linux

Fix a build issue when compiling with `-fno-rtti` (#606) #1543

Job	Run time
build (g++-8, Debug, 17, ubuntu-20.04, ON)	6m 5s
build (g++-8, Release, 17, ubuntu-20.04, ON)	8m 4s
build (g++-10, Debug, 17, ubuntu-20.04, ON)	6m 36s
build (g++-10, Release, 17, ubuntu-20.04, ON)	9m 12s
build (g++-13, Release, 23, ubuntu-20.04, ON, sudo apt -o Acquire::Retries=5 install g++-13)	17m 34s
build (g++-13, Debug, 23, ubuntu-20.04, ON, sudo apt -o Acquire::Retries=5 install g++-13)	13m 34s
build (g++-10, Release, 17, ubuntu-20.04, OFF, -DQUILL_NO_EXCEPTIONS=ON -DQUILL_BUILD_TESTS=ON)	1m 30s
build (g++-10, Release, 20, ubuntu-20.04, ON, -DQUILL_USE_VALGRIND=ON, -T memcheck, sudo apt -o A...	18m 48s
build (clang++-12, Release, 20, ubuntu-20.04, ON, -DQUILL_SANITIZE_ADDRESS=ON)	21m 35s
build (clang++-12, Release, 20, ubuntu-20.04, ON, -DQUILL_SANITIZE_THREAD=ON)	15m 56s
	1h 58m 54s

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