Fix "make install" operation when CPP_THREAD_SAFETY_TEST is selected #5356

Job	Run time
build (ubuntu-latest, gfortran, cmake)	44m 55s
build (ubuntu-latest, gfortran, make)	21m 20s
build (ubuntu-latest, flang, cmake)	46m 12s
cross_build (mips64el, mips64el-linux-gnuabi64, DYNAMIC_ARCH=1 TARGET=GENERIC)	6m 39s
msys2 (UCRT64, int32, Release)	16m 19s
build (ubuntu-latest, flang, make)	19m 50s
cross_build (riscv64, riscv64-linux-gnu, TARGET=RISCV64_GENERIC)	10m 2s
msys2 (UCRT64, int64, Release)	18m 34s
build (macos-latest, gfortran, cmake)	16m 42s
cross_build (mipsel, mipsel-linux-gnu, TARGET=MIPS1004K)	6m 2s
msys2 (MINGW32, int32, Release)	19m 9s
build (macos-latest, gfortran, make)	4m 42s
cross_build (alpha, alpha-linux-gnu, TARGET=EV4)	5m 3s
msys2 (CLANG64, int32, Release)	18m 12s
msys2 (CLANG64, int64, Release)	18m 12s
msys2 (UCRT64, int32, None, mingw-w64-ucrt-x86_64, fc)	15m 2s
neoverse_build	7m 1s
	4h 53m 56s

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