Replace macro with run-time string concatenation #237

Job	Run time
pre-job	3m 53s
windows-build-and-test (opengl, legacy)	1h 36m 33s
windows-build-and-test (opengl, drawable)	1h 33m 55s
windows-build-and-test (egl, legacy)	1h 33m 17s
windows-build-and-test (vulkan, drawable)	1h 54m 35s
windows-build-and-test (osmesa, legacy)	1h 35m 3s
windows-build-and-test (osmesa, drawable)	1h 32m 33s
Windows CI Result	1s
	9h 49m 50s

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