[GRASS-dev] Re: [Ffmpeg-devel] Problems with preC99 compilers

[Hamish]

> > > I was compiling recent GRASS GIS version but it failed on ffmpeg
> > > includes due  to one line comments. One line comments (//) where
> > > introduced in C99, thus  preC99 compilers do not understand them.
> > 
> > All widely used compilers from the past several years understand
> > them. Even the obsolete gcc versions from before any real C99
> > support understood them.
> > 
> > > gcc version 4.1.2 20060920 (prerelease)
> > 
> > Supports not only // but most of the more complex features of C99
> > too.
> > 
> > > Error message:
> > > gcc
> > > -I/home/maris/soft/grass-6.2.0RC1/dist.i686-pc-linux-gnu/include 
> > > -g -ansi -Wall
> > 
> > The -ansi switch explicitly sets the standard back to C89 and
> > disables support for any features of current C and GNU extensions
> > that were not present in C89. Remove that switch and it'll compile.


The current state:

grass63$ grep -rI '^//' * | grep -v terraflow

swig/python/python_grass6.i://File : python_grass6.i
swig/python/my_typemaps.i://            G_free_list($1);
vector/v.edit/del.c://          Vect_delete_line(Map, id);
vector/v.edit/del.c://          Vect_delete_line(Map, area);
vector/v.edit/del.c://          Vect_delete_line(Map, id);
vector/v.edit/cat.c://    G_message(_("Reading vector: "));
vector/v.edit/cat.c://  G_percent(line, nlines, 1);
vector/v.edit/add.c://          ret = Vect_get_point_in_poly(line, &xc, &yc);
vector/v.edit/main.c://static int error_routine(const char*msg, int fatal);
vector/v.edit/main.c://    G_set_error_routine(error_routine);
vector/v.edit/main.c:// Vect_set_open_level(2);
vector/v.edit/main.c://    Vect_set_category_index_update ( &Map );
vector/v.edit/main.c://    G_unset_error_routine();
vector/v.drape/spearfish.pov://background { color SkyBlue }


(v.edit isn't built by default)



However, currently ffmpeg build is broken on Debian/stable if using
libavcodeccvs from Christian Marillat's unofficial packages.

me:
> nviz: relocation error: /usr/lib/libavcodec.so.0: undefined symbol:
> faacDecOpen

Christian:
> you also need to backport the latest faac and faad packages.


It's fine if using the official libavcodec-dev packages. (?)



Hamish