README.md

libmemcached

Update: the bug has been fixed by Canonical so this repo is no longer of any use.

This is a fork of the libmemcached library on Launchpad which seem to be no longer maintained. The original README is in README.old.

This repo mainly exists to fix a security bug (second bug report) in the authentication code. This bug causes the error

MemcachedError: error 40 from memcached_get: FAILED TO SEND AUTHENTICATION TO SERVER, no mechanism available -> libmemcached/sasl.cc:238

which has been reported here and here.

Branches

• The branch dev_1.0 mirrors lp:libmemcached/1.0.
• The branch dev_1.2 mirrors lp:libmemcached.
• The master branch is a fork of the 1.0.18 tag (last stable version) and contains the bug fix.

         1.0.19 (master)
        /
---1.0.18---dev_1
                 \
------------------dev_1.2

Install from source

To install libmemcached run:

$ git clone https://github.com/memcachier/libmemcached.git
$ cd libmemcached
$ sudo apt-get install libtool automake flex bison python-sphinx libsasl2-dev
$ ./bootstrap.sh autoreconf
$ ./configure --enable-sasl

If you get

configure: error: cannot find install-sh, install.sh, or shtool in "." "./.." "./../.."

make sure to have the shtool in the libmemcached directory (don't ask me why):

$ sudo apt-get install shtool
$ ln -s /usr/bin/shtool shtool

and continue:

$ ./configure --enable-sasl
$ make
$ sudo make install

This will install the library in /usr/local/lib.

Install pylibmc

To install pylibmc using the fixed libmemcached run

$ sudo apt-get install python3-dev libz-dev
$ pip install pylibmc --install-option="--with-libmemcached=/usr/local/lib"