Re: [wxVTK] Installing wxVTK

[Mathieu M. <mat...@gm...>]

On Tue, Dec 23, 2008 at 10:53 AM, Andrey Sklyar <sky...@gm...> wrote:
> I compiled everything using cygwin, including VTK.  I used these
> options with cmake:
>
> BUILD_EXAMPLES                   ON
> BUILD_SHARED_LIBS                OFF
> BUILD_TESTING                    ON
> CMAKE_BACKWARDS_COMPATIBILITY    2.4
> CMAKE_BUILD_TYPE
> CMAKE_INSTALL_PREFIX             /usr/local
> VTK_DATA_ROOT                    /usr/src/VTKData
> VTK_USE_INFOVIS                  ON
> VTK_USE_PARALLEL                 OFF
> VTK_USE_RENDERING                ON
> VTK_USE_VIEWS                    ON
> VTK_WRAP_JAVA                    OFF
> VTK_WRAP_PYTHON                  OFF
> VTK_WRAP_TCL                     OFF

cmake option are not the important part. The important part were the
compilation flags.

export CFLAGS=blafoo
export CXXFLAGS=foobar
export CC=my_c-compiler
export CXX=my_cxx_compiler

THEN (and only afterward) can you start `cmake /path/to/src` *in an
empty* directory. Do not report *any* message where you did not start
from an empty directory !

> Would this still work with a VTK and wxVTK that was linked with cygwin?

Yes. As long as you mix dll compiled with same compiler. VTK supports
mingw type compiler (~equivalent to cygwin gcc with -mon-cygwin).

> I did, and it didn't compile, so I went to the branch.  I saw also
> that they're using SVN now (http://www.wxwidgets.org/develop/svn.htm)
> and that the cvs repository is "obsolete"
> (http://wiki.wxwidgets.org/Cvs).

I was talking about wxVTK, not wxWidgets.

http://sourceforge.net/cvs/?group_id=114757

> I don't seem to have a wxrc executable... does the path that you have
> for wxWidgets_wxrc_EXECUTABLE on your machine point to such an
> executable?  If it's not really needed, is there a way to turn it off
> (so that cmake doesn't ask you for it)?

If this does not work, replace the cmake entry with either `echo` of
`ls` those are unix cmd that are available by default on any cygwin
install. You do not need wxrc for compiling wxVTK AFAIK.

> The reason I recompiled wxWidgets was because VTK was built with
> cygwin libraries,

No. At least not the one from vtk.org.

> but wxWidgets was built without the.  This lead lead
> to the symbol mismatch problems you described.  I think that ___assert
> and ___errno were some of these symbols that weren't getting exported
> the same way and thus causing errors.

ok.

> I will do that.  Once I figure out which libraries I'm missing, how
> should I edit CMakeList.txt to have cmake add the libraries to the
> Makefile for linking?  Is there a good online reference for CMake file
> writing (I know there's the book for Kitware...)?

Check out cmake wiki, google is your friend. Or else I found this:
http://eris.liralab.it/yarp/specs/dox/dev/html/using_cmake.html

You basically need: add_executable, add_library and
target_link_libraries. Otherwise from the command line:

 $ cmake --help-commands | less

if you know cmd contains the string `foobar` but dont remember proper spelling:

 $ cmake --help-command-list | grep -i foobar
 $ cmake --help-command my_complex_foobar_doh

cmake mailing list is also an excellent ressource.

2cts

--
Mathieu