BUG: Setting "INSTALLDIR" for "qtargets.mk" doesn't work rig

In the recursive build system, you can override “INSTALLDIR”,
and the help documentation describes doing this.
But it doesn’t work right. The usual target prefix is prepended
no matter what you do. So you can’t really change the install
directory.

Works differently in QNX 6.21 and QNX 3, too.

John Nagle
Team Overbot