!-----------------------------------------------------------------------------
! Package     : GaudiPluginService
! Responsible : Marco Clemencic
! Purpose     : Provide a generic plugin service.
! Commit Id   : $Format:%H$
!-----------------------------------------------------------------------------

================================ Gaudi v28r3 =================================


================================ Gaudi v28r2 =================================


================================ Gaudi v28r1 =================================


================================ Gaudi v28r0 =================================

! 2016-10-19 - Marco Clemencic (commit e2c1f4a)

 - fixes and improvements for ROOT 6.08 and gcc 6.1

   * added option to use or not GCC old C++11 ABI (off by default)
   * added some missing #include for the usual headers clean up in gcc
   * fixed a few places where old GCC behaviour was assumed
   * fixed default C++ standard version for clang >= 3.7
   * fixed GAUDI-1242

    See merge request !187

! 2016-10-12 - Marco Clemencic (commit b5e05a1)

 - improved handling of package version in CMake configuration

   use project version if a package version is not provided
    See GAUDI-1215.
    See merge request !175

! 2016-10-01 - Marco Clemencic (commit 99b1001)

 - enable missing override warnings (gcc >= 5.1)

   Fixes GAUDI-1241
    See merge request !192

! 2016-08-19 - Marco Clemencic (commit f3050c3)

 - Fix compile time warnings

   fixed/hidden all warnings in GCC builds
    See merge request !189

! 2016-07-25 - Marco Clemencic (commit e3d4b07)

 - remove CMT configuration and related files

   * removed CMT configuration files
   * adapted scripts not to use CMT
    Fixes GAUDI-1216 Fixes GAUDI-979
    See merge request !186

! 2016-05-18 - Charles Leggett (commit 3f2b55e)

 - Report underlying error when dlopen fails in listcomponents

   When dlopen files in listcomponents.exe, listcomponents prints only that the
   library didn't load, but doesn't include information on the underlying
   error. This change adds the result of dlerror to the error message.
    See merge request !159

========================== GaudiPluginService v3r1 ===========================

! 2015-10-26 - commit de80db5

 - More modernization changes

   Fix (almost) all warnings from clang 3.7, and use clang-modernize to further
   modernize the code.

   Fixes GAUDI-1118.

   See merge request !49


! 2015-10-16 - commit bf01805

 - Merge branch 'GAUDI-1111' into 'master'

   remove dependency on Boost from GaudiPluginService

   Reverted the part of commit dddeca32 that introduce the dependency on Boost.

   Fixes GAUDI-1111.

   See merge request !53

========================== GaudiPluginService v3r0 ===========================

! 2015-09-11 - commit c062cbe

 - C++11 modernization changes

   Some trivial - and some not so trivial! - changes which take advantage of
   C++11...

   See merge request !7

========================== GaudiPluginService v2r2 ===========================
! 2014-07-04 - Marco Clemencic
 - Improved Doxygen documentation.

========================== GaudiPluginService v2r1 ===========================
! 2014-10-28 - Marco Clemencic
 - Demangle factory types in warning messages.

========================== GaudiPluginService v2r0 ===========================
! 2014-09-30 - David Quarrie
 - do not hide C++11 constructs from Reflex for ATLAS (different version of
   GCCXML)

! 2014-05-07 - Sebastien Binet
 - leverage C++11 variadic templates for the factories.
 - internally, also use r-value references and std::forward
 - hide the C++11 constructs from Reflex as GCC-XML parser predates C++11

========================== GaudiPluginService v1r2 ===========================
! 2014-05-12 - Marco Clemencic
 - Fixed listcomponents command lines tests (CMake only).

========================== GaudiPluginService v1r1 ===========================

! 2014-05-19 - Charles Leggett
 - add HAVE_GAUDI_PLUGINSVC tag for cmt requirements

! 2014-05-09 - Charles Leggett
 - add macro HAVE_GAUDI_PLUGINSVC so external packages can see if it's available

! 2014-05-09 - Marco Clemencic
 - Improved command line of listcomponents: now it accepts --output and --help.
 - Modified the listcomponents CMT document to use --output instead of output
   redirection. Fixes bug #104455

========================== GaudiPluginService v1r0 ===========================
! 2014-02-03 - Marco Clemencic
 - Added support for Reflex names for components, enabled with the compile flag
   -DGAUDI_REFLEX_COMPONENT_ALIASES.

! 2014-01-10 - Marco Clemencic
 - Fixed error handling in listcomponents.cpp: exit with a failure status code
   if there is an error loading a library.

! 2013-12-19 - Marco Clemencic
 - Minor fix to CMake configuration.

! 2013-08-28 - Sebastien Binet
 - Added (C++) tests for optional metadata (properties).
 - Added docstrings to the python interface.

! 2013-08-27 - Marco Clemencic
 - Fixed symbol visibility.

! 2013-08-23 - Marco Clemencic
 - Updated the CMT configuration.

! 2013-08-23 - Sebastien Binet
 - Added optional metadata (properties) to the factories.
 - Added a Python module to query the list of factories (based on ctypes).

! 2013-07-26 - Marco Clemencic
 - Ported new GaudiPluginService to CMT.

! 2013-07-25 - Marco Clemencic
 - Removed the extra level of indirection and simplified the support for
   private/protected constructors.

! 2013-07-25 - Marco Clemencic
 - Added an extra level of indirection (a creator class) to allow components
   with protected/private constructors.

! 2013-07-24 - Marco Clemencic
 - Do not use the type name in the helper local class created by the DECLARE_*
   macros: it's not really needed and it allows the use of namespaces and
   templates in the parameter passed to DECLARE_*.

! 2013-07-24 - Marco Clemencic
 - Added some tests.

! 2013-07-23 - Marco Clemencic
 - Added thread safety (with locks) if compiled with C++11.

! 2013-07-23 - Marco Clemencic
 - Changes the dlopen flags from (RTLD_LAZY | RTLD_LOCAL) to
   (RTLD_LAZY | RTLD_GLOBAL) to avoid problems with Python binary modules
   imported through the Python C/C++ API.
   The Python binary modules may not be linked to the Python library, so they
   need that the Python symbols are visible globally.

! 2013-07-19 - Marco Clemencic
 - Added instructions for the Plugin Service in a README.md file.

! 2013-07-18 - Marco Clemencic
 - Modified the symbol resolution policy when loading a component library,
   using RTLD_LAZY instead of RTLD_NOW.
   It allows loading of component libraries with unresolved symbols, but it is
   consistent with the old behavior.

! 2013-07-18 - Marco Clemencic
 - Added the macros DECLARE_COMPONENT and DECLARE_COMPONENT_WITH_ID to simplify
   the declaration of component classes when the factory is declared as the
   typedef Factory in a base class.
   In the example below the declaration becomes:

       #include "MyDerivedComponent.h"
       DECLARE_COMPONENT(MyDerivedComponent)

! 2013-07-18 - Marco Clemencic
 - Fixed a problem when the DECLARE_* macros are called from within a namespace.

! 2013-07-17 - Marco Clemencic
 - First complete implementation of a ROOT/Reflex-free Plugin Service for
   Gaudi. The typical use is:

   - headers

     #include <Gaudi/PluginService.h>

     class IMyInterface { ... };

     class MyBaseComponent: virtual public IMyInterface {
     public:
       typedef Gaudi::PluginService::Factory1<IMyInterface*,
                                              const std::string&>
                                              Factory;
       MyBaseComponent(const std::string&);
       ...
     };

     class MyDerivedComponent: public MyBaseComponent {
       ...
     };

   - sources

     #include "MyDerivedComponent.h"
     DECLARE_FACTORY(MyDerivedComponent, MyBaseComponent::Factory)

   - to instantiate

     #include "MyBaseComponent.h"
     IMyInterface* ptr =
         MyBaseComponent::Factory::create("MyDerivedComponent", "argument");