diff options
| -rw-r--r-- | cmake/QtBuildInternalsExtra.cmake.in | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/cmake/QtBuildInternalsExtra.cmake.in b/cmake/QtBuildInternalsExtra.cmake.in index fd91019ed7..5d5195e022 100644 --- a/cmake/QtBuildInternalsExtra.cmake.in +++ b/cmake/QtBuildInternalsExtra.cmake.in @@ -21,9 +21,25 @@ get_filename_component(QT_BUILD_INTERNALS_RELOCATABLE_INSTALL_PREFIX # This is an attempt to support Conan, aka handle installation of modules into a # different installation prefix than the original one. Also allow to opt out via a special variable. if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT AND - NOT QT_BUILD_INTERNALS_NO_FORCE_SET_INSTALL_PREFIX) - set(CMAKE_INSTALL_PREFIX "${QT_BUILD_INTERNALS_RELOCATABLE_INSTALL_PREFIX}" CACHE PATH + NOT QT_BUILD_INTERNALS_NO_FORCE_SET_INSTALL_PREFIX) + set(qtbi_orig_prefix "@CMAKE_INSTALL_PREFIX@") + set(qtbi_new_prefix "${QT_BUILD_INTERNALS_RELOCATABLE_INSTALL_PREFIX}") + if(CMAKE_HOST_WIN32) + # Make sure we use exactly the original prefix if it points to the same directory as the new + # one. This is needed for the case where the original prefix is passed without drive letter + # to support installing with DESTDIR set. + file(REAL_PATH "${qtbi_orig_prefix}" qtbi_real_orig_prefix) + file(REAL_PATH "${qtbi_new_prefix}" qtbi_real_new_prefix) + if(qtbi_real_orig_prefix STREQUAL qtbi_real_new_prefix) + set(qtbi_new_prefix "${qtbi_orig_prefix}") + endif() + endif() + set(CMAKE_INSTALL_PREFIX "${qtbi_new_prefix}" CACHE PATH "Install path prefix, prepended onto install directories." FORCE) + unset(qtbi_orig_prefix) + unset(qtbi_real_orig_prefix) + unset(qtbi_new_prefix) + unset(qtbi_real_new_prefix) endif() # Propagate developer builds to other modules via BuildInternals package. |