Hi all,
I have a situation in which I would need to define a dependency for
the automoc target. Is it possible to do this somehow?
Basically, I have a setup in which a resource that is to be embedded
is generated by another target. However, due to parallelism in the
build and the lack of a dependency of the _automoc target on this
target, I often get an error like :
RCC: Error in '.../build/resources.qrc': Cannot find file
'../build/myfile.txt'
I tried adding a dependency using add_dependencies, but this doesn't
seem to work.
Minimal example code is below (you will need to create an empty
main.cpp though). I am using CMake 3.7.1 with a VS generator. My build
command looks like 'cmake --build . -- -m'.
cmake_minimum_required(VERSION 3.7)
project(test CXX)
find_package(Qt5Quick REQUIRED)
set(CMAKE_AUTORCC ON)
# Define target that generates some files.
add_custom_target(generate_files)
add_custom_command(TARGET generate_files COMMAND sleep 1) # Wait a bit...
add_custom_command(TARGET generate_files COMMAND ${CMAKE_COMMAND} -E touch
${CMAKE_BINARY_DIR}/myfile.txt)
# Write the .qrc file for embedding these generated files.
file(WRITE ${CMAKE_BINARY_DIR}/resources.qrc
"<!DOCTYPE RCC><RCC
version=\"1.0\">\n<qresource>\n<file>${CMAKE_BINARY_DIR}/myfile.txt</file>\n</qresource>\n</RCC>")
add_library(foo SHARED main.cpp ${CMAKE_BINARY_DIR}/resources.qrc)
add_dependencies(foo generate_files)
target_link_libraries(foo PRIVATE Qt5::Quick)
Thanks!
Regards,
Yves
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