Fix clang-18 build (take 2) #260

Job	Run time
gcc-13 system	8m 46s
gcc-12 system	16m 11s
gcc-11 build	47m 23s
gcc-10 build	40m 54s
gcc-9 build	46m 59s
gcc-8 build	45m 32s
gcc-7 build	46m 9s
clang-18 system	6m 1s
clang-17 system	6m 52s
clang-16 system	6m 32s
clang-15 build	8m 49s
clang-14 build	16m 30s
clang-13 build	11m 52s
clang-12 build	48m 10s
clang-11 build	46m 55s
clang-10 build	47m 24s
clang-9 build	47m 25s
clang-8 build	43m 50s
clang-7 build	47m 36s
clang-6.0 build	46m 36s
mingw-w64 build	46m 6s
crossbuild-essential-arm64 build	44m 35s
crossbuild-essential-ppc64el build	48m 10s
crossbuild-essential-s390x build	46m 57s
	13h 42m 14s

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