make fails on ubuntu: missing llvm-ar

[pelletier]

Running make in the root directory yield this on my ubuntu machine:

#
# Install the startup files (crt1.o etc).
#
mkdir -p "/home/thomas/src/github.com/stealthrocket/wzprof/testdata/.wasi-libc/sysroot/lib/wasm32-wasi" && \
cp build/wasm32-wasi/libc-bottom-half/crt/crt1.o build/wasm32-wasi/libc-bottom-half/crt/crt1-command.o build/wasm32-wasi/libc-bottom-half/crt/crt1-reactor.o "/home/thomas/src/github.com/stealthrocket/wzprof/testdata/.wasi-libc/sysroot/lib/wasm32-wasi"
# On Windows, the commandline for the ar invocation got too long, so it needs to be split up.
llvm-ar crs /home/thomas/src/github.com/stealthrocket/wzprof/testdata/.wasi-libc/sysroot/lib/wasm32-wasi/libc.a build/wasm32-wasi/dlmalloc/src/dlmalloc.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/dirent/closedir.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/dirent/dirfd.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/dirent/fdclosedir.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/dirent/fdopendir.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/dirent/opendirat.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/dirent/readdir.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/dirent/rewinddir.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/dirent/scandirat.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/dirent/seekdir.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/dirent/telldir.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/errno/errno.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/fcntl/fcntl.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/fcntl/openat.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/fcntl/posix_fadvise.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/fcntl/posix_fallocate.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/poll/poll.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/sched/sched_yield.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/stdio/renameat.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/stdlib/_Exit.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/sys/ioctl/ioctl.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/sys/select/pselect.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/sys/select/select.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/sys/socket/getsockopt.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/sys/socket/recv.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/sys/socket/send.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/sys/socket/shutdown.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/sys/stat/fstat.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/sys/stat/fstatat.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/sys/stat/futimens.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/sys/stat/mkdirat.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/sys/stat/utimensat.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/sys/time/gettimeofday.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/sys/uio/preadv.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/sys/uio/pwritev.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/sys/uio/readv.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/sys/uio/writev.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/time/CLOCK_MONOTONIC.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/time/CLOCK_REALTIME.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/time/clock_getres.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/time/clock_gettime.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/time/clock_nanosleep.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/time/nanosleep.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/time/time.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/unistd/faccessat.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/unistd/fdatasync.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/unistd/fsync.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/unistd/ftruncate.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/unistd/linkat.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/unistd/lseek.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/unistd/pread.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/unistd/pwrite.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/unistd/read.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/unistd/readlinkat.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/unistd/sleep.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/unistd/symlinkat.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/unistd/unlinkat.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/unistd/usleep.o build/wasm32-wasi/libc-bottom-half/cloudlibc/src/libc/unistd/write.o build/wasm32-wasi/libc-bottom-half/sources/__errno_location.o build/wasm32-wasi/libc-bottom-half/sources/__main_void.o build/wasm32-wasi/libc-bottom-half/sources/__wasilibc_dt.o build/wasm32-wasi/libc-bottom-half/sources/__wasilibc_environ.o build/wasm32-wasi/libc-bottom-half/sources/__wasilibc_fd_renumber.o build/wasm32-wasi/libc-bottom-half/sources/__wasilibc_initialize_environ.o build/wasm32-wasi/libc-bottom-half/sources/__wasilibc_real.o build/wasm32-wasi/libc-bottom-half/sources/__wasilibc_rmdirat.o build/wasm32-wasi/libc-bottom-half/sources/__wasilibc_tell.o build/wasm32-wasi/libc-bottom-half/sources/__wasilibc_unlinkat.o build/wasm32-wasi/libc-bottom-half/sources/abort.o build/wasm32-wasi/libc-bottom-half/sources/accept.o build/wasm32-wasi/libc-bottom-half/sources/at_fdcwd.o build/wasm32-wasi/libc-bottom-half/sources/chdir.o build/wasm32-wasi/libc-bottom-half/sources/complex-builtins.o build/wasm32-wasi/libc-bottom-half/sources/environ.o build/wasm32-wasi/libc-bottom-half/sources/errno.o build/wasm32-wasi/libc-bottom-half/sources/getcwd.o build/wasm32-wasi/libc-bottom-half/sources/getentropy.o build/wasm32-wasi/libc-bottom-half/sources/isatty.o build/wasm32-wasi/libc-bottom-half/sources/math/fmin-fmax.o build/wasm32-wasi/libc-bottom-half/sources/math/math-builtins.o build/wasm32-wasi/libc-bottom-half/sources/posix.o build/wasm32-wasi/libc-bottom-half/sources/preopens.o build/wasm32-wasi/libc-bottom-half/sources/reallocarray.o build/wasm32-wasi/libc-bottom-half/sources/sbrk.o build/wasm32-wasi/libc-bottom-half/sources/truncate.o build/wasm32-wasi/libc-top-half/musl/src/complex/__cexp.o build/wasm32-wasi/libc-top-half/musl/src/complex/__cexpf.o build/wasm32-wasi/libc-top-half/musl/src/complex/cabs.o build/wasm32-wasi/libc-top-half/musl/src/complex/cabsf.o build/wasm32-wasi/libc-top-half/musl/src/complex/cabsl.o build/wasm32-wasi/libc-top-half/musl/src/complex/cacos.o build/wasm32-wasi/libc-top-half/musl/src/complex/cacosf.o build/wasm32-wasi/libc-top-half/musl/src/complex/cacosh.o build/wasm32-wasi/libc-top-half/musl/src/complex/cacoshf.o build/wasm32-wasi/libc-top-half/musl/src/complex/cacoshl.o build/wasm32-wasi/libc-top-half/musl/src/complex/cacosl.o build/wasm32-wasi/libc-top-half/musl/src/complex/carg.o build/wasm32-wasi/libc-top-half/musl/src/complex/cargf.o build/wasm32-wasi/libc-top-half/musl/src/complex/cargl.o build/wasm32-wasi/libc-top-half/musl/src/complex/casin.o build/wasm32-wasi/libc-top-half/musl/src/complex/casinf.o build/wasm32-wasi/libc-top-half/musl/src/complex/casinh.o build/wasm32-wasi/libc-top-half/musl/src/complex/casinhf.o build/wasm32-wasi/libc-top-half/musl/src/complex/casinhl.o build/wasm32-wasi/libc-top-half/musl/src/complex/casinl.o build/wasm32-wasi/libc-top-half/musl/src/complex/catan.o build/wasm32-wasi/libc-top-half/musl/src/complex/catanf.o build/wasm32-wasi/libc-top-half/musl/src/complex/catanh.o build/wasm32-wasi/libc-top-half/musl/src/complex/catanhf.o build/wasm32-wasi/libc-top-half/musl/src/complex/catanhl.o build/wasm32-wasi/libc-top-half/musl/src/complex/catanl.o build/wasm32-wasi/libc-top-half/musl/src/complex/ccos.o build/wasm32-wasi/libc-top-half/musl/src/complex/ccosf.o build/wasm32-wasi/libc-top-half/musl/src/complex/ccosh.o build/wasm32-wasi/libc-top-half/musl/src/complex/ccoshf.o build/wasm32-wasi/libc-top-half/musl/src/complex/ccoshl.o build/wasm32-wasi/libc-top-half/musl/src/complex/ccosl.o build/wasm32-wasi/libc-top-half/musl/src/complex/cexp.o build/wasm32-wasi/libc-top-half/musl/src/complex/cexpf.o build/wasm32-wasi/libc-top-half/musl/src/complex/cexpl.o build/wasm32-wasi/libc-top-half/musl/src/complex/clog.o build/wasm32-wasi/libc-top-half/musl/src/complex/clogf.o build/wasm32-wasi/libc-top-half/musl/src/complex/clogl.o build/wasm32-wasi/libc-top-half/musl/src/complex/conj.o build/wasm32-wasi/libc-top-half/musl/src/complex/conjf.o build/wasm32-wasi/libc-top-half/musl/src/complex/conjl.o build/wasm32-wasi/libc-top-half/musl/src/complex/cpow.o build/wasm32-wasi/libc-top-half/musl/src/complex/cpowf.o build/wasm32-wasi/libc-top-half/musl/src/complex/cpowl.o build/wasm32-wasi/libc-top-half/musl/src/complex/cproj.o build/wasm32-wasi/libc-top-half/musl/src/complex/cprojf.o build/wasm32-wasi/libc-top-half/musl/src/complex/cprojl.o build/wasm32-wasi/libc-top-half/musl/src/complex/csin.o build/wasm32-wasi/libc-top-half/musl/src/complex/csinf.o build/wasm32-wasi/libc-top-half/musl/src/complex/csinh.o build/wasm32-wasi/libc-top-half/musl/src/complex/csinhf.o build/wasm32-wasi/libc-top-half/musl/src/complex/csinhl.o build/wasm32-wasi/libc-top-half/musl/src/complex/csinl.o build/wasm32-wasi/libc-top-half/musl/src/complex/csqrt.o build/wasm32-wasi/libc-top-half/musl/src/complex/csqrtf.o build/wasm32-wasi/libc-top-half/musl/src/complex/csqrtl.o build/wasm32-wasi/libc-top-half/musl/src/complex/ctan.o build/wasm32-wasi/libc-top-half/musl/src/complex/ctanf.o build/wasm32-wasi/libc-top-half/musl/src/complex/ctanh.o build/wasm32-wasi/libc-top-half/musl/src/complex/ctanhf.o build/wasm32-wasi/libc-top-half/musl/src/complex/ctanhl.o build/wasm32-wasi/libc-top-half/musl/src/complex/ctanl.o build/wasm32-wasi/libc-top-half/musl/src/conf/confstr.o build/wasm32-wasi/libc-top-half/musl/src/conf/fpathconf.o build/wasm32-wasi/libc-top-half/musl/src/conf/legacy.o build/wasm32-wasi/libc-top-half/musl/src/conf/pathconf.o build/wasm32-wasi/libc-top-half/musl/src/conf/sysconf.o build/wasm32-wasi/libc-top-half/musl/src/crypt/crypt.o build/wasm32-wasi/libc-top-half/musl/src/crypt/crypt_blowfish.o build/wasm32-wasi/libc-top-half/musl/src/crypt/crypt_des.o build/wasm32-wasi/libc-top-half/musl/src/crypt/crypt_md5.o build/wasm32-wasi/libc-top-half/musl/src/crypt/crypt_r.o build/wasm32-wasi/libc-top-half/musl/src/crypt/crypt_sha256.o build/wasm32-wasi/libc-top-half/musl/src/crypt/crypt_sha512.o build/wasm32-wasi/libc-top-half/musl/src/crypt/encrypt.o build/wasm32-wasi/libc-top-half/musl/src/ctype/__ctype_b_loc.o build/wasm32-wasi/libc-top-half/musl/src/ctype/__ctype_get_mb_cur_max.o build/wasm32-wasi/libc-top-half/musl/src/ctype/__ctype_tolower_loc.o build/wasm32-wasi/libc-top-half/musl/src/ctype/__ctype_toupper_loc.o build/wasm32-wasi/libc-top-half/musl/src/ctype/isalnum.o build/wasm32-wasi/libc-top-half/musl/src/ctype/isalpha.o build/wasm32-wasi/libc-top-half/musl/src/ctype/isascii.o build/wasm32-wasi/libc-top-half/musl/src/ctype/isblank.o build/wasm32-wasi/libc-top-half/musl/src/ctype/iscntrl.o build/wasm32-wasi/libc-top-half/musl/src/ctype/isdigit.o build/wasm32-wasi/libc-top-half/musl/src/ctype/isgraph.o build/wasm32-wasi/libc-top-half/musl/src/ctype/islower.o build/wasm32-wasi/libc-top-half/musl/src/ctype/isprint.o build/wasm32-wasi/libc-top-half/musl/src/ctype/ispunct.o build/wasm32-wasi/libc-top-half/musl/src/ctype/isspace.o build/wasm32-wasi/libc-top-half/musl/src/ctype/isupper.o build/wasm32-wasi/libc-top-half/musl/src/ctype/iswalnum.o build/wasm32-wasi/libc-top-half/musl/src/ctype/iswalpha.o build/wasm32-wasi/libc-top-half/musl/src/ctype/iswblank.o build/wasm32-wasi/libc-top-half/musl/src/ctype/iswcntrl.o build/wasm32-wasi/libc-top-half/musl/src/ctype/iswctype.o build/wasm32-wasi/libc-top-half/musl/src/ctype/iswdigit.o build/wasm32-wasi/libc-top-half/musl/src/ctype/iswgraph.o build/wasm32-wasi/libc-top-half/musl/src/ctype/iswlower.o build/wasm32-wasi/libc-top-half/musl/src/ctype/iswprint.o build/wasm32-wasi/libc-top-half/musl/src/ctype/iswpunct.o build/wasm32-wasi/libc-top-half/musl/src/ctype/iswspace.o build/wasm32-wasi/libc-top-half/musl/src/ctype/iswupper.o build/wasm32-wasi/libc-top-half/musl/src/ctype/iswxdigit.o build/wasm32-wasi/libc-top-half/musl/src/ctype/isxdigit.o build/wasm32-wasi/libc-top-half/musl/src/ctype/toascii.o build/wasm32-wasi/libc-top-half/musl/src/ctype/tolower.o build/wasm32-wasi/libc-top-half/musl/src/ctype/toupper.o build/wasm32-wasi/libc-top-half/musl/src/ctype/towctrans.o build/wasm32-wasi/libc-top-half/musl/src/ctype/wcswidth.o build/wasm32-wasi/libc-top-half/musl/src/ctype/wctrans.o build/wasm32-wasi/libc-top-half/musl/src/ctype/wcwidth.o build/wasm32-wasi/libc-top-half/musl/src/dirent/alphasort.o
make[1]: llvm-ar: No such file or directory
make[1]: *** [Makefile:491: /home/thomas/src/github.com/stealthrocket/wzprof/testdata/.wasi-libc/sysroot/lib/wasm32-wasi/libc.a] Error 127
make[1]: *** Waiting for unfinished jobs....
make[1]: Leaving directory '/home/thomas/src/github.com/stealthrocket/wzprof/testdata/.wasi-libc'
make: *** [Makefile:40: testdata/.sysroot/lib/wasm32-wasi/libc.a] Error 2

Seems like ubuntu installs it as /usr/bin/llvm-ar-15. Manually linking it as llvm-ar allows the make process to continue, until it hits the same issue for llvm-nm.

Should we leave the installation of llvm/wasi-sdk to the user and rely on the WASI_SDK_PATH environment variable instead?