Em Mon, 5 Feb 2018 18:01:34 +0100 Hans Verkuil <hverk...@xs4all.nl> escreveu:
> On 02/05/2018 05:59 PM, Hans Verkuil wrote: > > On 02/05/2018 05:55 PM, Mauro Carvalho Chehab wrote: > >> Em Mon, 5 Feb 2018 14:37:29 -0200 > >> Mauro Carvalho Chehab <mche...@kernel.org> escreveu: > >> > >>> Em Mon, 5 Feb 2018 08:21:54 -0800 > >>> Tim Harvey <thar...@gateworks.com> escreveu: > >>> > >>>> Hans, > >>>> > >>>> I'm failing compile (of master 4ee9911) with: > >>>> > >>>> CXX v4l2_compliance-media-info.o > >>>> media-info.cpp: In function ‘media_type media_detect_type(const char*)’: > >>>> media-info.cpp:79:39: error: no matching function for call to > >>>> ‘std::basic_ifstream<char>::basic_ifstream(std::__cxx11::string&)’ > >>>> std::ifstream uevent_file(uevent_path); > >>>> ^ > >>> > >>> Btw, while on it, a few days ago, I noticed several class warnings when > >>> building v4l-utils on Raspbian, saying that it was using some features > >>> that future versions of gcc would stop using at qv4l2. See enclosed. > >>> > >>> I didn't have time to look on them. > >> > >> FYI, it still happens with today's upstream's version: > >> > >> 4ee99116d0ec (HEAD, origin/master, origin/HEAD) v4l2-ctl: improve the > >> fps calculation when streaming > >> > >> $ gcc --version > >> gcc (Raspbian 6.3.0-18+rpi1) 6.3.0 20170516 > >> Copyright (C) 2016 Free Software Foundation, Inc. > >> This is free software; see the source for copying conditions. There is NO > >> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR > >> PURPOSE. > > > > My guess is that it is a bogus message from gcc 6. > > > > Regards, > > > > Hans > > > > See: https://gcc.gnu.org/ml/gcc/2017-05/msg00073.html > > Nothing to worry about. Hmm... as suggested there, it could be worth to add -Wno-psabi at qv4l2 Makefile if arch is arm[1], in order to avoid those warnings there. [1] from what's said at https://gcc.gnu.org/gcc-7/changes.html, this is due to a bug on gcc 5 for ARM. > > Hans Thanks, Mauro
