[CMake] libxml2

[Charlene Tsai]

Hi Pau Garcia i Quiles,

Thanks for the suggestion. It works well on linux and Windows.
However, it is still not happy with MinGW. To compile with MinGW, we
need to have

TARGET_LINK_LIBRARIES( my_lib ITKCommon ITKIO libxml2)

and set ${LIBXML2_LIBRARIES} in CMake GUI to the directory where
libxml2.{lib,a,dll} can be found.

Instead, if we change the line to

TARGET_LINK_LIBRARIES( my_lib ITKCommon ITKIO ${LIBXML2_LIBRARIES} )

the errors we get are something like

C:\Isaac\Fars_Isaac\source_svn\bin\maciej_seg\libmaciejseg.a(xml_util.obj)(.text+0x3776):xml_util.cpp:
undefined reference to `_imp__xmlFree'

Any suggestions?

Charlene

On Dec 11, 2007 2:40 AM, Pau Garcia i Quiles <pgquiles at elpauer.org> wrote:
>
> Quoting Charlene Tsai <tsaicharlene at gmail.com>:
>
> > Hi,
> >
> > Could some please show me the proper way to handle libxml2 on Gentoo
> > linux. In my CMakeLists.txt, if I include the following line it works
> > on windows and some versions of linux:
> >
> >   TARGET_LINK_LIBRARIES( my_exe ITKCommon ITKIO libxml2)
> >
> > However, when trying to compile on Gentoo linux (using gcc 4.1.2) it
> > complains about not being able to find libxml2.so for linking, unless
> > I change it to:
> >
> > TARGET_LINK_LIBRARIES( my_exe ITKCommon ITKIO xml2)
> >
> > Any advice is appreciated.
>
> You should really read about how libraries and finders work in CMake.
> There is a good amount of information in the wiki and the
> Documentation section of the website.
>
> For libxml2, this is what you need:
>
> FIND_PACKAGE(LibXml2)
> TARGET_LINK_LIBRARIES( my_exe ITKCommon ITKIO ${LIBXML2_LIBRARIES} )
>
> As you are using ITK, your CMakeLists.txt should look like this:
>
> FIND_PACKAGE(ITK REQUIRED)
> IF(ITK_FOUND)
>    INCLUDE(ITK_USE_FILE)
> ENDIF(ITK_FOUND)
> FIND_PACKAGE(LibXml2 REQUIRED)
> ...
> TARGET_LINK_LIBRARIES( my_exe ITKCommon ITKIO ${LIBXML2_LIBRARIES} )
>
> --
> Pau Garcia i Quiles
> http://www.elpauer.org
> (Due to my workload, I may need 10 days to answer)
>
>
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