[wxVTK] Installing wxVTK

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Hi all,

I am having some trouble linking the samples provided with wxVTK.
Could somebody please point me to a reference that explains:

- how one should install wxWidgets in order for it to work with wxVTK
- how one should install VTK to have it work with wxVTK
- how to compile and link the sample programs provided with wxVTK using cmake
- what wxWidgets_CONFIG_EXECUTABLE and wxWidgets_wxrc_EXECUTABLE are
- how to have cmake find those directories automatically

For anyone who wants to know more about what I did specifically to
come up with these questions, a detailed description is below.

- Andrey

Details:
-----------------------------------------------------
I'm running cygwin 1.5.25 on Windows XP.
I'm using
- g++ version 3.4.4 (sygming special, gdc 0.12, using dmd 0.125)
- cmake version 2.6-patch 2
- VTK 5.2.0
- wxWidgets version 2.8

VTK Setup
-----------------------------------------------------
I installed VTK on 10/29/2008.  I am able to run the sample programs
that came with it.

wxWidgets Setup
-----------------------------------------------------
I acquired and compiled wxWidgets following directions on
http://wiki.wxwidgets.org/Cygwin

I entered this in the shell (following the "To get an executable
independent of Cygwin DLL" directions)

$ cvs -d :pserver:an...@cv...:/pack/cvsroots/wxwidgets
checkout -r WX_2_8_BRANCH wxMSW
$ cd wxWidgets
$ export CFLAGS=-mno-cygwin
$ export CPPFLAGS=-mno-cygwin
$ export CXXFLAGS=-mno-cygwin
$ export LDFLAGS="-mno-cygwin -mwindows"
$ ./configure --with-msw --enable-debug --enable-debug_gdb
--disable-shared --with-libjpeg=builtin --disable-precomp-headers
--without-expat
$ make

I downloaded the provided hworld.cpp and successfully generated the GUI.

wxVTK Setup
-----------------------------------------------------
I then proceeded to try to get wxVTK to work.
I downloaded wxVTK from

http://sourceforge.net/project/showfiles.php?group_id=114757&package_id=124328&release_id=603693

and extracted it to ~/wxVTK

I then copied all the files needed for compiling the samples to a new
directory and did an out of source build using cmake

$ mkdir ~/test
$ cd ~/test
$ mkdir src
$ mkdir bin
$ cd ~/wxVTK
$ cp -r src/ Sample/ CMakeLists.txt ~/test/src
$ cd ~/test/bin
$ ccmake ../src

This lead to the first stopping point.  There were two variables:

wxWidgets_CONFIG_EXECUTABLE
wxWidgets_wxrc_EXECUTABLE

That are not described or explained anywhere (google or otherwise).  I
ended up looking through the FindwxWidgets.cmake module in both

~/wxVTK/Modules
/usr/share/cmake-2.6.2/Modules

The one that came with cmake had a little bit of an explanation as to
what the parameters were.  I ended up running make install on both vtk
and wxWidgets so that they would be in directories the script would
look in (on the path).  In the end, I got that

wxWidgets_CONFIG_EXECUTABLE = /usr/local/bin/wx-config
which is a pointer to usr/ocal/lib/wx/config/msw-ansi-debug-static-2.8
- what is this and why is it needed for using wxWidgets?

Getting a value for wxWidgets_wxrc_EXECUTABLE was harder.  Using
FindwxWidgets.cmake that came with wxVTK, it just kept telling me
"Cannot find wxWidgets libraries and/or header files."  Using the
FindwxWidgets.cmake that came with cmake accepted /usr/local/lib/wx,
/usr/local/include/wx-2.8/wx, /usr/local/include/wx-2.8, it doesn't
seem to care what you put there.  I expect that this is where my
problems are coming from.  In the end I kept

wxWidgets_wxrc_EXECUTABLE = /usr/local/include/wx-2.8

I generated the make file and ran make.  It wxImagePlaneWidgets.cxx
and then wxVTKRenderWindowInteractor.cxx, then tried to link them, and
spewed a lot of errors concerning ___assert and ___errno.
Unfortunately I didn't save the errors and have recompiled wxWindows
since then and don't want to spend a third hour recompiling that
library.  Upon examining wxVTKRenderWindowInteractor.cxx I saw that it
used <assert.h> and the assert macro.  It seemed like the linker
wasn't linking libc because I compiled wxWidgets with -mno-cygwin,
thus leading to ___assert and ___errno not being found when linking.

I recompiled wxWidgets without the -mno-cygwin flags.  I used these
commands in the wxWidgets directory:
$ ./configure --with-msw --enable-debug --enable-debug_gdb
--disable-shared --with-libjpeg=builtin
$ make

The ___assert and ___errno errors promptly disappeared, but the linker
is still complaining.  I tried building the samples again using the
same cmake configuration as before and I am currently received the
warning

/usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../../i686-pc-cygwin/bin/ld:
warning: auto-importing has been activated without
--enable-auto-import specified on the command line.
This should work unless it involves constant data structures
referencing symbols from auto

Seems like it didn't work... The full error message is below:

$ make
Scanning dependencies of target wxImagePlaneWidget
[ 10%] Building CXX object
CMakeFiles/wxImagePlaneWidget.dir/Sample/wxImagePlaneWidget.cxx.o
[ 20%] Building CXX object
CMakeFiles/wxImagePlaneWidget.dir/src/wxVTKRenderWindowInteractor.cxx.o
Linking CXX executable bin/wxImagePlaneWidget.exe
/usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../../i686-pc-cygwin/bin/ld:
warning: auto-importing has been activated without
--enable-auto-import specified on the command line.
This should work unless it involves constant data structures
referencing symbols from auto
-imported DLLs./usr/local/lib/libwx_mswd_core-2.8.a(corelib_window.o):/usr/src/wxWidgets/.
/src/msw/window.cpp:1340: undefined reference to
`wxSystemOptions::GetOptionInt(wxString const&)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_window.o):/usr/src/wxWidgets/./src/msw/window.cpp:3956:
undefined reference to `_wxEVT_POWER_SUSPENDING'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_window.o):/usr/src/wxWidgets/./src/msw/window.cpp:3960:
undefined reference to `_wxEVT_POWER_SUSPEND_CANCEL'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_window.o):/usr/src/wxWidgets/./src/msw/window.cpp:3964:
undefined reference to `_wxEVT_POWER_SUSPENDED'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_window.o):/usr/src/wxWidgets/./src/msw/window.cpp:3971:
undefined reference to `_wxEVT_POWER_RESUME'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_wincmn.o): In function
`wxWindowBase':/usr/src/wxWidgets/./src/common/wincmn.cpp:212:
undefined reference to `wxSystemOptions::HasOption(wxString const&)'
/usr/src/wxWidgets/./src/common/wincmn.cpp:214: undefined reference to
`wxSystemOptions::GetOptionInt(wxString const&)'
/usr/src/wxWidgets/./src/common/wincmn.cpp:212: undefined reference to
`wxSystemOptions::HasOption(wxString const&)'
/usr/src/wxWidgets/./src/common/wincmn.cpp:214: undefined reference to
`wxSystemOptions::GetOptionInt(wxString const&)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_colourcmn.o): In function
`_ZlsR9wxVariantRK8wxColour':
/usr/src/wxWidgets/./src/common/colourcmn.cpp:141: undefined reference
to `wxVariant::SetData(wxVariantData*)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_colourcmn.o): In function
`__static_initialization_and_destruction_0':
/usr/src/wxWidgets/./src/common/colourcmn.cpp:29: undefined reference
to `wxVariantData::ms_classInfo'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_colourcmn.o): In function
`~wxVariantData':
/usr/src/wxWidgets/./include/wx/variant.h:99: undefined reference to
`vtable for wxVariantData'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_colourcmn.o): In function
`wxVariantData':
/usr/src/wxWidgets/./include/wx/variant.h:68: undefined reference to
`vtable for wxVariantData'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_font.o):/usr/src/wxWidgets/./src/msw/font.cpp:431:
undefined reference to `wxSystemOptions::GetOptionInt(wxString
const&)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_dc.o):/usr/src/wxWidgets/./src/msw/dc.cpp:1213:
undefined reference to `wxSystemOptions::GetOptionInt(wxString
const&)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_dc.o):/usr/src/wxWidgets/./src/msw/dc.cpp:2138:
undefined reference to `wxSystemOptions::GetOptionInt(wxString
const&)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_tbar95.o):/usr/src/wxWidgets/./src/msw/tbar95.cpp:570:
undefined reference to `wxSystemOptions::HasOption(wxString const&)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_tbar95.o):/usr/src/wxWidgets/./src/msw/tbar95.cpp:570:
undefined reference to `wxSystemOptions::GetOptionInt(wxString
const&)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_statbox.o):/usr/src/wxWidgets/./src/msw/statbox.cpp:211:
undefined reference to `wxSystemOptions::GetOptionInt(wxString
const&)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_statbox.o):/usr/src/wxWidgets/./include/wx/sysopt.h:40:
undefined reference to `wxSystemOptions::HasOption(wxString const&)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_statbox.o):/usr/src/wxWidgets/./include/wx/sysopt.h:40:
undefined reference to `wxSystemOptions::GetOptionInt(wxString
const&)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o): In function
`~wxSizer':/usr/src/wxWidgets/./src/common/sizer.cpp:509: undefined
reference to `wxClientDataContainer::~wxClientDataContainer()'
/usr/src/wxWidgets/./src/common/sizer.cpp:509: undefined reference to
`wxClientDataContainer::~wxClientDataContainer()'
/usr/src/wxWidgets/./src/common/sizer.cpp:509: undefined reference to
`wxClientDataContainer::~wxClientDataContainer()'
/usr/src/wxWidgets/./src/common/sizer.cpp:509: undefined reference to
`wxClientDataContainer::~wxClientDataContainer()'
/usr/src/wxWidgets/./src/common/sizer.cpp:509: undefined reference to
`wxClientDataContainer::~wxClientDataContainer()'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):/usr/src/wxWidgets/./src/common/sizer.cpp:509:
more undefined references to
`wxClientDataContainer::~wxClientDataContainer()'
follow
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o): In function `wxSizer':
/usr/src/wxWidgets/./include/wx/sizer.h:410: undefined reference to
`wxClientDataContainer::wxClientDataContainer()'
/usr/src/wxWidgets/./include/wx/sizer.h:410: undefined reference to
`wxClientDataContainer::~wxClientDataContainer()'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV16wxStaticBoxSizer[vtable
for wxStaticBoxSizer]+0x7c): undefined reference to
`wxClientDataContainer::DoSetClientObject(wxClientData*)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV16wxStaticBoxSizer[vtable
for wxStaticBoxSizer]+0x80): undefined reference to
`wxClientDataContainer::DoGetClientObject() const'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV16wxStaticBoxSizer[vtable
for wxStaticBoxSizer]+0x84): undefined reference to
`wxClientDataContainer::DoSetClientData(void*)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV16wxStaticBoxSizer[vtable
for wxStaticBoxSizer]+0x88): undefined reference to
`wxClientDataContainer::DoGetClientData() const'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV10wxBoxSizer[vtable
for wxBoxSizer]+0x7c): undefined reference to
`wxClientDataContainer::DoSetClientObject(wxClientData*)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV10wxBoxSizer[vtable
for wxBoxSizer]+0x80): undefined reference to
`wxClientDataContainer::DoGetClientObject() const'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV10wxBoxSizer[vtable
for wxBoxSizer]+0x84): undefined reference to
`wxClientDataContainer::DoSetClientData(void*)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV10wxBoxSizer[vtable
for wxBoxSizer]+0x88): undefined reference to
`wxClientDataContainer::DoGetClientData() const'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV15wxFlexGridSizer[vtable
for wxFlexGridSizer]+0x7c): undefined reference to
`wxClientDataContainer::DoSetClientObject(wxClientData*)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV15wxFlexGridSizer[vtable
for wxFlexGridSizer]+0x80): undefined reference to
`wxClientDataContainer::DoGetClientObject() const'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV15wxFlexGridSizer[vtable
for wxFlexGridSizer]+0x84): undefined reference to
`wxClientDataContainer::DoSetClientData(void*)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV15wxFlexGridSizer[vtable
for wxFlexGridSizer]+0x88): undefined reference to
`wxClientDataContainer::DoGetClientData() const'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV11wxGridSizer[vtable
for wxGridSizer]+0x7c): undefined reference to
`wxClientDataContainer::DoSetClientObject(wxClientData*)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV11wxGridSizer[vtable
for wxGridSizer]+0x80): undefined reference to
`wxClientDataContainer::DoGetClientObject() const'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV11wxGridSizer[vtable
for wxGridSizer]+0x84): undefined reference to
`wxClientDataContainer::DoSetClientData(void*)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV11wxGridSizer[vtable
for wxGridSizer]+0x88): undefined reference to
`wxClientDataContainer::DoGetClientData() const'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV7wxSizer[vtable
for wxSizer]+0x7c): undefined reference to
`wxClientDataContainer::DoSetClientObject(wxClientData*)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV7wxSizer[vtable
for wxSizer]+0x80): undefined reference to
`wxClientDataContainer::DoGetClientObject() const'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV7wxSizer[vtable
for wxSizer]+0x84): undefined reference to
`wxClientDataContainer::DoSetClientData(void*)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV7wxSizer[vtable
for wxSizer]+0x88): undefined reference to
`wxClientDataContainer::DoGetClientData() const'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV22wxStdDialogButtonSizer[vtable
for wxStdDialogButtonSizer]+0x7c): undefined reference to
`wxClientDataContainer::DoSetClientObject(wxClientData*)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV22wxStdDialogButtonSizer[vtable
for wxStdDialogButtonSizer]+0x80): undefined reference to
`wxClientDataContainer::DoGetClientObject() const'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV22wxStdDialogButtonSizer[vtable
for wxStdDialogButtonSizer]+0x84): undefined reference to
`wxClientDataContainer::DoSetClientData(void*)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_sizer.o):sizer.cpp:(.rdata$_ZTV22wxStdDialogButtonSizer[vtable
for wxStdDialogButtonSizer]+0x88): undefined reference to
`wxClientDataContainer::DoGetClientData() const'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_bmpbase.o): In function
`_ZlsR9wxVariantRK8wxBitmap':
/usr/src/wxWidgets/./src/common/bmpbase.cpp:141: undefined reference
to `wxVariant::SetData(wxVariantData*)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_bmpbase.o): In function
`_ZlsR9wxVariantRK6wxIcon':
/usr/src/wxWidgets/./src/common/bmpbase.cpp:32: undefined reference to
`wxVariant::SetData(wxVariantData*)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_bmpbase.o): In function
`__static_initialization_and_destruction_0':
/usr/src/wxWidgets/./src/common/bmpbase.cpp:31: undefined reference to
`wxVariantData::ms_classInfo'
/usr/src/wxWidgets/./src/common/bmpbase.cpp:32: undefined reference to
`wxVariantData::ms_classInfo'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_image.o): In function
`_ZlsR9wxVariantRK7wxImage':
/usr/src/wxWidgets/./src/common/image.cpp:141: undefined reference to
`wxVariant::SetData(wxVariantData*)'
/usr/local/lib/libwx_mswd_core-2.8.a(corelib_image.o): In function
`__static_initialization_and_destruction_0':
/usr/src/wxWidgets/./src/common/image.cpp:52: undefined reference to
`wxVariantData::ms_classInfo'
Info: resolving __timezone by linking to __imp___timezone (auto-import)
collect2: ld returned 1 exit status
make[2]: *** [bin/wxImagePlaneWidget.exe] Error 1
make[1]: *** [CMakeFiles/wxImagePlaneWidget.dir/all] Error 2
make: *** [all] Error 2