Re: g++ version and -std=c++11 ?

Paul Davis writes:
> You might consider running ./waf configure --help
> which would show --cxx11 as an option already (thanks to rgareus, as ever)

whoops! Newbie error! ha Thanks for your patience. For documentation:
Yes. I was missing how to set these waf options. Should have read the waf book:
https://waf.io/book/

For anyone else starting out compiling on a current Gentoo Linux system,
the build commands were thus:
$ ./waf clean
$ ./waf configure --use-libc++
$ ./waf
It built successfully.
:
[811/811] vnum: build/libs/ardour/libardour.so -> build/libs/ardour/libardour.so.3 build/libs/ardour/libardour.so.3.0.0
Waf: Leaving directory `/da/dev/ben/ardour/build'
'build' finished successfully (14m42.387s)

this gentoo system has a newer version of libsigc++ (as Paul pointed out)
(dev-libs/libsigc++-2.6.2:2)  It seems to run ok.

/da/dev/ben/ardour $ ./gtk2_ardour/ardev
bind txt domain [gtk2_ardour4] to /usr/local/share/ardour4/locale
Ardour4.7.787 (built using 4.7-787-g428c82b and GCC version 4.9.3)
ardour: [INFO]: Your system is configured to limit Ardour to only 4096 open files
ardour: [INFO]: Loading system configuration file /da/dev/ben/ardour/system_config
Loading user configuration file /mnt/central/home/ben/.config/ardour4/config
CPU vendor: GenuineIntel
ardour: [INFO]: AVX-capable processor
ardour: [INFO]: CPU brand: Intel(R) Core(TM) i5-4690 CPU @ 3.50GHz
ardour: [INFO]: Using SSE optimized routines
ardour: [INFO]: Loading default ui configuration file /da/dev/ben/ardour/build/gtk2_ardour/default_ui_config
ardour: [INFO]: Loading user ui configuration file /mnt/central/home/ben/.config/ardour4/ui_config
ardour: [INFO]: Loading color file /da/dev/ben/ardour/gtk2_ardour/dark.colors
ardour: [INFO]: Loading ui configuration file /da/dev/ben/ardour/build/gtk2_ardour/clearlooks.rc
ardour: [INFO]: Loading ui configuration file /da/dev/ben/ardour/build/gtk2_ardour/clearlooks.rc
EngineControl::set_state
Found nothing along /home/ben/.config/ardour4/templates:./gtk2_ardour/../templates:./gtk2_ardour/../build/templates:./gtk2_ardour/../gtk2_ardour/templates:./gtk2_ardour/../build/gtk2_ardour/templates:./templates
run dialog
Announcement is:
Scanning folders for bundled LV2s: ./gtk2_ardour/../build/libs/LV2
KP is ardour.keys
Set cursor set to default
Skip explicit buffer seconds, preset in use
Skip explicit buffer seconds, preset in use
Set buffering params to 262144|131072|10|10
:

Thanks again,
b.



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