gperftools: basic CPUPROFILE usage fails on osx (with gperftools installed via brew)

I tried to follow the steps outlined in (see below links) but nothing worked:

brew install gperftools
brew test gperftools # works, sanity check

clang -o /tmp/z01 -lprofiler hello.c
CPUPROFILE=/tmp/prof.out /tmp/z01
pprof /tmp/z01 /tmp/prof.out

Using local file /tmp/z01.
Using local file /tmp/prof.out.
error: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/otool-classic: can't open file: /usr/lib/liboah.dylib (No such file or directory)
error: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/otool-classic: can't open file: /usr/lib/liboah.dylib (No such file or directory)
...

likewise with /usr/local/opt/gcc/bin/gcc-11 -o /tmp/z01 -L/usr/local/Cellar/gperftools/2.9.1/lib -lprofiler -g hello.c

links

• https://stackoverflow.com/questions/22623934/how-to-install-gprof-on-os-x
• https://stackoverflow.com/questions/10562280/line-number-in-google-perftools-cpu-profiler-on-macosx?noredirect=1&lq=1
• https://stackoverflow.com/questions/29308174/how-to-profile-from-the-command-line-on-mac-os-x?noredirect=1&lq=1
• https://gperftools.github.io/gperftools/cpuprofile.html