Description:
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Trying to install scrypt on my machine is throwing an error:

sh-3.2# pecl install scrypt
downloading scrypt-1.2.tgz ...
Starting to download scrypt-1.2.tgz (20,361 bytes)
.......done: 20,361 bytes
could not extract the package.xml file from "/private/tmp/pear/download/scrypt-1.2.tgz"
Download of "pecl/scrypt" succeeded, but it is not a valid package archive
Error: cannot download "pecl/scrypt"
Download failed
install failed

When I go to the temp download directory, I can manually untar the tarball, but it creates the package.xml _outside_ of the resulting scrypt-1.2/ directory. If I move the package.xml file to be inside the scrypt-1.2/ directory and run pecl install package.xml, the extension will build properly and pecl sees it as being installed:

pecl list
Installed packages, channel pecl.php.net:
=========================================
Package Version State
scrypt  1.2     stable