[GRASS-dev] Error compiling grass6_devel

[Glynn Clements]

Moskovitz, Bob wrote:

> Today I tried to compile grass6_devel fresh from svn and got this problem:
> 
> gcc -I/home/bobm/src/gis/grass6_devel/dist.x86_64-unknown-linux-gnu/include  -g -O2    -fPIC   -DPACKAGE=\""grasslibs"\" -I/usr/local/include     -DPACKAGE=\""grasslibs"\"    -I/usr/include/ffmpeg -I/home/bobm/src/gis/grass6_devel/dist.x86_64-unknown-linux-gnu/include -o OBJ.x86_64-unknown-linux-gnu/gsd_img_mpeg.o -c gsd_img_mpeg.c
> In file included from gsd_img_mpeg.c:29:
> /usr/include/ffmpeg/avformat.h:282: warning: �AVFrac� is deprecated
> gsd_img_mpeg.c: In function �gsd_close_mpeg�:
> gsd_img_mpeg.c:439: error: incompatible type for argument 1 of �url_fclose�
> make: *** [OBJ.x86_64-unknown-linux-gnu/gsd_img_mpeg.o] Error 1

At the bottom of lib/ogsf/gsd_img_mpeg.c, change the line:

	url_fclose(&oc->pb);
to:
	url_fclose(oc->pb);

This has been fixed in 7.0 in r35270, but not backported.

> It seems to be a problem with FFMPEG.  What is FFMPEG used for anyways?

NVIZ uses it to save animations in video (AVI etc) files.

If you don't need that feature, you can use --without-ffmpeg to
disable the use of FFMPEG.

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