Should be able to link against an external instance of unified-runtime instead of compiling and installing it from this project

[bwarden]

unified-runtime can be built, packaged, and distributed separately. This is desirable for OS distributions like Clear Linux. The cmake configuration for this compiler should be able to use an external version, if it exists. In that case it also should not add umf as an install target.

llvm/sycl/cmake/modules/FetchUnifiedRuntime.cmake

Lines 319 to 322 in 6aa808f

	install(TARGETS umf
	LIBRARY DESTINATION "lib${LLVM_LIBDIR_SUFFIX}" COMPONENT unified-memory-framework
	ARCHIVE DESTINATION "lib${LLVM_LIBDIR_SUFFIX}" COMPONENT unified-memory-framework
	RUNTIME DESTINATION "bin" COMPONENT unified-memory-framework)

[kbenzie]

Since the linked file resides in sycl/cmake/modules and not unified-runtime the installation of the umf target is part of the SYCL RT build system.

Therefore, since the unified-runtime code is mirrored to https://github.com/oneapi-src/unified-runtime that can be used for standalone builds which do not inlude the umf install.

[kbenzie]

Workaround was provided and received no further feedback, closing.