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CMake: Disable CMAKE_INSTALL_RPATH_USE_LINK_PATH

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There should be no need for CMake to add rpaths pointing to
directories outside of the build tree to the installed libraries.
All relevant install rpaths are handled by qt_apply_rpaths().

Change-Id: If554b1e3c790c2bb04a34e8b0524aab3febf5afc
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
This commit is contained in:
Alexandru Croitor 2022-04-13 18:41:54 +02:00
parent 8254ee6a3b
commit a1d8b9023f
1 changed files with 9 additions and 11 deletions
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20
cmake/QtBuild.cmake
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@ -238,18 +238,16 @@ endif("${isSystemDir}" STREQUAL "-1")
# Bottom line: No need to pass anything to CMAKE_INSTALL_RPATH.
set(CMAKE_INSTALL_RPATH "" CACHE STRING "RPATH for installed binaries")
# add the automatically determined parts of the RPATH
# which point to directories outside the build tree to the install RPATH
# By default, don't embed auto-determined RPATHs pointing to directories
# outside of the build tree, into the installed binaries.
# This ended up adding rpaths like ${CMAKE_INSTALL_PREFIX}/lib (or /Users/qt/work/install/lib into
# the official libraries created by the CI) into the non-qtbase libraries, plugins, etc.
#
# TODO: Do we really want to use this option for official packages? Perhaps make it configurable
# or remove it? This causes final installed binaries to contain an absolute path RPATH pointing
# to ${CMAKE_INSTALL_PREFIX}/lib, which on the CI would be something like
# /Users/qt/work/install/lib.
# It doesn't seem necessary to me, given that qt_apply_rpaths already applies $ORIGIN-style
# relocatable paths, but maybe i'm missing something, because the original commit that added the
# option mentions it's needed in some cross-compilation scenario for program binaries that
# link against QtCore.
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
# It should not be necessary, given that qt_apply_rpaths() already adds the necessary rpaths, either
# relocatable ones or absolute ones, depending on what the platform supports.
if(NOT QT_NO_DISABLE_CMAKE_INSTALL_RPATH_USE_LINK_PATH)
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH FALSE)
endif()
# Ensure that GNUInstallDirs's CMAKE_INSTALL_LIBDIR points to the same lib dir that Qt was
# configured with. Currently this is important for QML plugins, which embed an rpath based