Fix legacy single driver function assignment for versioning #92

Job	Run time
build-clang-linux (ubuntu:24.04, dynamic)	8m 4s
build-clang-linux (ubuntu:22.04, dynamic)	8m 19s
build-clang-linux (ubuntu:24.04, static)	4m 51s
build-clang-linux (ubuntu:22.04, static)	4m 55s
	26m 9s

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