After numerous reports of builds being broken due to the addition of the
Vulkan-Module support code in CMake, the option is being set to OFF by
default. This prevents projects which do not use the module from not being
able to build due to compiler, build system, and platform issues. Projects
wishing to enable modules can set the cmake option
VULKAN_HEADERS_ENABLE_MODULE=ON to re-enable the module support.
Add a warning in case a user decides to enable the module but the platform
doesn't support modules.
clang ships the clang-scan-deps tool separately from the compiler, making it possible
that the clang compiler supports modules but cannot be used by CMake for VulkanHppModule.
The straightforward solution is to, when using clang, check that the scan deps tools was
located. This prevents people who are using clang but not the modules from being unable
to use Vulkan-Headers when the clang-scan-deps tools is missing.
The current released versions of clang-cl does not work with CMakes
module implementation. Rather than break downstream users, just disable
the module support for the time being.
17.10 and before has a bug that prevents the vulkan.cppm module from
compiling. The module support wont be enabled unless the MSVC version
contains the fix.
Motivated by recent problems building the SC 1.0.15 spec update - will
import to VulkanSC-Headers and tweak once it's proven out for
Vulkan-Headers.
The Makefile may need to be modified when directory structure is changed
or new files are added.
Adds the VULKAN_HEADERS_ENABLE_MODULE option to control whether to build the Vulkan-Hpp module.
This is necessary to allow CI to pass while waiting for the MSVC version 17.11, which fixes an
internal compiler bug, to be added to github actions runners.
This tests the Vulkan Module building without needing to run inside an integration
test. While theoretically the integration tests will exercise the build, the nature
of running the build inside of a test makes it more difficult to diagnose if the test
is poorly setup or if the build itself isn't working.
Installing a C++ module in CMake isn't something which is well defined currently.
Rather than add code which behaves poorly or flat out wrong, it is better to not
try to install a binary module for the time being. The vulkan.cppm file is still
included in the install so downstream users can still create a module from it.
- Guarded behind `if()` version and compiler test
- Linked to `Vulkan-Headers` as a dependency
- Also added `CXX` to the `LANGUAGES` property of the project
