Bug#845321: cs2cs: epsg-file lookup problem

[Tobias Megies]

Hi Bas,

sorry for the erroneous report, the problem actually is actually a
packaging bug by Anaconda, I was not even using /usr/bin/cs2cs but
another cs2cs binary that was coming earlier in my PATH.
Using /usr/bin/cs2cs works without problems.

Sorry for bothering you with this..

regards,
Tobias





On 11/22/2016 01:52 PM, Bas Couwenberg wrote:
> Control: tags -1 unreproducible moreinfo
> 
> Hi Tobias,
> 
> On 2016-11-22 13:36, Tobias Megies wrote:
>> for me, `cs2cs` from package `proj-bin` fails to lookup the EPSG file
>> `/usr/share/proj/epsg` from package `proj-data` because it seems that
>> that path
>> is not tried when searching for the epsg file:
>>
>> ```
>> $ cs2cs +init=epsg:4326 +to +init=epsg:2975
>> Using from definition: init=epsg:4326
>> Rel. 4.9.2, 08 September 2015
>> <cs2cs>:
>> projection initialization failure
>> cause: no system list, errno: 2
>>
>> program abnormally terminated
>> ```
> 
> Please help troubleshoot this issue by setting PROJ_DEBUG=3, i.e.:
> 
>  PROJ_DEBUG=3 cs2cs +init=epsg:4326 +to +init=epsg:2975
> 
> You should see the path cs2cs is trying to open, e.g.:
> 
>  pj_open_lib(epsg): call fopen(/usr/share/proj/epsg) - succeeded
> 
> Please also ensure that PROJ_LIB is not set to a custom path by your
> .bashrc or similar:
> 
>  echo $PROJ_LIB
> 
>> With some intuition and some internet searches, this problem can be fixed
>> rather easily by setting `PROJ_LIB` env variable:
>>
>> ```
>> $ export PROJ_LIB=/usr/share/proj
>> $ echo "12 34" | cs2cs +init=epsg:4326 +to +init=epsg:2975
>> -3790598.80     14838998.02 0.00
>> ```
>>
>> However I believe the user should not need to manually set the lookup
>> path,
>> this should be handled internally by packaging. It was definitly not
>> necessary
>> to manually set this path in older package versions as I was using
>> "cs2cs" in
>> the same way on earlier Debian distributions (certainly in Debian
>> squeeze, not
>> 100% sure about Debian wheezy).
> 
> The user doesn't need to set the PROJ_LIB path, it is correct by
> default. It seems something in your environment is overriding the
> default PROJ_LIB path.
> 
> I cannot reproduce this issue on my jessie system where it uses
> /usr/share/proj by default correctly.
> 
> Kind Regards,
> 
> Bas

-- 
Dipl.-Geophys. Tobias Megies

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