[Qt-interest] override variables with environment variables

[Lorenzo Bettini]

Hi

is there a way to override variables (such as, e.g., INSTALL_DIR) in 
.pro files by using environment variables, e.g., something like this:

INSTALL_DIR="/my/path" qmake

?

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Lorenzo Bettini, PhD in Computer Science, DI, Univ. Torino
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