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https://issues.apache.org/jira/browse/PROTON-2254?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rick van Rein updated PROTON-2254:
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Labels: cmake install proton (was: proton,cmake,destdir)
> Relative paths in CMake share
> -----------------------------
>
> Key: PROTON-2254
> URL: https://issues.apache.org/jira/browse/PROTON-2254
> Project: Qpid Proton
> Issue Type: Improvement
> Components: proton-c
> Affects Versions: proton-c-0.31.0
> Environment: Debian Linux; build Proton then Dispatch into each their
> own `DESTDIR`. This is done by our "layered build" system,
> https://gitlab.com/arpa2/mkhere/-/blob/master/qpid_proton.sh and
> https://gitlab.com/arpa2/mkhere/-/blob/master/qpid_dispatch.sh
> Reporter: Rick van Rein
> Priority: Minor
> Labels: cmake, install, proton
> Original Estimate: 0.25h
> Remaining Estimate: 0.25h
>
> This sequency installs well:
> {{cmake}}
> {{ make}}
> {{ make DESTDIR=/some/where install}}
> However, further use of the installation fails, because of strict
> dependencies on the *installed* paths in files like `ProtonConfig.cmake`:
> {{ set_target_properties(Proton::core}}
> {{ PROPERTIES}}
> {{ IMPORTED_LOCATION "/usr/local/lib/libqpid-proton-core.so"}}
> {{ IMPORTED_LOCATION_DEBUG "/usr/local/lib/libqpid-proton-core.so"}}
> {{ INTERFACE_INCLUDE_DIRECTORIES "${Proton_Core_INCLUDE_DIRS}")}}
> **What would work:** First switch to the `DESTDIR`, then continue building
> something like Qpid Dispatch Router.
> **Solution:** Use relative directories, like in:
> {{# Compute the installation prefix relative to this file.}}
> {{ get_filename_component(_IMPORT_PREFIX "${CMAKE_CURRENT_LIST_FILE}" PATH)}}
> {{ get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)}}
> {{ get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)}}
> {{ get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)}}
> {{ if(_IMPORT_PREFIX STREQUAL "/")}}
> {{ set(_IMPORT_PREFIX "")}}
> {{ endif()}}
> **Work-around:** An unhappy quickfix is
> {{ find /some/where -name *.cmake -exec \}}
> {{ sed -i "s+/usr/+/some/where/usr/+g" {} \;}}
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