Got following error during mysql2
gem installation
sugiartos-MacBook-Pro:aaero sugiarto$ gem install mysql2
Building native extensions. This could take a while...
ERROR: Error installing mysql2:
ERROR: Failed to build gem native extension.
current directory: /Users/sugiarto/.rbenv/versions/3.3.3/lib/ruby/gems/3.3.0/gems/mysql2-0.5.6/ext/mysql2
/Users/sugiarto/.rbenv/versions/3.3.3/bin/ruby extconf.rb
checking for rb_absint_size()... yes
checking for rb_absint_singlebit_p()... yes
checking for rb_gc_mark_movable()... yes
checking for rb_wait_for_single_fd()... yes
checking for rb_enc_interned_str() in ruby.h... yes
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Using --with-openssl-dir=/opt/homebrew/opt/openssl@3
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Using mysql_config at /opt/homebrew/opt/mysql-client/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_DEFAULT_AUTH in mysql.h... yes
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
checking for mysql_ssl_set() 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/opt/mysql-client/lib
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creating Makefile
current directory: /Users/sugiarto/.rbenv/versions/3.3.3/lib/ruby/gems/3.3.0/gems/mysql2-0.5.6/ext/mysql2
make DESTDIR\= sitearchdir\=./.gem.20241114-81402-f1ge80 sitelibdir\=./.gem.20241114-81402-f1ge80 clean
current directory: /Users/sugiarto/.rbenv/versions/3.3.3/lib/ruby/gems/3.3.0/gems/mysql2-0.5.6/ext/mysql2
make DESTDIR\= sitearchdir\=./.gem.20241114-81402-f1ge80 sitelibdir\=./.gem.20241114-81402-f1ge80
compiling client.c
In file included from client.c:15:
./mysql_enc_name_to_ruby.h:43:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
43 | mysql2_mysql_enc_name_to_rb_hash (str, len)
| ^
./mysql_enc_name_to_ruby.h:86:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
86 | mysql2_mysql_enc_name_to_rb (str, len)
| ^
2 warnings generated.
compiling infile.c
compiling mysql2_ext.c
compiling result.c
result.c:304:35: warning: implicit conversion loses integer precision: 'unsigned long' to 'int' [-Wshorten-64-to-32]
304 | precision = field->length - (field->decimals > 0 ? 2 : 1);
| ~ ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
compiling statement.c
linking shared-object mysql2/mysql2.bundle
ld: library 'zstd' not found
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/sugiarto/.rbenv/versions/3.3.3/lib/ruby/gems/3.3.0/gems/mysql2-0.5.6 for inspection.
Results logged to /Users/sugiarto/.rbenv/versions/3.3.3/lib/ruby/gems/3.3.0/extensions/arm64-darwin-24/3.3.0/mysql2-0.5.6/gem_make.out
A new release of RubyGems is available: 3.5.11 → 3.5.23!
Run `gem update --system 3.5.23` to update your installation.
And fixed using following command:
sugiartos-MacBook-Pro:aaero sugiarto$ gem install mysql2 -- --with-cflags="-Wno-error=implicit-function-declaration" --with-ldflags=-L/opt/homebrew/opt/zstd/lib
Building native extensions with: '--with-cflags=-Wno-error=implicit-function-declaration --with-ldflags=-L/opt/homebrew/opt/zstd/lib'
This could take a while...
Successfully installed mysql2-0.5.6
Parsing documentation for mysql2-0.5.6
Installing ri documentation for mysql2-0.5.6
Done installing documentation for mysql2 after 1 seconds
1 gem installed
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