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

Paul Davis paul at linuxaudiosystems.com
Tue Apr 19 21:28:14 PDT 2016


Oh, and please don't ever use the 3.5.403 version. We're at 4.7 for a
reason (or many, many reasons to be more precise).

On Wed, Apr 20, 2016 at 12:24 AM, Paul Davis <paul at linuxaudiosystems.com>
wrote:

> You're using a version of libsigc++ which is different from the one we
> use. You can find the full list of dependencies used for nightly builds and
> for releases at http://nightly.ardour.org/
>
> Ardour is *not* written in C++11. We use a variety of compilers (gcc4,
> gcc5, clang, apple gcc).
>
> On Wed, Apr 20, 2016 at 12:13 AM, Ben Simons <Ben.Simons at uts.edu.au>
> wrote:
>
>> 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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>
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