No matters what kind of options I'm going to use (including the suggestions on the rbenv site), I'm struggling to install ruby.
I always get the following error message
Downloading ruby-3.0.3.tar.gz...
-> https://cache.ruby-lang.org/pub/ruby/3.0/ruby-3.0.3.tar.gz
Installing ruby-3.0.3...
ruby-build: using readline from homebrew
BUILD FAILED (Ubuntu 21.10 using ruby-build 20211124)
Inspect or clean up the working tree at /tmp/ruby-build.20211125103437.425673.LUEnWK
Results logged to /tmp/ruby-build.20211125103437.425673.log
Last 10 log lines:
checking pthread.h presence... yes
checking for pthread.h... yes
checking if make is GNU make... yes
.ext/include/x86_64-linux/ruby/config.h updated
configure: ruby library version = 3.0.0
configure: creating ./config.status
config.status: creating GNUmakefile
config.status: creating Makefile
config.status: creating ruby-3.0.pc
./config.status: line 1207: /home/linuxbrew/.linuxbrew/opt/zlib/lib/pkgconfig: Is a directory
I initially thought this was connected to some of the export in the ~/.zshrc file, e.g. the CPPFLAGS, but this is not the case. OpenSSL, either the 1.1 or the 3.0 accordingly changed in the RUBY_CONFIGURE_OPTS doesn't seem to help. But in fact is not even mentioned in the output as the source of the problem as I've noticed in other answers.
I also tried to install an old version, but again the same problem thus suggesting there is some compiler missing, but at this stage I'm ignoring which.
In the same computer I have also Python installed, which - as far as I skimmed - seems to cause some problems? This should have in theory wiped out by excluding the previous flags.
Any idea on how to solve?
