[GRASS-dev] cvs compilation problem - nviz?

[Glynn Clements]

Volker Wichmann wrote:

> almost similar to a recent post of Helena, I have problems compiling cvs 
> on a fedora 7 / NVIDIA machine. But I get another error:
> Errors in:
> /usr/local/src/grass-cvs/grass6/lib/ogsf
> /usr/local/src/grass-cvs/grass6/visualization/nviz
> 
> Changing to /lib/ogsf and running make:
> gcc -I/usr/local/src/grass-cvs/grass6/dist.i686-pc-linux-gnu/include -g 
> -O2 -fPIC -DPACKAGE=\""grasslibs"\" -I/usr/local/include 
> -DPACKAGE=\""grasslibs"\" -I/usr/local/include/ffmpeg 
> -I/usr/local/src/grass-cvs/grass6/dist.i686-pc-linux-gnu/include \
> -o OBJ.i686-pc-linux-gnu/gsd_img_ppm.o -c gsd_img_ppm.c
> In file included from gsd_img_ppm.c:20:
> /usr/local/include/ffmpeg/avcodec.h:2252: warning: "ImgReSampleContext" is deprecated
> /usr/local/include/ffmpeg/avcodec.h:2258: warning: "ImgReSampleContext" is deprecated
> gsd_img_ppm.c: In function "gsd_init_mpeg":
> gsd_img_ppm.c:122: error: "mpeg1video_encoder" undeclared (first use in this function)
> gsd_img_ppm.c:122: error: (Each undeclared identifier is reported only once
> gsd_img_ppm.c:122: error: for each function it appears in.)
> make: *** [OBJ.i686-pc-linux-gnu/gsd_img_ppm.o] Error 1
> 
> As far as I can tell ffmpeg is installed correctly (mpeg1video_encoder 
> is defined in config.h, no errors) ... any tip?

It should be declared in avcodec.h:

	extern AVCodec mpeg1video_encoder;

I don't have a config.h in the ffmpeg include directory, and
gsd_image_ppm.c doesn't #include it (in fact, if it did have
"#include <config.h>", there's no guarantee that it would be ffmpeg's
config.h which was included; config.h is a rather common name).

It appears that your version of ffmpeg isn't compatible with the OGSF
library; I can only suggest removing --with-ffmpeg from your configure
command.

-- 
Glynn Clements <glynn at gclements.plus.com>