[flext] error while compiling parch PD

[Thomas Grill]

Hi Alessandro,
there are two existing build system for flext-based externals that  
have been used successfully in the past. The flext build system  
(described in readme.txt and build.txt) and the newer autoconf-based  
system. My suggestion would be to try those first before using  
Codeblocks or other untested systems.
gr~~~

Am 12.05.2011 um 15:29 schrieb alessandro mason:

> I've tried to ling dll library, to make the suggested corrections,  
> but nothing changes.
> So, i've implemented the external under Linux/Debian with codeblocks  
> and I compile the file with no errors.
> I've changed the extention of the created library from .so  
> to .pd_linux and i've load the external in PD. But the PD console  
> shows this error:
> ./libplus.pd_linux: ./libplus.pd_linux: undefined symbol:  
> _ZN17flext_base_single4InitEv
>
> What can I do?
>
> PS. Sorry for my English :-D
>
> 2011/5/12 Thomas Grill <gr at grrrr.org>
> Hi,
> if i remember correctly, compilation in shared mode under Windows  
> requires linkage to flext-pd.dll, not to the static library.
> I would also suggest to set FLEXT_SHARED and FLEXT_USE_CMEM macros  
> with the compiler (or the Codeblocks environment) and not in the  
> source code, since those settings must be uniform in a project (e.g.  
> with multiple source files).
> gr~~~
>
> Am 12.05.2011 um 12:27 schrieb alessandro mason:
>
>> I'm sorry.
>>
>> I use Codeblocks with MinGW  under WINDOWS for write and compile  
>> the code. I link the library flext-pd.lib and set the directories  
>> for headers files and I've add the flag FLEXT_SYS=2.
>>
>> Alessandro
>>
>> 2011/5/12 Thomas Grill <gr at grrrr.org>
>> Hi Alessandro,
>> it would be most useful to know how you compile your code.
>> gr~~~
>>
>> Am 12.05.2011 um 12:01 schrieb alessandro mason:
>>
>> Hi,
>> I'm trying to implement this external for pd:
>> #define FLEXT_SHARED 1
>> #define FLEXT_USE_CMEM 1
>> // include flext header
>> #include <flext.h>
>> // check for appropriate flext version
>> #if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 401)
>> #error You need at least flext version 0.4.1
>> #endif
>>
>> class plus: public flext_base
>> {
>> FLEXT_HEADER(plus,flext_base)
>>
>> float f1,f2;
>>
>> plus(float f): f1(0), f2(f) //costructor#
>> {
>>    AddInAnything("Bang or Number");
>>    AddInFloat("Argument");
>>    AddOutFloat("Result");
>>
>>    FLEXT_ADDBANG(0, m_bang);  // add methods
>>    FLEXT_ADDMETHOD(0,m_float);
>>    FLEXT_ADDMETHOD(1,m_arg);
>> }
>>
>> inline void m_bang() {ToOutFloat(0,f1+f2);}
>> inline void m_float(float f) {ToOutFloat(0,(f1=f)+f2);}
>> inline void m_arg(float f) {f2=f;}
>>
>> FLEXT_CALLBACK(m_bang);  //callback wrappers
>> FLEXT_CALLBACK_F(m_float);
>> FLEXT_CALLBACK_F(m_arg);
>>
>> };
>> FLEXT_NEW_1("plus",plus,float0) // set up class
>>
>>
>> When I compile the file occours a lot of errors like this:
>>
>> obj\Release\main.o:main.cpp|| undefined reference to  
>> `flext_obj_shared::obj_add(bool, bool, bool, bool, char const*,  
>> char const*, void (*)(flext_class*), flext_obj_shared* (*)(int,  
>> _atom*), void (*)(flext_hdr*), int, ...)'|.
>>
>> How can I resolve this problem? Thanks
>>
>> Mason Alessandro
>> _______________________________________________
>> http://grrrr.org/ext/flext
>>
>> flext mailing list
>> flext at grrrr.org
>> http://grrrr.org/cgi-bin/mailman/listinfo/flext
>>
>> --
>> Thomas Grill
>> http://grrrr.org
>> +43 699 19715543
>>
>>
>>
>>
>
>
> --
> Thomas Grill
> http://grrrr.org
> +43 699 19715543
>
>
>
>

--
Thomas Grill
http://grrrr.org
+43 699 19715543



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