diff options
| author | Joerg Bornemann <joerg.bornemann@qt.io> | 2020-12-17 13:41:38 +0100 |
|---|---|---|
| committer | Joerg Bornemann <joerg.bornemann@qt.io> | 2020-12-21 13:22:26 +0100 |
| commit | 41aff1cd938457539fd6fd1009a3859de6b78095 (patch) | |
| tree | acd2d826a70d1bc6f2362de08586ef5a9b4c9215 /CMakeLists.txt | |
| parent | c6379e34993370e7e2208b51be384b738ce35817 (diff) | |
CMake: Bail out if the build dir is symlinked
Building Qt in a symlinked build directory leads to all kind of issues,
like unnecessary rebuilds, strange compilation errors or already errors
at configure time.
Detect this situation and bail out early with an informative error
message.
Task-number: QTBUG-88418
Task-number: QTBUG-89559
Change-Id: I70c16e11a7eede7a183f6f56b73ea93f985312f3
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
Reviewed-by: Gatis Paeglis <gatis.paeglis@qt.io>
Reviewed-by: Liang Qi <liang.qi@qt.io>
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 3557cad293..5fb65fbd28 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -8,6 +8,16 @@ cmake_minimum_required(VERSION 3.16) # Get the repo version and CMake policy details include(.cmake.conf) +# Bail out if parts of the build directory's components are symlinks. +get_filename_component(build_dir_absolute "${CMAKE_BINARY_DIR}" ABSOLUTE) +get_filename_component(build_dir_realpath "${CMAKE_BINARY_DIR}" REALPATH) +if(NOT build_dir_absolute STREQUAL build_dir_realpath) + message(FATAL_ERROR "The build path \"${CMAKE_BINARY_DIR}\" contains symlinks. \ +This is not supported. Please use some other - transparent - mechanism to map directories.") +endif() +unset(build_dir_absolute) +unset(build_dir_realpath) + # Early check to reduce chance of warning being lost in the output include("${CMAKE_CURRENT_SOURCE_DIR}/cmake/QtCMakeVersionHelpers.cmake") qt_internal_check_for_suitable_cmake_version() |