[GRASSLIST:441] Re: Re: grass programming

[marcos boullón magán]

But your code DOES compile (pointing to the gis.h file)...

marcos at venux:~/cvsgrass/devel/tmp$ cat prot1.c
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include "../../grass6/include/gis.h"
int main(int argc, char **argv) {
  printf("Argv[0] = %s\n", argv[0]) ;
  G_gisinit("prot1") ;
  printf("G_program_name => %s\n", G_program_name()) ;
}

marcos at venux:~/cvsgrass/devel/tmp$ mkdir OBJ.i686-pc-linux-gnu

marcos at venux:~/cvsgrass/devel/tmp$ gcc
-I/home/marcos/cvsgrass/grass6/dist.i686-pc-linux-gnu/include  -g -O2 
-Wall -Wconversion -Wno-implicit-int       -DPACKAGE=\""grassmods"\" 
-I/home/marcos/cvsgrass/grass6/dist.i686-pc-linux-gnu/include -o
OBJ.i686-pc-linux-gnu/prot1.o -c prot1.c
prot1.c: En la función `main':
prot1.c:23: aviso: control reaches end of non-void function

marcos at venux:~/cvsgrass/devel/tmp$ gcc
-L/home/marcos/cvsgrass/grass6/dist.i686-pc-linux-gnu/lib
-Wl,--export-dynamic
-Wl,-rpath-link,/home/marcos/cvsgrass/grass6/dist.i686-pc-linux-gnu/lib
    -DPACKAGE=\""grassmods"\" -o
/home/marcos/cvsgrass/grass6/dist.i686-pc-linux-gnu/bin/prot1
OBJ.i686-pc-linux-gnu/prot1.o  -lgrass_gis -lgrass_datetime -lz   
-lgrass_segment -lm  -lz

marcos at venux:~/cvsgrass/devel/tmp$ dir
/home/marcos/cvsgrass/grass6/dist.i686-pc-linux-gnu/bin/prot1
-rwxr-xr-x  1 marcos marcos 32173 2006-03-28 13:26
/home/marcos/cvsgrass/grass6/dist.i686-pc-linux-gnu/bin/prot1


... and also DOES work under GRASS...

marcos at venux:~/cvsgrass/devel/tmp$ grass61
[...]

GRASS 6.1.cvs (spearfish60):~/cvsgrass/devel/tmp >
../../grass6/dist.i686-pc-linux-gnu/bin/prot1
Argv[0] = ../../grass6/dist.i686-pc-linux-gnu/bin/prot1
G_program_name => prot1


Just remember, you need a succesfully GRASS install to be able to
compile your own code.

M.

2006/3/28, Ana Soares <tiobrothercamarada at gmail.com>:
>
> Noooo! :-S
>
>  As I've show in the output....
>
>
> 28 Mar 2006 10:47:19 -0000, Nitin <grasschoper at rediffmail.com>:
> >
> >
> >
> >
> >  problem solved?
> >
> >
> >  On Tue, 28 Mar 2006 Ana Soares wrote :
> >
> >  >28 Mar 2006 10:29:53 -0000, No Name <grasschoper at rediffmail.com>:
> >  > >
> >  > >
> >  > > check path of "gis.h " in ur makefile and don't forget to link gis
> >  > > library.
> >
> >  > >
> >  > >
> >  > >
> >  > > On Tue, 28 Mar 2006 Ana Soares wrote :
> >  > > >Hei :-)
> >  > > >
> >  > > >I already did that.
> >  > > >
> >  > > >My problem is how to integrate that in a program of my own.
> >  > > >For example,
> >  > > >
> >  > > >#include <stdio.h>
> >  > > >
> >  > > >#include "interface.h"
> >  > > >#include <unistd.h>
> >  > > >#include <stdlib.h>
> >  > > >
> >  > > >#include "gis.h"
> >  > > >
> >  > > >
> >  > > >int main(int argc, char **argv) {
> >  > > >
> >  > > >  printf("Argv[0] = %s\n", argv[0]) ;
> >  > > >
> >  > > >  G_gisinit("prot1") ;
> >  > > >
> >  > > >  printf("G_program_name => %s\n", G_program_name()) ;
> >  > > >
> >  > > >  // if (G_parser(argc, argv))
> >  > > >  //exit (-1);
> >  > > >
> >  > > >  //  ask_interface() ;
> >  > > >
> >  > > >}
> >  > > >
> >  > > >I don 't understant why this doesn't work :-(
> >  > > >
> >  > > >Output :
> >  > > >seabiscuit at ubuntu:~/Estagio/GRASS_Prototipo1$ ./prot1
> >  > > >Argv[0] = ./prot1
> >  > > >
> >  > > >bla
> >  > > >
> >  > > >
> >  > > >
> >  > > >
> >  > > >
> >  > > >
> >  > > >
> >  > > >
> >  > > >
> >  > > >
> >  > > >
> >  > > >
> >  > > >
> >  > > >seabiscuit at ubuntu:~/Estagio/GRASS_Prototipo1$
> >  > > >
> >  > > >(this stopped because I did Ctr C)
> >  > > >
> >  > > >This is what I'm having trouble understanding ....
> >  > > >Help please :-)
> >  > > >
> >  > > >
> >  > > >
> >  > > >28 Mar 2006 10:08:10 -0000, No Name <grasschoper at rediffmail.com>:
> >  > > > >
> >  > > > >
> >  > > > > there a programmers manual available in download section on official
> >  > > sitye
> >  > > > > of GRASS. Give some time on reading it.
> >  > > > >
> >  > > > > enjoy grass
> >  > > > > nitin
> >  > > > >
> >  > > > > On Tue, 28 Mar 2006 Ana Soares wrote :
> >  > > > >
> >  > > > > >Thanks!
> >  > > > > >
> >  > > > > >That really helped :) But I have a lttle problem : I can't compile
> >  > > it!
> >  > > > > >Any hints ?
> >  > > > > >
> >  > > > > >Thanks :-)
> >  > > > > >
> >  > > > > >2006/3/27, Massimiliano Cannata <massimiliano.cannata at supsi.ch>:
> >   > > > > > >
> >  > > > > > > Ana Soares wrote:
> >  > > > > > >
> >  > > > > > > > Hello :-)
> >  > > > > > > >
> >  > > > > > > > I'm getting really desperate with grass ...
> >  > > > > > > > I want to use its libraries in my C program, but I can't seem to
> >  > > > > even
> >  > > > > > > > understand how to use G_gisinit :(
> >  > > > > > > >
> >  > > > > > > > Is there any manual that you recommend to helo me out?
> >  > > > > > > >
> >  > > > > > > > Help / Rescue would be very much appreciated!!
> >  > > > > > > >
> >  > > > > > > > Thanks :-)
> >  > > > > > >
> >  > > > > > > give a look to r.example and v.exaple files
> >  > > > > > > (http://grass.itc.it/devel/index.php)
> >  > > > > > > hope it helps...
> >  > > > > > > Max
> >  > > > > > >
> >  > > > > > > --
> >  > > > > > >
> >  > > > > > > Eng. Massimiliano Cannata
> >  > > > > > > Scuola Universitaria Professionale della Svizzera Italiana
> >  > > > > > > Istituto Scienze della Terra
> >  > > > > > > Via Trevano, c.p. 72
> >  > > > > > > CH-6952 Canobbio-Lugano
> >  > > > > > > Tel: +41 (0)58 666 62 18
> >  > > > > > > Fax +41 (0)58 666 62 09
> >  > > > > > >
> >  > > > > > >
> >  > > > > > >
> >  > > > >
> >  > > > >
> >  > > > >
> >  > > > > <
> >
> >  > > http://adworks.rediff.com/cgi-bin/AdWorks/sigclick.cgi/www.rediff.com/signature-home.htm/1507191490@Middle5?PARTNER=3
> >  > > >
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--
-- marcos boullón magán