fixing compilation issue with unity build #8

Job	Run time
build (ubuntu-latest, x86_64, shared, debug, yes)	3m 49s
build (ubuntu-latest, x86_64, shared, debug, --asan=y, false, -asan)	4m 8s
build (ubuntu-latest, x86_64, shared, debug, --lsan=y, false)	3m 53s
build (ubuntu-latest, x86_64, shared, debug, --tsan=y, false)	4m 2s
build (ubuntu-latest, x86_64, shared, release, yes)	3m 27s
build (ubuntu-latest, x86_64, static, debug, yes)	3m 46s
build (ubuntu-latest, x86_64, static, debug, --asan=y, false, -asan)	5m 11s
build (ubuntu-latest, x86_64, static, debug, --lsan=y, false)	4m 4s
build (ubuntu-latest, x86_64, static, debug, --tsan=y, false)	5m 2s
build (ubuntu-latest, x86_64, static, release, yes)	3m 21s
	40m 43s

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