Fix installation of shared library symlink (#535) #148

Job	Run time
build-native-gcc	3m 10s
build-native-llvm	5m 54s
test-native-gcc	9m 39s
build-aarch64-gcc	3m 37s
test-native-llvm	9m 49s
build-aarch64-llvm	4m 19s
build-armhf-gcc	4m 5s
build-armhf-llvm	1m 43s
build-ppc64el-gcc	4m 3s
build-ppc64el-llvm	2m 39s
build-s390x-gcc	2m 16s
build-s390x-llvm	4m 54s
build-riscv64-llvm	4m 4s
test-aarch64-gcc (qemu_cpu: "max,sve=off")	19m 50s
test-aarch64-gcc (qemu_cpu: "max,sve=on,sve128=on")	22m 12s
test-aarch64-gcc (qemu_cpu: "max,sve=on,sve256=on")	26m 57s
test-aarch64-gcc (qemu_cpu: "max,sve=on,sve512=on")	33m 39s
test-aarch64-llvm (qemu_cpu: "max,sve=off")	17m 12s
test-aarch64-llvm (qemu_cpu: "max,sve=on,sve128=on")	20m 58s
test-aarch64-llvm (qemu_cpu: "max,sve=on,sve256=on")	25m 16s
test-aarch64-llvm (qemu_cpu: "max,sve=on,sve512=on")	29m 39s
test-armhf-gcc (qemu_cpu: "max")	15m 19s
test-armhf-llvm (qemu_cpu: "max")	13m 22s
test-ppc64el-gcc (qemu_cpu: "power10")	27m 41s
test-ppc64el-llvm (qemu_cpu: "power10")	23m 59s
test-s390x-gcc (qemu_cpu: "")	23m 23s
test-s390x-llvm (qemu_cpu: "")	21m 1s
test-riscv64-llvm (qemu_cpu: "rv64,zba=true,zbb=true,zbs=true,v=false")	16m 16s
test-riscv64-llvm (qemu_cpu: "rv64,zba=true,zbb=true,zbs=true,v=true,vlen=128,elen=64,vext_spec=v1.0")	31m 3s
test-riscv64-llvm (qemu_cpu: "rv64,zba=true,zbb=true,zbs=true,v=true,vlen=256,elen=64,vext_spec=v1.0")	41m 21s
test-riscv64-llvm (qemu_cpu: "rv64,zba=true,zbb=true,zbs=true,v=true,vlen=512,elen=64,vext_spec=v1.0")	1h 2m 48s
	8h 52m 8s

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