waf : passing compiler flags to qt's moc

Question

I my trying to run a project using waf which uses boost library . To overcome a problem I need to pass and -DBOOST_TT_HAS_OPERATOR_HPP_INCLUDED argument to MOC. I tried doing so in the wscript as

   bld(features ='cxx',
       source   ='GSTEngine.cpp',
       target   = 'GSTEngine.o',
       includes = qtinc+gstinc+taginc,use=['BOOST'],
       uselib   = qtlibs,
       cxxflags = ['-DQT_NO_KEYWORDS','-DBOOST_TT_HAS_OPERATOR_HPP_INCLUDED'])

but it failed. How to pass argument to MOC using waf?

Are you sure these need to be passed to moc? They look like generic defines and should be defined via "bld(..., defines=['QT_NO_KEYWORDS', 'BOOST_TT_HAS_OPERATOR_HPP_INCLUDED'], ...)" as can be seen at http://docs.waf.googlecode.com/git/book_16/single.html section 9.1.2 — drahnr, Jul 10 '12 at 17:20

score 0 · Answer 1 · answered Feb 07 '13 at 16:02

The possible issue here is that waf invokes a new task for moc that may not carry the same cxxflags as the task generator that you have defined above.

A possible fix would be to add the defines to the waf environment like so:

conf.env.append_unique('DEFINES',
    ['QT_NO_KEYWORDS','BOOST_TT_HAS_OPERATOR_HPP_INCLUDED'])

If you would just like to add the defines to the moc task you could implement a custom feature and add it to your task generator that digs out the moc task and adds the defines.

waf : passing compiler flags to qt's moc

1 Answers1