libstdc++

[Krish]

Hi,

I build libstdc++ for am33 platform on linux 6.2.
When I run the tests, everything works fine except tstring.cc with the
following linking options:

my-target-gcc -g -02 -fvtable-thunks -D_GNU_SOURCE -o tstring
tstring.o -L../../../../usr/lib -lpthread -L.. -lstdc++

it generates the following errors:
../libstdc++.a(stdstrbufs.o)(.data+ox210): first defined here

../libstdc++.a(stdstrbufs.o)(.data+oxac): undefined reference to
'_vt_7filebuf'

 ../libstdc++.a(stdstrbufs.o)(.data+ox15c): undefined reference to
'_vt_7filebuf'

../libstdc++.a(stdstrbufs.o)(.data+ox20c): undefined reference to
'_vt_7filebuf'

----------
If I use -lpthread after -lstdc++ while linking, tstring works, but
tcomplex.cc fails at execution, generates the segmentation fault.

Any help?