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[ruby/openssl] Append flags from environment variables.

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According to the `mkmf.rb#init_mkmf`, there are command line options below.

* `--with-cflags` to set the `cflags`
* `--with-ldflags` to set the `ldflags`

For example the following command compiles with the specified flags. Note that
`MAKEFLAGS` is to print the compiler command lines.

```
$ MAKEFLAGS="V=1" \
  bundle exec rake compile -- \
  --with-cflags="-Wundef -Werror" \
  --with-ldflags="-fstack-protector"
```

However, I couldn't find command line options to append the flags. And this
commit is to append the `cflags` and `ldflags` by the environment variables.

```
$ MAKEFLAGS="V=1" \
  RUBY_OPENSSL_EXTCFLAGS="-Wundef -Werror" \
  RUBY_OPENSSL_EXTLDFLAGS="-fstack-protector" \
  bundle exec rake compile
```

https://github.com/ruby/openssl/commit/b551eb86f6
This commit is contained in:
Jun Aruga 2023-05-31 00:10:41 +02:00 committed by Kazuki Yamaguchi
parent 1740482d06
commit 0a84bd6b0b
1 changed files with 6 additions and 0 deletions
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6
ext/openssl/extconf.rb
View File

@ -18,6 +18,12 @@ dir_config("kerberos")
Logging::message "=== OpenSSL for Ruby configurator ===\n"
# Append flags from environment variables.
extcflags = ENV["RUBY_OPENSSL_EXTCFLAGS"]
append_cflags(extcflags.split) if extcflags
extldflags = ENV["RUBY_OPENSSL_EXTLDFLAGS"]
append_ldflags(extldflags.split) if extldflags
##
# Adds -DOSSL_DEBUG for compilation and some more targets when GCC is used
# To turn it on, use: --with-debug or --enable-debug