It is a continuation of libv8. I got the following error when installing the gem of Mysql.
Installing mysql2 0.5.2 with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
| item | Contents |
|---|---|
| OS.Catalina | v10.15.4 |
| Ruby | v2.5.1 |
| Ruby On Rails | v5.2.4.3 |
| MySQL | v5.6 |
** Correspondence 1) Reinstall Mysql gem **
CMD>gem uninstall mysql2
Successfully uninstalled mysql2-0.4.10
CMD>gem install mysql2
Building native extensions. This could take a while...
ERROR: Error installing mysql2:
ERROR: Failed to build gem native extension.
Even if I bundle install, it fails.
** Correspondence 2) Set environment variables and reinstall ** Execute the following command to change the environment variables
CMD>export PATH="/usr/local/opt/[email protected]/bin:$PATH"
CMD>export DYLD_LIBRARY_PATH="/usr/local/opt/[email protected]/:$DYLD_LIBRARY_PATH"
CMD>export LDFLAGS="-L/usr/local/opt/openssl/lib"
CMD>export CPPFLAGS="-I/usr/local/opt/openssl/include"
Checking environment variables
[\W staff@term]env
(abridgement)
LDFLAGS=-L/usr/local/opt/openssl/lib
CPPFLAGS=-I/usr/local/opt/openssl/include
→ After changing the environment variables, I couldn't do "bundle install" in the same way.
** Correspondence 3) After all, change the bundler settings **
CMD>bundle config --local build.mysql2 "--with-ldflags=-L/usr/local/opt/openssl/lib --with-cppflags=-I/usr/local/opt/openssl/include"
Now, "bundle install" is finally working.
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