Question on "undefined versioned symbol name" problem.

[Peng Zhao]

Hi,


        When I compile gimp on my linux box, I met some problem:

gcc -shared gimp.lo gimpbrushes_pdb.lo gimpbrushselect_pdb.lo
gimpchannel_pdb.lo gimpchannelops_pdb.lo gimpcolor_pdb.lo
gimpconvert_pdb.lo gimpdisplay_pdb.lo gimpdrawable_pdb.lo gimpedit_pdb.lo
gimpfileops_pdb.lo gimpfloatingsel_pdb.lo gimpgimprc_pdb.lo
gimpgradients_pdb.lo gimpgradientselect_pdb.lo gimpguides_pdb.lo
gimphelp_pdb.lo gimpimage_pdb.lo gimplayer_pdb.lo gimpmessage_pdb.lo
gimpmisc_pdb.lo gimppalette_pdb.lo gimpparasite_pdb.lo gimppaths_pdb.lo
gimppatterns_pdb.lo gimppatternselect_pdb.lo gimpplugin_pdb.lo
gimpproceduraldb_pdb.lo gimpselection_pdb.lo gimptexttool_pdb.lo
gimptools_pdb.lo gimpundo_pdb.lo gimpunit_pdb.lo gimpcolorspace.lo
gimpchannel.lo gimpdrawable.lo gimpenv.lo gimpgradientselect.lo
gimphelp.lo gimpimage.lo gimplayer.lo gimpmatrix.lo gimpparasite.lo
gimpparasiteio.lo gimppixelrgn.lo gimpproceduraldb.lo gimpprotocol.lo
gimpselection.lo gimpsignal.lo gimptile.lo gimpunit.lo gimputils.lo
gimpvector.lo gimpwire.lo -L/usr/lib -lglib -lm -lc -Wl,-soname
-Wl,libgimp-1.2.so.2 -o .libs/libgimp-1.2.so.2.0.0 

/usr/bin/ld: .libs/libgimp-1.2.so.2.0.0: undefined versioned symbol name
sincos@@GLIBC_2.2 
/usr/bin/ld: failed to set dynamic section sizes: Bad value

My ld version is GNU ld version 2.11.90.0.8 (with BFD 2.11.90.0.8)

When I eliminate "-lm" in the command line, it process smoothly. I am just
curious what cause this kind of problem. From the google searching result
on this topic, I can find few meaningful explanation for me.

And I would like to ask you some other questions: 

1. in linux, how to check the version of glibc I link

2. Sometimes there are several implementation of certain lib subroutines
(e.g. drand48()). They appear in different libraries. How to check which
drand48 is linked in compilation?

Thank you very much and happy new year.

                                        Peng