The target is not respected when building in XCode.
This works in Qt 4.2, but not in Qt 4.3.
It works in Qt 4.3 when building using a regular Makefile and gcc, but not using the Xcode project file with xcodebuild.

Reproducible with the following steps:

• create a simple project, have the following in the pro file:
  TEMPLATE = app
  target.path = /tmp
  INSTALLS += target
  DEPENDPATH += .
  INCLUDEPATH += .

1. Input
   SOURCES += main.cpp

• run: qmake -spec macx-xcode
• run: xcodebuild *.xcodeproj
• run: xcodebuild install

With Qt 4.2, this will copy the built file to "/tmp", but in Qt 4.3 nothing is copied.