[vtk-developers] Mac OS X Build failure

[David Gobbi]

Hi Goodwin,

For Win32 builds, there is a CMake variable called TK_XLIB_PATH that
is set to the directory where X11/Xlib.h is to be found.  As far as I
understand, that variable is only needed when you are building VTK
against a Tk source directory.  Once Tk is installed, the X11
directory is installed in the Tk include directory and X11/Xlib.h is
found automatically.

So I'm guessing that the reason the TK_XLIB_PATH variable isn't
present under OS X is that very few people (or maybe no people) have
ever tried building against a Tk source directory on OS X.

If you're interested you can grep the VTK cmake files for TK_XLIB_PATH
to see how things are done for Windows, and then make things work the
same way for OS X.

 - David


On Mon, Feb 25, 2013 at 7:17 PM, Goodwin Lawlor
<goodwin.lawlor.lists at gmail.com> wrote:
>
> Looking at the Tk Makefile, it seems that when building static libs with Aqua you have to force the inclusion of Xlib.h from the Tk source tree (ie, from the tk/xlib directory)
>
> So, adding
>
>     INCLUDE_DIRECTORIES(BEFORE ${TK_INCLUDE_PATH}/../xlib)
>
> to VTK/Rendering/CMakeLists.txt fixed things.
>
> hth someone.
>
> Goodwin
>
> On Mon, Feb 25, 2013 at 10:02 PM, Goodwin Lawlor <goodwin.lawlor.lists at gmail.com> wrote:
>>
>> Hi All,
>>
>> I'm building VTK (5.10.1 and Nightly) on Mac OS X 10.7.5
>>
>> I'm building static libs with Tcl wrappers (v8.5.13 and v8.6).
>>
>> The build fails on vtkTkRenderWidget with
>>
>> In file included from /Users/GoodwinLawlor/code/VTK/Rendering/vtkTkRenderWidget.cxx:35:
>> In file included from /Users/GoodwinLawlor/code/tcltk/tk8.6/generic/tkInt.h:19:
>> In file included from /Users/GoodwinLawlor/code/tcltk/tk8.6/generic/tkPort.h:25:
>> In file included from /Users/GoodwinLawlor/code/tcltk/tk8.6/macosx/tkMacOSXPort.h:56:
>> /Users/GoodwinLawlor/code/tcltk/tk8.6/generic/tkIntXlibDecls.h:380:16: error: conflicting types for 'XKeycodeToKeysym'
>> EXTERN KeySym           XKeycodeToKeysym(Display *d, KeyCode k, int i);
>>                         ^
>> /usr/include/X11/Xlib.h:1694:15: note: previous declaration is here
>> extern KeySym XKeycodeToKeysym(
>>
>> I've got VTK_USE_X = 0 and VTK_USE_COCOA = 1
>>
>> Basically, tkIntXlibDecls.h is declaring the same types as Xlib.h
>>
>> Grateful for any hints before going grepping...
>>
>> Thanks,
>>
>> Goodwin