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Opened by Florian Steinhardt@fcs

CPackIFW: Documentation: how to set a component dependency with a specific version (or change code to accept the short identifier variant too)

I needed a couple of hours today to realize how to set a component dependency to another component with a specific version using CPackIFW.

The manual (https://cmake.org/cmake/help/latest/module/CPackIFW.html) only says:

DEPENDS | DEPENDENCIES

    list of dependency component or component group identifiers in QtIFW style.

A QtIFW style dependency component could be for example

<Dependencies>main-1.0.0</Dependencies> or <Dependencies>main-=1.0.0</Dependencies>

(both versions are valid for QtIFW: https://doc.qt.io/qtinstallerframework/ifw-component-description.html#component-dependencies)

CPackIFW seems to need the long version, using the short version

cpack_ifw_configure_component(
    component_name
    DEFAULT FALSE
    DEPENDS main-1.0.0   
)

resulted in the version number just being dropped and the cpack generated dependency in the component package.xml for binarycreator looks like this:

<Dependencies>main</Dependencies>

Only main-=1.0.0 was working as expected.

Having an example in the documentation or accepting the short version (main-1.0.0) would have made things a lot more transparent for me.

I was using cpack 3.19.2 running on Ubuntu Linux x86 64 bit.

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