D29274: ECMGeneratePriFile: make the pri files relocatable

[David Faure]

dfaure created this revision.
dfaure added reviewers: vatra, kfunk, apol.
Herald added projects: Frameworks, Build System.
Herald added subscribers: kde-buildsystem, kde-frameworks-devel.
dfaure requested review of this revision.

REVISION SUMMARY
  Instead of generating
  QT.KArchive.includes = /full/path/include/KF5/KArchive
  make it
  QT.KArchive.includes = $$PWD/../../include/KF5/KArchive
  
  This makes the whole install prefix relocatable after the fact,
  the includes will be found based on where the .pri file ended up.
  
  This is especially useful for Conan support, says Bogdan.

TEST PLAN
  After make install in ECM, cd karchive/examples/helloworld && qmake && make

REPOSITORY
  R240 Extra CMake Modules

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D29274

AFFECTED FILES
  modules/ECMGeneratePriFile.cmake

To: dfaure, vatra, kfunk, apol
Cc: kde-frameworks-devel, kde-buildsystem, LeGast00n, cblack, bencreasy, michaelh, ngraham, bruns
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