[GRASS-dev] Testing needed for v.buffer2

[Glynn Clements]

Martin Landa wrote:

> > My mentor Wolf and I are experiencing problems with the new buffer
> > module. For some certain input it works well on my system but doesn't
> > finish at all on Wolf's. We need some help to figure out what's
> 
> [...]
> 
> hm strange, I cannot compile v.buffer2
> 
> gcc -I/home/landa/src/grass6_devel/dist.i686-pc-linux-gnu/include
> -Wall -Werror-implicit-function-declaration -fno-common -Wextra
> -Wunused    -I/home/landa/usr/include    -DPACKAGE=\""grassmods"\"
> -I/home/landa/src/grass6_devel/dist.i686-pc-linux-gnu/include -o
> OBJ.i686-pc-linux-gnu/e_intersect.o -c e_intersect.c
> e_intersect.c: In function 'segment_intersection_2d_tol':
> e_intersect.c:352: error: implicit declaration of function 'fmax'
> e_intersect.c:352: warning: incompatible implicit declaration of
> built-in function 'fmax'
> e_intersect.c:369: error: implicit declaration of function 'fmin'
> e_intersect.c:369: warning: incompatible implicit declaration of
> built-in function 'fmin'
> 
> fmax and fmin should be declared in math.h (which is included) ...

fmax/fmin are C99. You may need to use e.g. -D_ISOC99_SOURCE in order
for them to be available.

This should be fixed (i.e. replace with a macro) before the code is
moved into the main tree. We shouldn't require C99 unnecessarily (and
this is unnecessary).

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