Re: SCM_BOOL_T became #nil ?

[Hans Aberg]

On 22 Feb 2011, at 12:44, nalaginrut wrote:

>>>> The problem is SCM_BOOL_T convert to #nil, and (not #nil)==>#t ! So I
>>>> can't get a logical result.
>>> 
>>> I believe this indicates that you compiled this extension against
>>> headers from 1.8 or earlier.  Not sure how you managed that :)
>> 
>> I noticed that that is possible - in fact, to make sure to get it right, I 
>> removed all Guile headers in /usr/local/include/ and reinstalled guile-2.0.
>> 
>> The Guile 1.8 header libguile.h is in /usr/local/include/, but the one from 
>> 2.0 is in /usr/local/include/guile/2.0/. Both directories are included when 
>> compiling. So if the include order is wrong, or the from 2.0 is somehow 
>> excluded, you may get the wrong one, and it may in fact compile.
>> 
>> Perhaps 2.0 should have some check that it gets the right header.
> 
> Well~I modified the include path and it's done.
> Thanks all!

If you use `guile-config compile` (and `guile-config link`) in your Makefile it 
will come out right.