Bug#580088: jack-audio-connection-kit: FTBFS on armel (cannot convert 'int' to 'va_list')
On Mon, May 03, 2010 at 04:00:14PM +0100, Adam D. Barratt wrote: ../common/JackAPI.cpp:303: error: cannot convert 'int' to 'va_list' for argument '4' to 'jack_client_t* jack_client_open_aux(const char*, jack_options_t, jack_status_t*, va_list)' The code in question: jack_client_open_aux(client_name, (jack_options_t)options, NULL, NULL); Obviously, arg4 is NULL, so the message means the compiler cannot convert 0 to a va_list, which should be (more or less) a pointer. Or at least was until some va_list mangling in gcc-4.4. I don't have a clue: anybody more common with ARM specifics around? TIA -- mail: a...@thur.de http://adi.thur.de PGP/GPG: key via keyserver ___ pkg-multimedia-maintainers mailing list pkg-multimedia-maintainers@lists.alioth.debian.org http://lists.alioth.debian.org/mailman/listinfo/pkg-multimedia-maintainers
Bug#580088: jack-audio-connection-kit: FTBFS on armel (cannot convert 'int' to 'va_list')
On Mon, 03 May 2010 at 18:13:00 +0200, Adrian Knoth wrote: Obviously, arg4 is NULL, so the message means the compiler cannot convert 0 to a va_list, which should be (more or less) a pointer. Or a struct, or a platform-specific-object that exists nowhere else in C, or a piece of cheese, depending. (C makes no guarantees about what va_list means; I doubt C++ does either.) Googling for armel va_list turns up https://bugs.launchpad.net/ubuntu/+source/gnome-keyring/+bug/527179 which suggests that va_list is indeed a struct on armel. The code in question: jack_client_open_aux(client_name, (jack_options_t)options, NULL, NULL); Instead of trying to fake up an empty va_list, why not call the varargs version, with only the argument terminator in its varargs? jack_client_open(client_name, (jack_options_t)options, NULL, NULL); I'm assuming here that jack_client_open_aux is to jack_client_open as vprintf is to printf, i.e. jack_client_open just calls jack_client_open_aux. Regards, S (who knows very little about armel or JACK) ___ pkg-multimedia-maintainers mailing list pkg-multimedia-maintainers@lists.alioth.debian.org http://lists.alioth.debian.org/mailman/listinfo/pkg-multimedia-maintainers
Bug#580088: jack-audio-connection-kit: FTBFS on armel (cannot convert 'int' to 'va_list')
On Mon, May 03, 2010 at 05:50:39PM +0100, Simon McVittie wrote: The code in question: jack_client_open_aux(client_name, (jack_options_t)options, NULL, NULL); Instead of trying to fake up an empty va_list, why not call the varargs version, with only the argument terminator in its varargs? jack_client_open(client_name, (jack_options_t)options, NULL, NULL); Absolutely. I've been blind. ;) Thanks, this should work. -- mail: a...@thur.de http://adi.thur.de PGP/GPG: key via keyserver ___ pkg-multimedia-maintainers mailing list pkg-multimedia-maintainers@lists.alioth.debian.org http://lists.alioth.debian.org/mailman/listinfo/pkg-multimedia-maintainers
Bug#580088: jack-audio-connection-kit: FTBFS on armel (cannot convert 'int' to 'va_list')
On Mon, May 3, 2010 at 18:13:00 +0200, Adrian Knoth wrote: On Mon, May 03, 2010 at 04:00:14PM +0100, Adam D. Barratt wrote: ../common/JackAPI.cpp:303: error: cannot convert 'int' to 'va_list' for argument '4' to 'jack_client_t* jack_client_open_aux(const char*, jack_options_t, jack_status_t*, va_list)' The code in question: jack_client_open_aux(client_name, (jack_options_t)options, NULL, NULL); Obviously, arg4 is NULL, so the message means the compiler cannot convert 0 to a va_list, which should be (more or less) a pointer. Or at least was until some va_list mangling in gcc-4.4. va_list is very much not a pointer. It's an opaque type, using it as a pointer is wrong. Cheers, Julien signature.asc Description: Digital signature ___ pkg-multimedia-maintainers mailing list pkg-multimedia-maintainers@lists.alioth.debian.org http://lists.alioth.debian.org/mailman/listinfo/pkg-multimedia-maintainers
