[Interest] qmake PWD variable?

[tangk]

OS:windows 7 64bit, qt version:4.8.4
when I use the command in pro file. It will runs error with :

The syntax of the command is incorrect. so I delete the "$$PWD", It runs 
well.

and I test in ubuntu OS, the system command runs well.



win32:{
     LIBS += $$PWD/living1.lib
     system(copy $$PWD/living1.dll $$[QT_INSTALL_BINS])
}

unix:contains(QMAKE_HOST.arch, x86_64):{
     LIBS += $$PWD/linux_x64/libclave2.so
     system(cp $$PWD/linux_x64/libclave2.so $$[QT_INSTALL_LIBS])
}

unix:contains(QMAKE_HOST.arch, x86):{
     LIBS += $$PWD/linux_x86/libclave2.so
     system(cp $$PWD/linux_x86/libclave2.so $$[QT_INSTALL_LIBS])
}

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