Allow REE to be built shared

1 files changed, 18 insertions, 1 deletions

diff --git a/Library/Formula/ruby-enterprise-edition.rb b/Library/Formula/ruby-enterprise-edition.rb
index a324dd7bb..8e7364393 100644
--- a/Library/Formula/ruby-enterprise-edition.rb
+++ b/Library/Formula/ruby-enterprise-edition.rb
@@ -11,6 +11,23 @@ class RubyEnterpriseEdition <Formula
 
   def install
     ENV.gcc_4_2 # fails with LLVM
-    system "./installer --auto #{prefix} --no-tcmalloc"
+    args = ['./installer', "--auto #{prefix}", '--no-tcmalloc']
+    args.push('-c --enable-shared') if ARGV.include?('--enable-shared')
+    system *args
+  end
+
+  def caveats; <<-EOS
+By default we don't compile REE as a shared library. From their documentation:
+
+  Please note that enabling --enable-shared will make the Ruby interpreter
+  about 20% slower.
+
+For desktop environments (particularly ones requiring RubyCocoa) this is
+acceptable and even desirable.
+
+If you need REE to be compiled as a shared library, you can re-compile like so:
+
+    brew install ruby-enterprise-edition --force --enable-shared
+    EOS
   end
 end