c++ - "undefined reference to 'QScriptEngine::QScriptEngine()" -


given code, get: "undefined reference 'qscriptengine::qscriptengine()"

#include <qtscript/qscriptengine>  ...  qscriptengine e;  /* commented out understand instantiation error first e.globalobject().setproperty("t", 123);  bool result = e.evaluate("(t>=2 && t<5) || (t<1)").tobool();  */

did declare script in pro ?

 qt += script

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