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| -rw-r--r-- | share/doc/homebrew/Formula-Cookbook.md | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/share/doc/homebrew/Formula-Cookbook.md b/share/doc/homebrew/Formula-Cookbook.md index ea8f4605c..99f9263e1 100644 --- a/share/doc/homebrew/Formula-Cookbook.md +++ b/share/doc/homebrew/Formula-Cookbook.md @@ -204,11 +204,12 @@ A Hash specifies a formula dependency with some additional information. Given a Sometimes there’s hard conflict between formulae, and it can’t be avoided or circumvented with `keg_only`. -PolarSSL is a good [example](https://github.com/Homebrew/homebrew/blob/master/Library/Formula/polarssl.rb#L36-L37) formula for minor conflict. +PolarSSL is a good [example](https://github.com/Homebrew/homebrew/blob/master/Library/Formula/polarssl.rb) formula for minor conflict. -PolarSSL ship GNU’s Hello, and compiles a `hello` binary. This is obviously non-essential to PolarSSL’s functionality, and conflict with the `hello` formula would be overkill, so we just remove it. +PolarSSL ship and compile a "Hello World" executable. This is obviously non-essential to PolarSSL’s functionality, and conflict with the popular GNU `hello` formula would be overkill, so we just remove it. -However, also in the PolarSSL formulae is a [firm conflict](https://github.com/Homebrew/homebrew/blob/master/Library/Formula/polarssl.rb#L19) with `md5sha1sum`, because both `md5sha1sum` and `polarssl` compile identically-named binaries that *are* important for core functionality. +[pdftohtml](https://github.com/Homebrew/homebrew/blob/master/Library/Formula/pdftohtml.rb) provides an example of a serious +conflict, where both formula ship a identically-named binary that is essential to functionality, so a `conflicts_with` is preferable. As a general rule, `conflicts_with` should be a last-resort option. It’s a fairly blunt instrument. |