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Document `CONFIGURATION_NAME` and related build variables

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Martchus 2020-01-20 17:46:17 +01:00
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doc/buildvariables.md
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@ -105,6 +105,20 @@ None of these are enabled or set by default, unless stated otherwise.
* Using `CMAKE_EXE_LINKER_FLAGS` or `CMAKE_SHARED_LINKER_FLAGS` is often not helpful
because the additional flags need to be added at the end of the linker line most
of the time.
* `CONFIGURATION_NAME`: specifies a name to be incorporated into install paths
* Builds with different configuration names can be installed alongside within the
same install prefix.
* Use cases
* Installing static and shared libraries within the same prefix.
* Installing different versions of the library within the same prefix.
* Installing the version linked against Qt 5 and the version linked against
Qt 6 within the same prefix (when Qt 6 is released).
* Does not affect library names, because their file names might differ anyways
between different configurations (e.g. static vs. shared libraries).
* Set `CONFIGURATION_TARGET_SUFFIX` in accordance so library names are affected
as well.
* Set `CONFIGURATION_PACKAGE_SUFFIX` to *use* libraries built with
`CONFIGURATION_NAME`.
#### Variables for specifying location of 3rd party dependencies
The build script tries to find the required dependencies at standard loctions