 
@@ -78,4 +76,3 @@ Function arguments::
 
   SOURCES       - Sources to preprocess
   OUTPUT_DIR    - Output directory of the the source files. If nothing is specified ${PROJECT_BINARY_DIR}/pp is used. 
-

examples/CMakeLists.txt

@@ -23,7 +23,6 @@ function(serialbox_add_gridtools_example NAME)
                         SerialboxStatic 
                         GridTools::gridtools
                         ${CMAKE_THREAD_LIBS_INIT})
-  target_compile_definitions(${NAME} PUBLIC BOOST_NO_CXX11_DECLTYPE)
   install(TARGETS ${NAME} DESTINATION bin)
   if(SERIALBOX_TESTING)
     serialbox_add_test(TARGET ${NAME} EXECUTABLE ${CMAKE_CURRENT_BINARY_DIR}/${NAME})
@@ -53,7 +52,3 @@ endif()
 if(SERIALBOX_ENABLE_PYTHON)
   add_subdirectory(python)
 endif()
-
-if(SERIALBOX_TESTING_GRIDTOOLS)
-  add_subdirectory(gridtools)
-endif()