Couldn't install mysql2 0.5.3 in M1 MacBook Big Sur

Question

Hi I am trying to install mysql2 gem in MacBook M1 Big Sur, I am getting the the following errors.

ld: library not found for -lzstd
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [mysql2.bundle] Error 1

Full Error

Using mysql_config at /opt/homebrew/bin/mysql_config
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checking for mysql.h... yes
checking for errmsg.h... yes
checking for SSL_MODE_DISABLED in mysql.h... yes
checking for SSL_MODE_PREFERRED in mysql.h... yes
checking for SSL_MODE_REQUIRED in mysql.h... yes
checking for SSL_MODE_VERIFY_CA in mysql.h... yes
checking for SSL_MODE_VERIFY_IDENTITY in mysql.h... yes
checking for MYSQL.net.vio in mysql.h... yes
checking for MYSQL.net.pvio in mysql.h... no
checking for MYSQL_ENABLE_CLEARTEXT_PLUGIN in mysql.h... yes
checking for SERVER_QUERY_NO_GOOD_INDEX_USED in mysql.h... yes
checking for SERVER_QUERY_NO_INDEX_USED in mysql.h... yes
checking for SERVER_QUERY_WAS_SLOW in mysql.h... yes
checking for MYSQL_OPTION_MULTI_STATEMENTS_ON in mysql.h... yes
checking for MYSQL_OPTION_MULTI_STATEMENTS_OFF in mysql.h... yes
checking for my_bool in mysql.h... no
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Don't know how to set rpath on your system, if MySQL libraries are not in path mysql2 may not load
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Setting libpath to /opt/homebrew/Cellar/mysql/8.0.26/lib
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creating Makefile

current directory: /Users/santosh/.rvm/gems/ruby-2.6.3/gems/mysql2-0.5.3/ext/mysql2
make "DESTDIR=" clean

current directory: /Users/santosh/.rvm/gems/ruby-2.6.3/gems/mysql2-0.5.3/ext/mysql2
make "DESTDIR="
compiling client.c
compiling infile.c
compiling mysql2_ext.c
compiling result.c
compiling statement.c
linking shared-object mysql2/mysql2.bundle
ld: library not found for -lzstd
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [mysql2.bundle] Error 1

make failed, exit code 2

Gem files will remain installed in /Users/santosh/.rvm/gems/ruby-2.6.3/gems/mysql2-0.5.3 for inspection.
Results logged to /Users/santosh/.rvm/gems/ruby-2.6.3/extensions/-darwin-20/2.6.0/mysql2-0.5.3/gem_make.out

An error occurred while installing mysql2 (0.5.3), and Bundler cannot continue.
Make sure that `gem install mysql2 -v '0.5.3' --source 'https://rubygems.org/'` succeeds before bundling.

I tried to install with different version of Ruby, nothing went well.

Answer 1

I had this problem too and I think what finally solved it was running:

gem install mysql2 -v '0.5.3' -- --with-opt-dir=$(brew --prefix openssl) --with-ldflags=-L/opt/homebrew/Cellar/zstd/1.5.0/lib

However, for what it's worth, I'd previously installed without success but might have also been needed:

• homebrew, and brew doctor said it was ready to brew .
• Xcode tools xcode-select --install
• mysql brew install mysql (and I could make a local connection)
• openssl brew install openssl && brew link openssl --force
• rbenv and rbenv rehash
• cmake brew install cmake