On Fri, 2010-01-15 at 10:07 -0500, David Cole wrote: > On Fri, Jan 15, 2010 at 9:44 AM, Marcel Loose <lo...@astron.nl> wrote: > 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 header file is missing our out-of-date, it will be 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. > > > > This should work already: if you change my_header.h.in then cmake > should re-run to re-configure your file at 'make' time. > > > If you have additional dependencies that should trigger a > re-configure, you should probably convert it to an add_custom_command > such that it happens at build time.
It's not the myheader.h.in that's changing; myheader.h should be regenerated because the value of one of the variables in myheader.h.in (that get expanded) change. To be more precise, I try to record the svn revision number (and some more svn info). I carefully read http://www.mail-archive.com/cmake@cmake.org/msg25922.html, because it closely matches my problem, but I couldn't figure out what update_version.cmake should do exactly. In my case, I would need the values of a number CMake variables (like CMAKE_CURRENT_BINARY_DIR), but of course, these values are not around anymore when running 'make'. Should all these variables be passed using -D? Best regards, Marcel Loose. _______________________________________________ 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