[cmake-developers] CMake 3.13 - Generated moc files not added to VStudio solution

[Venedict Tchistopolskii]

*Lots more testing, traced down a possible issue here involving PCH and
mocs_compilation.cpp:*
get_target_property(HAS_AUTOMOC ${TargetProject} AUTOMOC)
if (HAS_AUTOMOC STREQUAL "TRUE")
set (MOC_COMPILATION
"${CMAKE_CURRENT_BINARY_DIR}/${TargetProject}_autogen/mocs_compilation.cpp")
# stdafx.h needs to be included to ensure platform definitions are visible
set_property(SOURCE "${MOC_COMPILATION}" APPEND_STRING PROPERTY
COMPILE_FLAGS " /FI\"${PrecompiledHeader}\"")
endif()

*If this is ignored, then mocs_compilation.cpp is visible in solution
explorer post generation (no need to build). Build ofc proceeds fine, no
unresolved externals/etc.*

*Please advise.*

*VT*

On Mon, Jan 28, 2019 at 11:25 PM Venedict Tchistopolskii <venytch at gmail.com>
wrote:

> Current automoc settings more or less, it's a solution with a few projects
> some of which are marked AUTOMOC:
> ## Relative to root in solution explorer
> set_property(GLOBAL PROPERTY AUTOGEN_TARGETS_FOLDER
> "${VS_FOLDER_PREFIX}/Sandbox/AUTOMOC_Targets")
> ## Relative to each project
> set_property(GLOBAL PROPERTY AUTOGEN_SOURCE_GROUP "AUTOMOC_Generated")
>
> AUTOGEN_TARGETS_FOLDER doesn't get created, but in CMake 3.12 it did the
> same and worked.
>
> AUTOMOC_Generated gets created (per project ofc) and added in CMake 3.12
> during the build.
> For CMake 3.13 it gets created, but not added (not visible in solution
> explorer) during build, gotta re-run CMake to include it.
>
> On Mon, Jan 28, 2019 at 11:04 PM Venedict Tchistopolskii <
> venytch at gmail.com> wrote:
>
>> tl;dr, the below does not work for me:
>>
>> The resulting moc_<basename>.cpp files are generated in custom
>> directories and automatically included in a generated
>> <AUTOGEN_BUILD_DIR>/mocs_compilation.cpp file, *which is compiled as
>> part of the target. (nope....)*
>>
>> On Mon, Jan 28, 2019 at 10:06 PM Venedict Tchistopolskii <
>> venytch at gmail.com> wrote:
>>
>>> The first CMake generation pass: Generates but no inclusion
>>>
>>>
>>>
>>> *Forcing a second pass makes it include the newly generated moc.*
>>> It says *"AutoMoc: Generating 'XXXXX' because the MOC settings changed"*
>>>
>>> I'm not too clear on why this is happening, any ideas on how to fix it,
>>> or force it to reload whatever 'moc settings' are changing?
>>>
>>> Possibly related: https://gitlab.kitware.com/cmake/cmake/issues/17456
>>>
>>> e.g. mocs_compilation.cpp and include_XXXX folder -> Created but not
>>> added until CMake re-run....
>>>
>>
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