Error on copy qmake.exe when building Qt

I'm trying to build the Qt qt-everywhere-opensource-src-4.7.3 following the instructions from http://doc.qt.nokia.com/4.7/install-win.html. I've set the visual studio 2008 variables using vcvars32.bat.

But I'm getting errors like this when running configure command:

Generating Code... link -OUT:qmake.exe project.obj main.obj makefile.obj unixmake.obj unixmake2.obj mingw_make.obj option.obj winmakefile.obj projectgenerator. obj property.obj meta.obj makefiledeps.obj metamakefile.obj xmloutput.obj pbuilder_pbx.obj borland_bmake.obj msvc_nmake.obj msvc_vcproj.obj msvc_vcx proj.obj msvc_objectmodel.obj msbuild_objectmodel.obj symmake.obj initprojectdeploy_symbian.obj symmake_abld.obj symmake_sbsv2.obj symbiancommon.obj registry.obj epocroot.obj qbitarray.obj qbuffer.obj qcryptographichash.obj qfsfileengine.obj qfsfileengine_iterator.obj qbytearray.obj qvsnprin tf.obj qbytearraymatcher.obj qdatetime.obj qdir.obj qdiriterator.obj qfile.obj qtemporaryfile.obj qabstractfileengine.obj qfsfileengine_win.ob j 开发者_开发问答qsystemlibrary.obj qfsfileengine_iterator_win.obj qfileinfo.obj qglobal.obj qhash.obj qiodevice.obj qlist.obj qlinkedlist.obj qlocale.obj qmalloc.obj qmap.obj qregexp.obj qtextcodec.obj qutfcodec.obj qstring.obj qstringlist.obj qtextstream.obj qdatastream.obj quuid.obj qvector. obj qsettings.obj qlibraryinfo.obj qvariant.obj qurl.obj qsettings_win.obj qmetatype.obj qxmlstream.obj qxmlutils.obj qnumeric.obj ole32.lib advapi32.lib qmake_pch.obj Microsoft (R) Incremental Linker Version 9.00.30729.01 Copyright (C) Microsoft Corporation. All rights reserved.

copy qmake.exe G:\c++\qt\qt4.7\qt-src-4.7.3\qt-everywhere-opensource-src-4.7.3\bin\qmake.exe The syntax of the command is incorrect.

Creating makefiles in src... Generating Visual Studio project files...

execute: File or path is not found (G:\c++\qt\qt4.7\qt-src-4.7.3\qt-everywhere-opensource-src-4.7.3\bin\qmake)

Qmake failed, return code -1

Generating Makefiles... execute: File or path is not found (G:\c++\qt\qt4.7\qt-src-4.7.3\qt-everywhere-opensource-src-4.7.3\bin\qmake)

Qmake failed, return code -1

Seems like it fails on the copy command. What's the problem?

It seems that copy has trouble with pluses in the path. You should file a bug report at https://bugreports.qt.io, so that they properly escape paths in their build system.