[fpc-pascal] How to set LCL widgetset for my project?

[章宏九]

On the page (http://wiki.lazarus.freepascal.org/Qt_Interface), I read
"To compile a project for Qt just select it as the target widgetset on
the Compiler Options dialog." However, I am using vim instead of
Lazarus IDE. How should I set the compiler options in the command
line? I would also like to know more about in which file is the option
given in the LCL sources.

Thank you for your response.

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Zhang, Hongjiu