Re: GMT 5 API simple question

The Windows installers declare the GMT5_SHAREDIR variable. We use 
GMT5_... because a GMT_SHAREDIR may exist if GMT4 is installed but it 
should otherwise play exactly the same role. If it doesn't, than we have 
a bug.

Joaquim


> Yes, if I set under windows GMT_SHAREDIR=C:\gmt5\share (my gmt5 
> location) API object  is
> created.
>
> But it means that all GMT based programs must have GMT share dir, and 
> possibly have coatsline
> files as well (?)
>
> It also appeared that GMT shell created by the installer does not have 
> this variable,
> because my example cannot create API object if it is ran under that 
> cmd window.
>
> Mikhail
>
> On 11/18/2013 11:00 PM, Mikhail Tchernychev wrote:
>> I was debugging this issue and found that it is related to 
>> "GMT_SHAREDIR", VERSION file
>> and fonts and could be something else. All these variables should be 
>> set correctly for API program to work (I did not make it so far).
>> Despite excessive diagnostic in GMT code there is nothing which comes 
>> to stderr.
>>
>> I was debugging under Linux
>>
>> Would be it possible to enable all that build-in diagnostic for API?
>>
>> Best Regards
>>
>> Mikhail
>>
>> On 11/18/2013 10:18 PM, Mikhail Tchernychev wrote:
>>> Hi Paul,
>>>
>>> Unfortunately it did not look like "windows only" problem.
>>> I've just re-compiled under Linux using one of the latest dev packages
>>> and got the same.
>>>
>>> I used command to compile:
>>>
>>>  c++ -o mytest -I ../src  mytest.cpp -L ../build/src/  -lgmt
>>>
>>> then
>>>
>>> export LD_LIBRARY_PATH=../build/src/
>>>
>>> Everything compiles  and runs, but apparently GMT_Create_Session just
>>> exits the program.
>>>
>>> I tried "NULL" in place function pointer; result is the same.
>>>
>>> Do we need some #define setting to compile it?
>>>
>>> Best Regards
>>> Mikhail
>>>
>>> On 11/18/2013 6:52 PM, Paul Wessel wrote:
>>>> Mikhail-
>>>>
>>>> Unless Joaquim has tried I don't think anyone has tried this under 
>>>> Windows yet.  Thanks for being our first!
>>>>
>>>> If it dies in GMT_Create_Session then it would be interesting to 
>>>> run it in debug and see what goes on.  Probably something simple 
>>>> that just has not been tested.  Given your print_func you might as 
>>>> well just pass NULL instead, but doubt that would make a difference
>>>> Joaquim, could you try this and see what is happening?
>>>>
>>>> -p
>>>>
>>>> On Nov 18, 2013, at 3:41 PM, Mikhail Tchernychev 
>>>> <[email protected] <mailto:[email protected]>> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> I am just trying to compile very simple example with GMT 5.0 API
>>>>> using VS 2010 Express. Here is the code:
>>>>>
>>>>> // sample1.cpp : Defines the entry point for the console application.
>>>>> //
>>>>>
>>>>> #include <stdio.h>
>>>>> #include <stdlib.h>
>>>>>
>>>>> #include "gmt.h"
>>>>>
>>>>> int print_func(FILE * dat, const char * msg) {
>>>>>     fprintf(stderr,"Message: %s\n", msg);
>>>>>     return 1;
>>>>> }
>>>>>
>>>>>
>>>>> int main(int argc, char ** )
>>>>> {
>>>>>
>>>>>     fprintf(stderr,"Point 1\n");
>>>>>     void *API = GMT_Create_Session ("Session name", 2, 0, print_func);
>>>>>     if(API) {
>>>>>         fprintf(stderr,"Created GMT API!\n");
>>>>>     }
>>>>>     return 0;
>>>>> }
>>>>>
>>>>> Everything compiles and runs just fine after I added GMT dlls in 
>>>>> the PATH.
>>>>>
>>>>> But functions GMT_Create_Session just does hard exit no matter what
>>>>> (Point "Created GMT API!" never reached).
>>>>>
>>>>> Am I missing something simple?  Is there any examples if API based 
>>>>> code?
>>>>>
>>>>> I am using binary file "gmt-5.1.0-win32.exe 
>>>>> <http://gmt.soest.hawaii.edu/files/download?name=gmt-5.1.0-win32.exe>"
>>>>>
>>>>> That you!
>>>>>
>>>>> Mikhail
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
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