[qt/qt/qtgrpc]: Summary of bulk changes made

Git repository change summary for qt/qt/qtgrpc
Pushed by mirror-service into branch '6.12'.
Changed from f69cb57ed977b64ecdc06a081d2685167d109493 to 3d735089ac57cd8d172f7b2851a9d542db91ff87
Acknowledgement was received that this change introduces only existing code that has been pushed to another public open source repository.

This change contains the following new commits:

Git commit d3d5578420bfe2f1b405a5b877a6aa616acb8c51 by Qt Cherry-pick Bot (on behalf of Alexandru Croitor) on 30/07/2026 at 16:13..
CMake: Fix incorrect check for qtgrpcgen in src/tools/CMakeLists.txt

So that the warning shows correctly for the appropriate feature.

Change-Id: If24c084f4e2258d9ec9673f03190505448650fc0
Reviewed-by: Orkun Tokdemir <[email protected]>
(cherry picked from commit ebcd77a3ab056fcec5b99019a5ea43c0b8500a02)
Reviewed-by: Qt Cherry-pick Bot <[email protected]>
https://invent.kde.org/qt/qt/qtgrpc/-/commit/d3d5578420bfe2f1b405a5b877a6aa616acb8c51

Git commit 4548d6d7331fef84ccb08f26e5dff41f339deae9 by Qt Cherry-pick Bot (on behalf of Alexandru Croitor) on 30/07/2026 at 16:13..
CMake: Register lookup of Tools packages in cross-builds without deps

When building a cross-built Qt with QT_FORCE_BUILD_TOOLS=ON, if the
necessary dependencies for protobufgen and grpcgen are not available,
the tools will not be built, and as a consequence the target
Qt6<Module>Dependencies.cmake file won't register a host Tools package
dependency.

To fix that, adjust the condition that does the extra registration to
happen also when QT_FORCE_BUILD_TOOLS is ON, but the tool features are
OFF, which means the dependencies were not found.

This fixes example as external project builds for yocto CI platforms
where the above situation happens. Specifically the
find_package(Qt6 COMPONENTS Protobuf) will now do a
find_package(Qt6 COMPONENTS ProtobufTools), and similarly for the Grpc
module.

Amends 9b0eb4c95a5004a6b043e453e599240f60280efa

Task-number: QTBUG-90820
Task-number: QTBUG-96232
Change-Id: Ibaa0c658655d6d69d20ecf06dd841c191d52b04b
Reviewed-by: Orkun Tokdemir <[email protected]>
(cherry picked from commit 17f02c0e88e196fd81938f98f6015b1ca4833fd7)
Reviewed-by: Qt Cherry-pick Bot <[email protected]>
https://invent.kde.org/qt/qt/qtgrpc/-/commit/4548d6d7331fef84ccb08f26e5dff41f339deae9

Git commit 3d735089ac57cd8d172f7b2851a9d542db91ff87 by Qt Cherry-pick Bot (on behalf of Alexandru Croitor) on 30/07/2026 at 16:13..
CMake: Fix building of examples as external projects

Building the qtgrpc examples as external projects failed for various
reason. For the examples to build successfully as external projects,
we need to:

1) pass the various _ROOT / _DIR env vars to the external project
CMake, so that the project can successfully find the dependencies
from the custom locations.

The code already attempted to do the variable passing, but it didn't
work because the $ENV{Protobuf_ROOT} evaluated to FALSE in conditions,
because CMake treated the path as a variable name, and no such
variable name existed.

The fix is to use the 'NOT $ENV{VAR} STREQUAL ""' approach to check
if an environment variable has a value.

This is wrapped into a new helper function, that also takes care of
converting Windows paths to cmake paths.

2) pass QT_USE_VCPKG and other vcpkg related vars, so that if vcpkg is
used in the main build, it's also used in the external project. But
don't do it for MinGW, where we don't build the vckpg packages.
Also make sure that VCPKG_MANIFEST_INSTALL is OFF, so we don't spend
time downloading and building vcpkg packages in the external project.

3) Make sure to check both the lower-cased protobuf_ROOT and uppercase
Protobuf_ROOT env vars, which vary depending on the host platform.

4) Account for the various openssl env vars that Qt CI sets depending
on platform.

5) Don't pass grpc_ROOT for MinGW, because we don't have provisioning
for it, it's an unsupported platform for the upstream grpc library.

Task-number: QTBUG-90820
Task-number: QTBUG-96232
Change-Id: I0cf65fb218a90783c70f2359924bd8359775ab89
Reviewed-by: Orkun Tokdemir <[email protected]>
(cherry picked from commit a0fe53b7132587e950fa39905cbb036dc5d1a2b3)
Reviewed-by: Qt Cherry-pick Bot <[email protected]>
https://invent.kde.org/qt/qt/qtgrpc/-/commit/3d735089ac57cd8d172f7b2851a9d542db91ff87