[GRASS-dev] remove raster map in C code

Luca Delucchi lucadeluge at gmail.com
Fri May 11 02:54:44 PDT 2018


On 11 May 2018 at 10:54, Markus Metz <markus.metz.giswork at gmail.com> wrote:
> Hi Luca,
>

Hi Markus,

> On Fri, May 11, 2018 at 10:26 AM, Luca Delucchi <lucadeluge at gmail.com>
> wrote:
>>
>> Hi devs,
>>
>> I would like to remove a raster map inside a C module, looking aroung
>> I found the M_do_remove function used in g.remove and r.reclass. So I
>> tried to use it but I get error in compilation
>>
>> OBJ.x86_64-pc-linux-gnu/main.o: In function `main':
>> main.c:(.text.startup+0x9eb): undefined reference to `M_get_element'
>> main.c:(.text.startup+0x9f5): undefined reference to `M_do_remove'
>> collect2: error: ld returned 1 exit status
>
> this is a problem of the linker: you need to link against the manage lib,
> see e.g. the Makefile for g.remove. Try
>
> LIBES = $(MANAGELIB) $(RASTERLIB) $(GISLIB)
> DEPENDENCIES = $(MANAGEDEP) $(RASTERDEP) $(GISDEP)
>
> in the Makefile of your module.
>

thanks, now it compile but I get "Segmentation fault", the module is
r.tile, I attached the diff, could someone have a look to it please?

> HTH,
>
> Markus M
>



-- 
ciao
Luca

www.lucadelu.org
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