yade-dev team mailing list archive

[boon chiaweng <booncw@xxxxxxxxxxx>]

I did this:

root@engs-018383:/usr/local/lib# ar -x libopt.a
root@engs-018383:/usr/local/lib# g++ -shared -fPIC *.o -o libopt.so
/usr/bin/ld: dqrdc.o: relocation R_X86_64_32 against `a local symbol' can not be used when making a shared object; recompile with -fPIC
dqrdc.o: could not read symbols: Bad value

May I know which "key words" in the configure file should I look whether I can create a shared library?  It's not mentioned in the installation instructions.  Thanks, Vaclav, for helping me out.


Yours,

Boon
----------------------------------------
> From: eudoxos@xxxxxxxx
> To: yade-dev@xxxxxxxxxxxxxxxxxxx
> Date: Thu, 1 Apr 2010 12:20:11 +0200
> Subject: Re: [Yade-dev] General assistance
>
>
>> Hmm. I reinstalled the external plugin, by changing its ./configure script. Added -fPIC to its CFLAGS, CXXFLAGS and FFFLAGS. It looks something like that:
>> CFLAGS = -g -O2 -fPIC
>>
>> Then it appears in the makefile. I deleted the old libopt.a, and ran 'make install' to create it again. But YADE still gives me the same error. Do you know what I should do? I am really lost.
> Have a look if there is no way to create shared library (.so) from that
> program. If it is just a few files, you can do it by hand, too -- using
> scons separately or just by writing the compilation by hand, something
> like (not tested):
>
> gcc -shared -fPIC -o libopt.so *.c
>
> v.
>
>
>
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