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Qt Project Files and PREFIX Variable

i am on

PREFIX = /usr/local

inside my project file and then I run

 qmake myproject.pro

The Makefile says nothing about PREFIX, although I assume that I am doing something wrong. Any ideas?

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3 answers

PREFIX means nothing in qmake files. The target for files is accomplished using the target parameter. Therefore, if you want PREFIX to determine the base location, for example /usr/local , you can do something like this:

 isEmpty(PREFIX) { PREFIX = /usr/local } TARGET = myapp TARGET.path = $$PREFIX/

isEmpty(PREFIX) will allow you to change it during a command line call to qmake, for example.

 qmake PREFIX=/opt
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If you want to pass PREFIX to qmake, you can do the following:

  • Open projects from the left panel or using the Ctrl+5 key
  • Expand Build Steps
  • Add PREFIX=/your/path/ to the Additional Arguments field
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That is, the INSTALL_ROOT variable during installation, try
make install INSTALL_ROOT="your path"

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Source: https://habr.com/ru/post/895318/

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