On Wed, Oct 7, 2015 at 9:11 AM, Antonio Cervone <ant.cerv...@gmail.com>
wrote:
> vtk relies heavily on cmake, so it does not support pkg-config or
> autotools explicitly.
> what it provides is a VTKConfig.cmake generated during the
> configuration/installation.
> inquiring it with this CMakeLists.txt
>
> find_package(VTK)
>
> message("VTK_DEFINITIONS = ${VTK_DEFINITIONS}")
> message("VTK_LIBRARIES = ${VTK_LIBRARIES}")
> message("VTK_INCLUDE_DIRS = ${VTK_INCLUDE_DIRS}")
> message("VTK_LIBRARY_DIRS = ${VTK_LIBRARY_DIRS}")
>
> gives all the relevant information (there is also a UseVTK.cmake that
> automates this).
> I do not see a way to parse the cmake files to get those flags in a easy
> way without depending on cmake.
>
Thanks for the info, and yeah, we can't rely on calling cmake from our
configure scripts...
> the easy way I see is to make vtk.m4 test with and without extension for
> the set of libraries, and rely on the user to properly set
> --with-vtk-include and --with-vtk-lib during configuration.
> my experience with autotools is very limited, but I will try to prepare a
> patch.
>
Right, I think the way I would do it would be to repeat the current
AC_LINK_IFELSE call multiple times, trying different sets of library names
each time, until it succeeded...
Alternatively, you could test for the existence of specific files first with
if (test -r ${VTK_LIB}/libvtkIOCore-${vtkmajorminor}.dylib) ; then
(and similarly for .so and maybe .a?) and use that for the input to the
AC_LINK_IFELSE.
I can probably take a look at it this evening, so don't worry about messing
with it unless you really want to.
--
John
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