[Ardour-Dev] g++ version and -std=c++11 ?

Ben Simons Ben.Simons at uts.edu.au
Tue Apr 19 21:13:20 PDT 2016


Hi,


first timer here. I looked around for about an hour before asking this.

Can't see it discussed anywhere.



What version of gcc is used to build Ardour on linux?


I've just tried compiling a version forked on github today.

This system is: 4.1.12-gentoo

# gcc-config -l

 [1] x86_64-pc-linux-gnu-4.9.3 *


It seems the latest source uses C++11, but there's missing "-std=c++11" in

the Makefiles. I believe I have done an "emerge" of media-sound/ardour-3.5.403

on gentoo in the past on another machine, and it built ok with gcc 4.8.4


I just ssh to my old machine and tested ardour3 and see this in the shell.

 $ ardour3
bnd txt domain [gtk2_ardour3] to /usr/share/locale
Ardour3.5.403 (built using 3.5-403-gentoo and GCC version 4.8.4)
ardour: [INFO]: Your system is configured to limit Ardour to only 4096 open files
ardour: [INFO]: Loading system configuration file /etc/ardour3/ardour_system.rc
Loading user configuration file /home/ben/.config/ardour3/ardour.rc
No H/W specific optimizations in use
ardour: [INFO]: Loading default ui configuration file /etc/ardour3/ardour3_ui_default.conf
Loading ui configuration file /etc/ardour3/ardour3_ui_dark.rc
Found nothing along /home/ben/.config/ardour3/templates:/usr/share/ardour3/templates
run dialog
Announcement is: Version 4.7 has been released. Update at http://ardour.org/download

So that works. But that was a gentoo emerge.

When i clone my fork on github and run ./waf to build i get this error:

:
:
[ 39/811] cxx: libs/vamp-plugins/TruePeak.cpp -> build/libs/vamp-plugins/TruePeak.cpp.1.o
[ 40/811] cxx: libs/vamp-plugins/ZeroCrossing.cpp -> build/libs/vamp-plugins/ZeroCrossing.cpp.1.o
[ 41/811] cxx: libs/vamp-plugins/Onset.cpp -> build/libs/vamp-plugins/Onset.cpp.1.o
[ 42/811] c: libs/libltc/ltc.c -> build/libs/libltc/ltc.c.2.o
[ 43/811] c: libs/libltc/timecode.c -> build/libs/libltc/timecode.c.2.o
[ 44/811] c: libs/libltc/encoder.c -> build/libs/libltc/encoder.c.2.o
[ 45/811] c: libs/libltc/decoder.c -> build/libs/libltc/decoder.c.2.o
[ 46/811] cxx: libs/lua/lua.cc -> build/libs/lua/lua.cc.1.o
[ 47/811] cxx: libs/lua/luastate.cc -> build/libs/lua/luastate.cc.1.o
In file included from /usr/include/sigc++-2.0/sigc++/signal_base.h:26:0,
                 from /usr/include/sigc++-2.0/sigc++/signal.h:8,
                 from /usr/include/sigc++-2.0/sigc++/sigc++.h:86,
                 from ../libs/lua/lua/luastate.h:23,
                 from ../libs/lua/luastate.cc:20:
/usr/include/sigc++-2.0/sigc++/trackable.h:40:3: warning: identifier 'noexcept' is a keyword in C++11 [-Wc++0x-compat]
   trackable_callback(void* data, func_destroy_notify func) noexcept
   ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/4.9.3/include/g++-v4/type_traits:35:0,
                 from /usr/include/sigc++-2.0/sigc++/visit_each.h:22,
                 from /usr/include/sigc++-2.0/sigc++/functors/slot.h:6,
                 from /usr/include/sigc++-2.0/sigc++/signal_base.h:27,
                 from /usr/include/sigc++-2.0/sigc++/signal.h:8,
                 from /usr/include/sigc++-2.0/sigc++/sigc++.h:86,
                 from ../libs/lua/lua/luastate.h:23,
                 from ../libs/lua/luastate.cc:20:
/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.3/include/g++-v4/bits/c++0x_warning.h:32:2: error: #error This file requires compiler and library support for the ISO C++ 2011 standard. This support is currently experimental, and must be enabled with the -std=c++11 or -std=gnu++11 compiler options.
 #error This file requires compiler and library support for the \
  ^


Note the error (marked in bold) at the end regarding -std=c++11


It's tempting to just export CXXFLAGS="-std=c++11", but no doubt that's a bad idea(tm)!

i have a feeling there's something more fundamentally wrong? There's many many warnings

and errors. That was just the first one.


Sorry to ask about gcc version. I see someone on the list did ask it a while ago

and no one answered. (ie. Valerio Orlandini on Fri Jun 4 08:08:10 PDT 2010)


thanks,

ben.




PS. If it helps, here's the output from ./waf configure


/da/dev/ben/ardour $ ./waf configure
Setting top to                           : /mnt/da/dev/ben/ardour
Setting out to                           : /mnt/da/dev/ben/ardour/build
Checking for 'gcc' (c compiler)          : /usr/bin/gcc
Checking for 'g++' (c++ compiler)        : /usr/bin/g++

Global Configuration
 * Install prefix                                    : /usr/local
 * Debuggable build                                  : True
 * Build documentation                               : False

Ardour Configuration
 * Will build against private GTK dependency stack   : no
 * Will rely on libintl built into libc              : yes
 * Will build against private Ardour dependency stack : no
Checking for function dlopen                         : yes
Checking for boost library >= 1.39                   : ok
Checking for program pkg-config                      : /usr/bin/pkg-config
Checking for 'alsa'                                  : yes
Checking for 'glib-2.0' >= 2.28                      : yes
Checking for 'gthread-2.0' >= 2.2                    : yes
Checking for 'glibmm-2.4' >= 2.32.0                  : yes
Checking for 'sndfile' >= 1.0.18                     : yes
Checking for 'giomm-2.4' >= 2.2                      : yes
Checking for 'libcurl' >= 7.0.0                      : yes
Checking for 'liblo' >= 0.26                         : yes
Checking for 'taglib' >= 1.6                         : yes
Checking for 'vamp-sdk' >= 2.1                       : yes
Checking for 'vamp-hostsdk' >= 2.1                   : yes
Checking for 'rubberband'                            : yes
Checking for  sndfile RF64=>RIFF support             : Found
Checking for clang                                   : no
Checking for 'fftw3f'                                : yes
Checking for 'aubio' >= 0.3.2                        : yes
Checking for 'aubio' >= 0.4.0                        : yes
Checking for 'libxml-2.0'                            : yes
Checking for 'sigc++-2.0' >= 2.0                     : yes
Checking for function getmntent                      : yes
Checking for header execinfo.h                       : yes
Checking for header unistd.h                         : yes
Checking for function posix_memalign                 : yes
Checking for function localtime_r                    : yes
Checking for header boost/shared_ptr.hpp             : yes
Checking for header boost/weak_ptr.hpp               : yes
Checking for 'cppunit' >= 1.12.0                     : yes
Checking for header boost/shared_ptr.hpp             : yes
Checking for header boost/weak_ptr.hpp               : yes
Checking for header boost/shared_ptr.hpp             : yes
Checking for header boost/weak_ptr.hpp               : yes
Checking for header cwiid.h                          : not found
You are missing the cwiid headers needed to compile wiimote support
Checking for 'jack' >= 0.121.0                       : yes
Checking for JACK metadata API                       : not found (or broken). JACK metadata API will not be used
Checking for program gas,as,gcc                      : /usr/bin/as
Checking for 'lrdf' >= 0.4.0                         : yes
Checking for 'samplerate' >= 0.1.0                   : yes
Checking for 'lv2' >= 1.0.0                          : yes
Checking for 'lv2' >= 1.2.0                          : yes
Checking for 'lv2' >= 1.10.0                         : yes
Checking for 'serd-0' >= 0.14.0                      : yes
Checking for 'sord-0' >= 0.8.0                       : yes
Checking for 'sratom-0' >= 0.2.0                     : yes
Checking for 'lilv-0' >= 0.14.0                      : yes
Checking for 'lilv-0' >= 0.16.0                      : yes
Checking for 'lilv-0' >= 0.19.2                      : yes
Checking for 'lilv-0' >= 0.21.3                      : not found
Checking for 'suil-0' >= 0.6.0                       : not found
Checking for 'ogg' >= 1.1.2                          : yes
Checking for 'flac' >= 1.2.1                         : yes
Checking for header sys/vfs.h                        : yes
Checking for header sys/statvfs.h                    : yes
Checking for header unistd.h                         : yes
Checking for header boost/shared_ptr.hpp             : yes
Checking for header boost/weak_ptr.hpp               : yes
Checking for header boost/scoped_ptr.hpp             : yes
Checking for header boost/ptr_container/ptr_list.hpp : yes
Checking for 'gtkmm-2.4' >= 2.8                      : yes
Checking for 'gtk+-2.0' >= 2.12.1                    : yes
Checking for 'samplerate' >= 0.1.7                   : yes
Checking for 'fftw3f' >= 3.3.5                       : not found
Checking for header boost/shared_ptr.hpp             : yes
Checking for header boost/format.hpp                 : yes
Checking for 'cairomm-1.0' >= 1.8.4                  : yes
Checking for 'lv2' >= 1.0.0                          : yes
Checking for 'gthread-2.0' >= 2.10.1                 : yes
Checking for 'gtk+-2.0' >= 2.18                      : yes
Checking for 'x11' >= 1.1                            : yes
Checking for 'fontconfig'                            : yes
Checking for header boost/shared_ptr.hpp             : yes
Checking for header boost/weak_ptr.hpp               : yes
session-utils depend on the dummy backend.
 * build session-utils                               : no
Checking for 'dbus-1'                                : yes
Checking for function readline                       : yes
 * Build documentation                               : False
 * Debuggable build                                  : True
 * Export all symbols (backtrace)                    : False
 * Install prefix                                    : /usr/local
 * Strict compiler flags                             : []
 * Internal Shared Libraries                         : True
 * Use External Libraries                            : False
 * Library exports hidden                            : True
 * ALSA DBus Reservation                             : True
 * Architecture flags                                : None
 * Aubio                                             : True
 * AudioUnits                                        : False
 * Free/Demo copy                                    : False
 * Build target                                      : x86_64
 * CoreAudio                                         : False
 * CoreAudio 10.5 compat                             : False
 * Debug RT allocations                              : False
 * Debug Symbols                                     : True
 * Process thread timing                             : False
 * Denormal exceptions                               : False
 * FLAC                                              : True
 * FPU optimization                                  : True
 * Freedesktop files                                 : False
 * Libjack linking                                   : link
 * Libjack metadata                                  : False
 * Lua Binding Doc                                   : False
 * LV2 UI embedding                                  : False
 * LV2 support                                       : True
 * LV2 extensions                                    : True
 * LXVST support                                     : True
 * OGG                                               : True
 * Phone home                                        : True
 * Program name                                      : Ardour
 * Samplerate                                        : True
 * PT format                                         : False
 * PTW32 Semaphore                                   : False
 * Translation                                       : True
 * Unit tests                                        : False
 * Mac i386 Architecture                             : False
 * Mac ppc Architecture                              : False
 * Windows VST support                               : False
 * Wiimote support                                   : False
 * Windows key                                       : Mod4><Super

Backends:
 * PortAudio Backend                                 : False
 * CoreAudio/Midi Backend                            : False
 * ALSA Backend                                      : False
 * Dummy backend                                     : False
 * JACK Backend                                      : True


 * C compiler flags                                  : ['-I/mnt/da/dev/ben/ardour', '-DHAVE_RF64_RIFF', '-DWAF_BUILD', '-g', '-fshow-column', '-DARCH_X86', '-mmmx', '-msse', '-mfpmath=sse', '-DUSE_XMMINTRIN', '-DBUILD_SSE_OPTIMIZATIONS', '-DLXVST_64BIT', '-Wall', '-Wpointer-arith', '-Wcast-qual', '-Wcast-align', '

-Wno-unused-parameter', '-DBOOST_SYSTEM_NO_DEPRECATED', '-D_ISOC9X_SOURCE', '-D_LARGEFILE64_SOURCE', '-D_FILE_OFFSET_BITS=64', '-DENABLE_NLS', '-DPROGRAM_NAME="Ardour"', u'-DPROGRAM_VERSION="4"', '-Wstrict-prototypes', '-Wmissing-prototypes']
 * C++ compiler flags                                : ['-I/mnt/da/dev/ben/ardour', '-DHAVE_RF64_RIFF', '-DWAF_BUILD', '-g', '-fshow-column', '-DARCH_X86', '-mmmx', '-msse', '-mfpmath=sse', '-DUSE_XMMINTRIN', '-DBUILD_SSE_OPTIMIZATIONS', '-DLXVST_64BIT', '-Wall', '-Wpointer-arith', '-Wcast-qual', '-Wcast-align', '-Wno-unused-parameter', '-DBOOST_SYSTEM_NO_DEPRECATED', '-D_ISOC9X_SOURCE', '-D_LARGEFILE64_SOURCE', '-D_FILE_OFFSET_BITS=64', '-DENABLE_NLS', '-DPROGRAM_NAME="Ardour"', u'-DPROGRAM_VERSION="4"', '-Woverloaded-virtual', '-Wno-unused-local-typedefs', '-D__STDC_LIMIT_MACROS', '-D__STDC_FORMAT_MACROS', '-DCANVAS_COMPATIBILITY', '-DCANVAS_DEBUG']
 * Linker flags                                      : ['']

'configure' finished successfully (3.996s)
/da/dev/ben/ardour $







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