Ran into this issue on the pull-tester machine cross-compiling for win32, where /usr/bin/moc-qt4 was for QT 4.6, which was used in preference to the moc in the --with-qt-bindir directory.
Workaround was to create a moc-qt4 link in the --with-qt-bindir directory.
I suppose the priority rule should be to prefer any moc in the qt-bindir directory above any moc elsewhere. Looking at the configure script it does the following
for ac_prog in moc-qt4 moc4 moc
<search for program named ac_prog> in qt_binpath, then rest of path
-> if found, select it and exit loop
This is generated from the following configure.ac line:
AC_PATH_PROGS([MOC], [moc-qt4 moc4 moc],, $qt_bin_path:$PATH)
That's kind of where my automake knowledge stops though...
This was my main argument against https://github.com/bitcoin/bitcoin/commit/9a09c0091c33a8f22f48b5e6e5b8f3b400c43ff3 . This is working "as intended" unfortunately.
Should be fixed with the qt5 support. I'll try to get a PR pushed up this week.
