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CMake: Fix 'Cannot find source file' error with older CMakes

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Configuring a static qtdeclarative with CMake versions older than
3.18.0 fails at generation phase with

CMake Error at cmake/QtExecutableHelpers.cmake:28 (add_executable):
  Cannot find source file:

   some_path/some_target_plugin_imports_Gui.cpp

Marking the generated file as GENERATED explicitly solves the issue.

Pick-to: 6.1 6.2
Change-Id: Ife0eba61a1aab4f988d9fe7e2217d30eb96774a7
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
This commit is contained in:
Alexandru Croitor 2021-06-23 12:16:03 +02:00
parent 1981682687
commit e2c6f2ba7e
1 changed files with 10 additions and 2 deletions
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12
cmake/QtExecutableHelpers.cmake
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@ -243,7 +243,9 @@ function(qt_internal_add_executable name)
set(class_names
"${class_names_regular}${class_names_separator}${class_names_current_project}")
file(GENERATE OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${out_file} CONTENT
set(out_file_path "${CMAKE_CURRENT_BINARY_DIR}/${out_file}")
file(GENERATE OUTPUT "${out_file_path}" CONTENT
"// This file is auto-generated. Do not edit.
#include <QtPlugin>
@ -251,8 +253,14 @@ Q_IMPORT_PLUGIN($<JOIN:${class_names},)\nQ_IMPORT_PLUGIN(>)
"
CONDITION "$<NOT:$<STREQUAL:${class_names},>>"
)
# CMake versions earlier than 3.18.0 can't find the generated file for some reason,
# failing at generation phase.
# Explicitly marking the file as GENERATED fixes the issue.
set_source_files_properties("${out_file_path}" PROPERTIES GENERATED TRUE)
target_sources(${name} PRIVATE
"$<$<NOT:$<STREQUAL:${class_names},>>:${CMAKE_CURRENT_BINARY_DIR}/${out_file}>"
"$<$<NOT:$<STREQUAL:${class_names},>>:${out_file_path}>"
)
target_link_libraries(${name} PRIVATE
"$<TARGET_PROPERTY:${lib},_qt_initial_repo_plugins>"