I have a modified version of the Swig module (edited before the
EXTRA_DEPS flag was present). It uses the -MM to create dependencies
and a python script to convert the file into a CMake consumable
version. The make2cmake.py file could be rewritten in cmake script (see
below). It just needs some regular expression magic. We've done it for
other compilers (cuda), but I haven't bothered since I had one that just
worked.
You can find the code in our online repository.
svn cat
https://code.sci.utah.edu/svn/Manta/trunk/CMake/MantaUseSWIG.cmake >
MantaUseSWIG.cmake
svn cat https://code.sci.utah.edu/svn/Manta/trunk/CMake/make2cmake.py >
make2cmake.py
svn cat https://code.sci.utah.edu/svn/Manta/trunk/CMake/empty.depend.in
> empty.depend.in
You don't have to do anything special on the using side. It can be used
as a drop in replacement for the existing swig module. You just have to
place these three files in a CMake directory at the top of your source tree.
The mechanics were takes from some code I found in VTK. You create two
additional targets. One generates the .swig-depends file via swig -MM.
The next converts the file to a cmake readable form. Swig doesn't
regenerate the .swig-depends file if the dependencies don't change, so
you get reasonable behavior. We've been using this script for a couple
of years now with out problems.
James
P.S. Here's my first stab at a make2cmake.cmake script (note it probably
isn't complete).
SET(IN_FILENAME "test.swig-depend")
MESSAGE("IN_FILENAME = ${IN_FILENAME}")
FILE(READ ${IN_FILENAME} FILESTUFF)
MESSAGE("FILESTUFF = ${FILESTUFF}")
STRING(REGEX REPLACE "^.*:[ \\\\]*\n" "" FILESTUFF ${FILESTUFF})
STRING(REGEX REPLACE "[ \\\\]*\n" ";" FILESTUFF ${FILESTUFF})
MESSAGE("FIXED = ${FILESTUFF}")
FOREACH(VAR ${FILESTUFF})
MESSAGE("VAR = ${VAR}")
ENDFOREACH(VAR)
We did get this working for cuda, but the regular expression may need to
be modified to the one above.
svn cat
https://code.sci.utah.edu/svn/people/abe/code/CMake-cuda/CMake/cuda/make2cmake.cmake
> make2cmake.cmake
On Dec 10, 2007, at 9:08 AM, Tristan Carel wrote:
On Dec 10, 2007 7:15 AM, Alan W. Irwin <[EMAIL PROTECTED]> wrote:
On 2007-12-10 05:33+0100 Christiaan Putter wrote:
Hi all,
I know swig support isn't all that great at the moment but was
wondering if
someone happens to have a working Swig module for cmake that doesn't
rebuild
every time even without the dependencies having changed.
I do confirm that is a problem, and I hope somebody fixes it.
I use the Swig module, the one provided by CMake, and it's working
well. Swig wrappers generation and library compilation are properly
managed (not rebuild all the time). I use it the same way than Alan
described: only one swig file, which takes care of all inclusions, is
provided to the macro SWIG_ADD_MODULE. To specify missing
dependencies, I use the variable `SWIG_MODULE_<module>_EXTRA_DEPS':
SET(SWIG_MODULE_foo_EXTRA_DEPS bar.i foobar.i bar.h ...)
SWIG_ADD_MODULE(foo PYTHON foo.i)
Attached to #4147, you can find a macro
`SWIG_GET_WRAPPER_DEPENDENCIES' which use -MM option provided by Swig
to compute dependencies. This intend to replace use of variable
SWIG_MODULE_<module>_EXTRA_DEPS
Could you please describe a use case which create the unnecessary
rebuilt of your project?
Someone else also pointed out a problem with .i files having to be
in the
current source dir.
We have never felt constrained by that limitation (in fact I was
unaware of
it) since it is possible to specify just one *.i file in the current
source
directory that then includes *.i files from elsewhere in the source tree.
+1
Despite the convenience of this approach, others will have different
needs
that would best be served by allowing the initial *.i file (that includes
the rest of the *.i files) to be somewhere else than the current source
directory so on these general grounds I hope this limitation is removed
at the same time as when the dependency problem is fixed.
I agree, it should work.
I guess it is alright if you specify a path like "../common.i" but not
something like ${CMAKE_SOURCE_DIR}/swig/common.i.
--
Tristan Carel
Music with dinner is an insult both to the cook and the violinist.
http://www.tristancarel.com
_______________________________________________
CMake mailing list
CMake@cmake.org
http://www.cmake.org/mailman/listinfo/cmake
_______________________________________________
CMake mailing list
CMake@cmake.org
http://www.cmake.org/mailman/listinfo/cmake
