Shadow builds on Windows with -prefix incorrectly build Qt libs to <prefix>\bin during build

Configure Qt for a shadow build and with -prefix and -bindir options passed to configure, the EXEs are built in the shadow directory but the DLLs are built to the <prefix>\bin. The DLLs are also built to <shadowdir>\lib so I assume that they are then copied during build to <prefix>\bin.

For example:

Qt Source is in \builds\qt\4.8.1\source
<shadowdir> is \builds\qt\4.8.1\shadow-vc10-x64
<prefix> is C:\Qt\4.8.1
<bindir> is C:\Qt\4.8.1\bin64

> cd \builds\qt\4.8.1
> mkdir shadow-vc10-x64
> cd shadow-vc10-x64
> ..\source\configure -prefix C:\Qt\4.8.1 -bindir C:\Qt\4.8.1\bin64 -libdir C:\Qt\4.8.1\lib64 -nomake examples -nomake demos -no-qt3support (and other options)
> nmake

The Qt*.dll files are output to <prefix>\bin during the build process, while executables such as qmake.exe, designer.exe, etc., are correctly built to <shadowdir>\bin.

Two exceptions are QtDesigner4.dll and QtDesignerComponents4.dll, which are correctly built to <shadowdir>\bin.

> nmake install

Most files are then copied to C:\Qt\4.8.1\bin64, as specified by -bindir.

Additional issues with this type of build:

• In order to build this way, that is by specifying alternate <prefix>, you must manually copy the "mkspecs" directory to <prefix>.
• "dumpcpp.exe" is not copied to <bindir> by "nmake install".
• The DLLs which were placed in <prefix>\bin can be manually moved to <shadowdir>\bin and the "nmake install" process will still complete successfully.

Ideally, nothing should exist in <prefix> until "nmake install" is run, and all files generated by the build should be within the <shadowdir> hierarchy.

In this example I use 64-bit build but the same behaviour is observed whether building for 32-bit, debug-only, release-only or debug-and-release.

A full list of files in <prefix>\bin after building but before installing:

• phonon4.dll
• QtCore4.dll
• QtDeclarative4.dll
• QtGui4.dll
• QtMultimedia4.dll
• QtNetwork4.dll
• QtOpenGL4.dll
• QtScript4.dll
• QtScriptTools4.dll
• QtSql4.dll
• QtSvg4.dll
• QtTest4.dll
• QtWebkit4.dll
• QtXml4.dll
• QtXmlPatterns4.dll