[Paraview] Intel Compiler errors out with libXML2 [PV310]

[clinton at elemtech.com]

On Tuesday 24 July 2007 3:15:49 pm Mike Jackson wrote:
> I am trying to build ParaView 3-1-0 using the Intel Compiler (Vers
> 9.x) on OS X (intel) 10.4.10. During linking I get the following
> error:
>
> Linking C shared library ../../../bin/libvtklibxml2.dylib
> xilibtool: executing 'libtool'
> ld: Undefined symbols:
> ___signbit
> libtool: internal link edit command failed
> make[2]: *** [bin/libvtklibxml2.pv3.1.dylib] Error 1
> make[1]: *** [VTK/Utilities/vtklibxml2/CMakeFiles/vtklibxml2.dir/all] Error
> 2 make: *** [all] Error 2
>
> This otherwise compiles fine with the gcc included with OS X. Out of
> curiosity I downloaded LibXML2 version 2..6.27 (of which the ParaView
> version is based off) and successfully compiled and tested it using
> the Intel Compiler.
>
> I am now guess that something went wrong when the LibXML2 sources were
> changed to work with CMake/VTK/ParaView.
>
> Anyone have any idea? I grepped the sources for "signbit" and the only
> close matches were in the "trio" sources, which are NOT compiled by
> default. I did find one reference to "signbit" in the compiled object
> file xpath.o. I looked through some of the sources of xpath.c/h and
> some of those includes but nothing obvious popped out at me.

xpath.c includes "trionan.c", which in turn includes triodef.h and trionan.h
That's how xpath.o gets it.

So when you use diff, what changes were made to the code when put into VTK?
vtk_README.txt indicates some things were changed in the trio*.h files, but 
doesn't say what.

Clint