1 files changed, 6 insertions, 0 deletions
diff --git a/Library/Formula/bash-completion.rb b/Library/Formula/bash-completion.rb
index bf987d241..478b4fa0b 100644
--- a/Library/Formula/bash-completion.rb
+++ b/Library/Formula/bash-completion.rb
@@ -12,6 +12,12 @@ class BashCompletion < Formula
       s.gsub! 'readlink -f', "readlink"
     end
 
+    if ARGV.build_head?
+      system "aclocal"
+      system "autoconf"
+      system "automake --add-missing"
+    end
+
     system "./configure", "--prefix=#{prefix}"
     system "make install"