Project: switch to C++14

This means we have rather tight compiler requirements now.
Beyond that, we expect no serious impact; the most notable
C++14 feature we're likely to use soon is type inference
on lambda arguments.

admin/scons/Setup.py

@@ -74,7 +74,7 @@ def defineBuildEnvironment():
     env.Replace( CPPPATH   =["#src"]    # used to find includes, "#" means always absolute to build-root
                , CPPDEFINES=['LUMIERA_VERSION='+VERSION ]    # note: it's a list to append further defines
                , CCFLAGS='-Wall -Wextra'
-               , CXXFLAGS='-std=gnu++11 -Wno-enum-compare'
+               , CXXFLAGS='-std=gnu++14 -Wno-enum-compare'
                , CFLAGS='-std=gnu99' 
                )
     env.Append(LINKFLAGS='-Wl,--no-undefined')  # require every dependency is given on link, in the right order

doc/technical/build/Dependencies.txt

@@ -48,9 +48,9 @@ Languages and Tools
 
 * C / C++
 
- - a C99 / C++11 compatible compiler footnote:[in practice, we build using GCC and
+ - a C99 / C++14 compatible compiler footnote:[in practice, we build using GCC and
    occasionally we check using Clang]
- - GCC *4.7* or Clang *3.3* should be fine footnote:[basically we try to use just the stock language.
+ - GCC *4.9* or Clang *3.5* should be fine footnote:[basically we try to use just the stock language.
    On rare occasions in the past, we _did_ use some GCC extensions, like `typeof()`, but we care for
    workarounds, in case this becomes a problem].
  
@@ -62,7 +62,7 @@ Languages and Tools
  - libboost-regex-dev
 
 * Script languages
- - Python (*2.6*) for build scripts
+ - Python (*2.7*) for build scripts
  - bash (some test scripts use bash specific extensions)
 
 Build Tools
@@ -79,10 +79,7 @@ We maintain a link:/documentation/technical/infra/debianDepot.html[Debian/Ubuntu
 Libraries
 ~~~~~~~~~
 
-* BOOST footnote:[as of [yellow-background]#5/2014#, we rely on the quite recent Boost-1.55,
+* BOOST
-  which isn't in Debian/stable and not even in Debian/testing. +
-  As always in such cases, we provide backported packages in our
-  link:http://lumiera.org/debian/pool/experimental/b/boost1.55/[Lumiera package repository], until these versions become mainstream.]
 * link:http://nobug.pipapo.org/[NoBug]
 * http://gmerlin.sourceforge.net/gavl.html[GAVL] (for raw media support)
 * ALSA: libasound2-dev

doc/technical/code/c++11.txt

@@ -12,7 +12,9 @@ language and compiler support wasn't ready for what we consider _state of the cr
 amended deficiencies by rolling our own helper facilities, with a little help from Boost.
 Thus there was no urge for us to adopt the new language standard; we could simply wait for
 the compiler support to mature. In spring 2014, finally, we were able to switch our codebase
-to C++11 with minimal effort. Following this switch, we're now able to reap the benefits of
+to C++11 with minimal effort.footnote[since 8/2015 -- after the switch to Debian/Jessie
+as a »reference platform«, we even compile with `-std=gnu++14`]
+Following this switch, we're now able to reap the benefits of
 this approach; we may now gradually replace our sometimes clunky helpers and workarounds
 with the smooth syntax of the ``new language'' -- without being forced to learn or adopt
 an entirely new coding style, since that style isn't exactly new for us.

doc/technical/howto/IdeSetup.txt

@@ -29,7 +29,7 @@ There is nothing really fancy with the configuration, things work as you'd expec
       actually enabled. This provider is used by the IDE to retrieve definitions from the compiler for syntax checks
       while you type and for building the search index. Typically, this provider is called ``GCC Builtin Compiler Settings'';
       please ensure in the global (or the project specific) configuration that the invocation command line includes
-      the argument `-std=gnu++11` -- otherwise you'll get a lot of red squiggles on the new language features ;-)
+      the argument `-std=gnu++14` -- otherwise you'll get a lot of red squiggles on the new language features ;-)
 
 Indexer troubleshooting
 ~~~~~~~~~~~~~~~~~~~~~~~

doc/user/tutorials/building.txt

@@ -46,7 +46,7 @@ authoritative information about the build dependencies is encoded into the
 link:{ldoc}/technical/build/SCons.html[build system]. Thus, when the build
 system aborts, indicating that a never version of some library is required,
 then usually the build system is right...]
-More specifically, you'll need the GNU C/C++ compiler with C++11 support (Version >= 4.7)
+More specifically, you'll need the GNU C/C++ compiler with C++14 support (Version >= 4.9)
 in addition to the following tools and libraries:
 
  * link:http://git-scm.com/[Git VCS]
@@ -73,7 +73,7 @@ For Debian based systems, e.g. Mint, Ubuntu..., you can install these packages a
 -------------------------------------------------------------------------------------
 sudo apt-get install build-essential scons git-core valgrind intltool \
 libboost-dev libboost-program-options-dev libboost-regex-dev libboost-filesystem-dev \
-libgavl-dev libgtkmm-2.4-dev librsvg2-dev libxv-dev
+libgavl-dev libgtkmm-3.0-dev libgdl-3-dev librsvg2-dev libxv-dev
 -------------------------------------------------------------------------------------
 
 Optionally, you may also want to install the `gtk2-engines` package.
@@ -136,6 +136,14 @@ sudo make install
 GDL: building and installing
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
+NOTE: 8/2015 the information in this paragraph is outdated!
+      We have switched to GTK-3 recently. Now we're able just to use the
+      official GDL from upstream (or your distribution). But we have also
+      switched to C++ bindings, and thus need a gdlmm installation, which
+      is not yet provided through the offial repositories on most distributions.
+      Thus, instead of shipping our own libGDL, now we're providing a DEB package
+      of gdlmm through our repository...
+
 The *GNOME Docking library* is sometimes available through your package manager,
 but we provide a suitable custom package as well; the following shows how to
 build the latter

doc/user/tutorials/contributing.txt

@@ -266,7 +266,6 @@ Proc Layer::
   * expand on the work done for a pooling small objects allocator.
   * develop a backend for our various allocation schemes to use this allocator.
 
-- help with the C++11 transition
 - Command system at the GUI interface
 
   * expand on the work done for generic commands