Hi Jack,
The difference with your and my case is that you have an input file
(the .xsd file) and output files (the .h and .cpp files). In my case I
generate the output file, e.g. myheader.h, from myheader.h.in, using
configure_file(). The problem is that I cannot get this to work during
'make', only during 'cmake'.
Best regards,
Marcel Loose.
On Fri, 2010-01-15 at 15:04 +0100, Smith Jack (Ext. - UGIS - UniCredit
Group) wrote:
> I do a similar thing with an XSD file from which I generate c++
wrapper classes for accessing the corresponding XML
>
> Note the DEPENDS line !
>
> MACRO(XSD FILE NAMESPACE)
> ADD_CUSTOM_COMMAND(
> OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/xml/${FILE}.cpp
> OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/xml/${FILE}.h
> DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/xml/${FILE}.xsd
> COMMAND ${XAPI_CODESYNTH}/bin/xsd
> ARGS cxx-tree --generate-serialization --hxx-suffix .h
--cxx-suffix .cpp --fwd-suffix -fwd.hxx --type-naming java
--function-naming java --namespace-map =${NAMESPACE}
--generate-polymorphic --output-dir ${CMAKE_CURRENT_SOURCE_DIR}/xml
${CMAKE_CURRENT_SOURCE_DIR}/xml/${FILE}.xsd
> COMMENT "generating Codesynthesis Wrappers")
> ENDMACRO(XSD)
>
>
>
> > -----Original Message-----
> > From: cmake-boun...@cmake.org
> > [mailto:cmake-boun...@cmake.org] On Behalf Of Marcel Loose
> > Sent: Friday, January 15, 2010 2:55 PM
> > To: cmake@cmake.org
> > Subject: [CMake] How to regenerate source file during make?
> >
> > Hi all,
> >
> > I've been struggling with this for hours now and I can't seem
> > to get a grip on it.
> >
> > I have a header file that must be (re)generated during 'make'
> > when some external data have changed. I can successfully
> > generate this file during 'cmake' using configure_file(), but
> > I haven't been able to figure out how I can trigger the
> > configure_file() during make.
> >
> > Should I define a target for this header file? Or can I
> > specify some kind of file dependency, such that when the
> > header file is missing our out-of-date, it will be (re)generated?
> >
> > I guess it must be some clever combination of
> > add_custom_command() and add_custom_target().
> >
> > Best regards,
> > Marcel Loose.
> >
> >
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