build/qt.jam

#  Copyright (C) Vladimir Prus 2002. Permission to copy, use, modify, sell and
#  distribute this software is granted provided this copyright notice appears in
#  all copies. This software is provided "as is" without express or implied
#  warranty, and with no claim as to its suitability for any purpose.

import modules ;
import feature ;
import errors ;
import type ;

# Initialized the QT support module. The 'prefix' parameter 
# tells where QT is installed. When not given, environmental
# variable QTDIR should be set.
rule init ( prefix ? )
{
    if ! $(prefix)
    {
        prefix = [ modules.peek : QTDIR ] ;
        if ! $(prefix) 
        {
            errors.error 
              "QT installation prefix not given and QTDIR variable is empty" ;
        }        
    }
            
    .prefix = $(prefix) ;
    
    # Work around Boost.Jam bug,
    # http://zigzag.cs.msu.su:7814/scarab/issues/id/BB1
    modules.poke : QTDIR : $(prefix) ;
    
    feature.extend uses : qt ;
    feature.action <uses>qt : qt.add-properties ;            
    
    # The target type for sources that should be processed with the
    # moc tool.
    type.register QPP : qpp ;
       
    generators.register-standard qt.moc : QPP : CPP(moc_%) ;    
}

rule qt.add-properties ( property )
{
    return <include>$(.prefix)/include <linkflags>-lqt ;
}

# -f forces moc to include the processed source file.
# Without it, it would think that .qpp is not a header and would not
# include it from the generated file.
actions moc 
{
    $(QTDIR)/bin/moc -f $(>) -o $(<)
}