Here’s the easiest way to install Growl on OS X Lion – Go to the Mac Appstore and install it.
or compile it.
Steps I followed to compile it.
$brew install mercurial $hg clone https://code.google.com/p/growl/ $cd growl $hg tags | sort #find the latest version $hg update "Growl.app 1.3.3"
Create a new certificate.
Open Keychain Access.app
KeyChain Access > Certificate Assistant > Create a Certificate
Name: 3rd Party Mac Developer Application: The Growl Project, LLC
Identity Type: Self Signed Root (default)
Type: Code Signing
you’ll need Xcode for the next step.
$xcodebuild -project Growl.xcodeproj -target Growl.app -configuration Release $cd build/Release/ $cp Growl.app /Applications/
Note: I had to quit and restart the Twitter client to make it appear in the Growl Applications list.