How to use "-set" option in qmake?

[xintrea]

Hello!
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I try run qmake with setting any variable and it value. According to the documentation, for do it is used option "-set".
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Options:
-set <prop> <value> Set persistent property
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http://apidocs.meego.com/1.1/core/html/qt4/qmake-environment-reference.html#installs
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I run command:
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qmake ./meego/mytetra.pro -r -spec linux-g++ -set TARGET_OS_IS_MEEGO 1 CONFIG +=debug
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And qmake show error:
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***Unknown option -set
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How to run qmake with "-set" option?

[Scylla]

You have to call qmake -set separate as single command and not in combination with other options.