rc-4-3-91: configure problem with qt4 / qcollectiongenerator

[Julien Bect]

Hi,

I have seen the following make failure on Debian stretch :

GEN      doc/interpreter/octave_interpreter.qch
qcollectiongenerator: could not exec 
'/usr/lib/x86_64-linux-gnu/qt4/bin/qcollectiongenerator': No such file 
or directory


Similar problems were discussed in a recent thread :

http://octave.1599824.n4.nabble.com/doc-interpreter-octave-interpreter-qch-fails-on-ubnutu-16-04-in-stable-branch-td4687111.html

but Mike said that it was solved.


I fixed the problem by installing qt4-dev-tools, but I think that it 
reveals a bug in configure:

configure:71344: checking for qcollectiongenerator-qt4
configure:71374: result: no
configure:71445: checking for qcollectiongenerator
configure:71461: found /usr/bin/qcollectiongenerator
configure:71472: result: qcollectiongenerator


@++
Julien


PS : with qt4-dev-tools installed I get

Summary:

  PASS                            14976
  FAIL                                0
  XFAIL (reported bug)               34
  SKIP (missing feature)             46
  SKIP (run-time condition)          12