Whoops, forgot to reply on list, sorry!

> From: cmake-boun...@cmake.org
> [mailto:cmake-boun...@cmake.org] On Behalf Of Andreas Pakulat
> Sent: 15 September 2010 13:03
> To: cmake@cmake.org
> Subject: Re: [CMake] add_dependency on a custom target
> 
> On 15.09.10 12:34:43, Nick Davidson wrote:
> > Dear List,
> > 
> > I'm using a file glob to extract a list of xml files to pass to a 
> > custom target to generate a pot file with getttext, most of
> the heavy
> > lifting is handled by a Macro.
> > 
> > include(FindMsgfmt)
> > macro (MakePot BIN_NAME CPP_SOURCES XML_SOURCES)
> >      set(CPP_SRCS ${CPP_SOURCES})
> >      set(XML_SRCS ${XML_SOURCES})
> >      set(POT_FILE ${BIN_NAME}.pot)
> >      if (XGETTEXT_FOUND)
> >          message(STATUS "Adding Target Potfile: ${POT_FILE}")
> >          if (XML_SRCS)
> >              add_custom_target(${POT_FILE} ALL
> >              COMMAND ${XGETTEXT_EXECUTABLE} --language=C++
> --force-po
> > -kN_ -kNN_:1,2 -o  ${POT_FILE} ${CPP_SRCS}
> >              COMMAND ${XGETTEXT_EXECUTABLE} --language=Glade 
> > --force-po -j -o  ${POT_FILE} ${XML_SRCS} )
> >          else (XML_SRCS)             
> add_custom_target(${POT_FILE} ALL
> >              COMMAND ${XGETTEXT_EXECUTABLE} --language=C++
> --force-po
> > -kN_ -kNN_:1,2 -o  ${POT_FILE} ${CPP_SRCS})
> >          endif(XML_SRCS)
> >          add_dependencies(${POT_FILE} ${XML_SOURCES} ${CPP_SRCS})
> >      else (XGETTEXT_FOUND)
> >          message(STATUS "Cannot find xgettext")
> >      endif(XGETTEXT_FOUND)
> > endmacro (MakePot POT_NAME)
> > 
> > The only problem is, if the list of xml files changes (e.g. a
> > deletion) the cmake cache doesn't get regenerated and thus the xml 
> > files are not reglobbed and so the custom command fails.
> > 
> > Any suggestions?
> 
> Don't use a glob (list the files individually) or remember to touch 
> the cmakelists.txt file after adding new files. I don't think there's 
> a way to have cmake re-run when calling just make within 
> cmakelists.txt.

Ok, but why doesn't adding the files as dependencies work? 
The glob is stored in the cache - fine, there isn't a way for Cmake to
automatically figure out what files it should check to see if anything
has changed. Having added those files as dependencies of the target that
uses the glob manually then surely it's just a list of files?


Is there a fundamental difference between a list variable made from
a globbed set of files and a list made from a manually specified set?

> 
> Andreas
> 
> --

Nickd

______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please visit http://www.messagelabs.com/email 
______________________________________________________________________
_______________________________________________
Powered by www.kitware.com

Visit other Kitware open-source projects at 
http://www.kitware.com/opensource/opensource.html

Please keep messages on-topic and check the CMake FAQ at: 
http://www.cmake.org/Wiki/CMake_FAQ

Follow this link to subscribe/unsubscribe:
http://www.cmake.org/mailman/listinfo/cmake

Reply via email to