[CMake] cmake PyQT/SIP

[luxInteg]

On Sunday 05 December 2010 13:51:12 Michael Wild wrote:
> On 12/05/2010 02:04 AM, luxInteg wrote:
> > On Thursday 02 December 2010 07:48:55 Michael Wild wrote:
> >>>> Use ADD_CUSTOM_COMMAND.
> >>> 
> >>> @Michael: that advice is not correct.  add_custom_command sets up a
> >>> command to be run at "make" time. Instead, the execute_process command
> >>> should be used to run a command at "CMake" time which is what the OP
> >>> needs to generate his *.cpp files.
> >>> 
> >>> @LuxInteg:  See the CMakeLists.txt file at
> >>> http://plplot.svn.sourceforge.net/viewvc/plplot/trunk/bindings/qt_gui/p
> >>> yq t4/
> >>> 
> >>> for an example of generating source code with sip.
> >>> 
> >>> Alan
> >> 
> >> Huh, why can't he run sip at build time? If you do:
> >> 
> >> find_program(SIP_EXECUTABLE sip)
> >> 
> >> add_custom_command(OUTPUT
> >> 
> >>     ${CMAKE_CURRENT_BINARY_DIR}/fileC.cpp
> >>     ${CMAKE_CURRENT_BINARY_DIR}/fileD.cpp
> >>   
> >>   COMMAND ${SIP_EXECUTABLE} -c ${CMAKE_CURRENT_BINARY_DIR}
> >>   
> >>     ${CMAKE_CURRENT_SOURCE_DIR}/fileA.sip
> >>   
> >>   DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/fileA.sip
> >>   COMMENT "Processing ${CMAKE_CURRENT_SOURCE_DIR}/fileA.sip"
> >>   VERBATIM)
> >> 
> >> add_library(myPythonExtension SHARED
> >> 
> >>   ${CMAKE_CURRENT_BINARY_DIR}/fileC.cpp
> >>   ${CMAKE_CURRENT_BINARY_DIR}/fileD.cpp)
> >> 
> >> # possibly link with required libraries here...
> > 
> > Thanks for your hep so far
> > 
> > I have been experimenting on the  above with the following results:-
> > 
> > When the  dependency has other dependencies  the  above appears to fail; 
> > i.e when  filA.sip calls some file  say  PyQt4/QTCore/somefile.sip. 
> > (And I do not know of anyway of fitting this inside the
> > add_custom_command() function.)
> > 
> > I tried  beforehand
> > 
> >                     this:-
> > 
> > set(PYQt4_SIP_FILES   /usr/share/sip/PyQt4)
> > 
> >                     then
> > 
> > COMMAND ${SIP_EXECUTABLE} -c ${CMAKE_CURRENT_BINARY_DIR}
> > 
> >     ${CMAKE_CURRENT_SOURCE_DIR}/fileA.sip
> >   
> >   DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/fileA.sip
> >   ${PYQt4_SIP_FILES}/PyQt4/QTCore/somefile.sip
> >   MAIN_DEPENDENCY ${CMAKE_CURRENT_SOURCE_DIR}/fileA.sip
> > 
> > I even tried (the penultimate line)   with ${PYQt4_SIP_FILES}/PyQt4/
> > 
> > but each time it comes  back with
> > 
> > "sip: Unable to find file "QtCore/somefile.sip" "
> > 
> > I am using  a FindSIP.cmake that kde4 uses.
> > 
> > Advice would be appreciated
> > 
> > luxInteg
> 
> The DEPENDS option tells CMake about the dependency on somefile.sip, but
> not sip. You also need to pass "-I ${PYQT4_SIP_FILES}" to the sip
> processor.
> 
> One word of advice: you seem to spurn documentation, but you really
> should read it. 
advice taken and have been reading

The appropriate sip command  (appendage) for the above  appears to be:-
-I${SIP_PATH} 
-s ".cpp"
-t WS_X11 -t Qt$version -w   *version is your qtversion).




HOWEVER I am encountering severe linking problems.