tracking dependencies of built sources

[dherring]

Hi all,

I'm using Qt 4's moc to generate source files in an autotools project.

The pattern looks something like

cat <<_EOF > Makefile.am
# Makefile fragment
bin_PROGRAMS=test
test_SOURCES=a.cpp b.cpp
test_META=a.hpp b.hpp
test_SOURCES+=$(test_META)
test_LDADD = $(test_META:%.hpp=%_moc.$(OBJEXT))

%_moc.cpp : %.hpp
        $(QT_MOC) -o $@ $<
_EOF


This all works fine for building the project, but it doesn't track 
dependencies for the moc source files properly.  The dependencies are 
getting dropped in $(DEPDIR)/*_moc.Po, but the Makefile doesn't have any 
lines which actually include them.

Here's an extract from the fictitious Makefile generated by the above 
input.

<<
distclean-compile:
        -rm -f *.tab.c

include ./$(DEPDIR)/a.Po
include ./$(DEPDIR)/b.Po

.cpp.o:
> >

What automake incantation do I need to get this to also say
<<
include ./$(DEPDIR)/a_moc.Po
include ./$(DEPDIR)/b_moc.Po
> >
?

These files are being generated, but the makefile never uses them, leading 
to subtle recompilation errors...


Thanks,
Daniel