it is included in debian package
https://www.facebook.com/hphp/posts/
10151161118994326
Source1: http://www.monkey.org/~provos/libevent-1.4.14b-stable.tar.gz
# Source1-md5: a00e037e4d3f9e4fe9893e8a2d27918c
Source2: get-source.sh
+Source3: http://ftp.oregonstate.edu/pub/hiphop/resources/hdf/static.mime-types.hdf
+# Source3-md5: 1cf0a28bc27c3b407ab062b146f4e27e
Patch0: cmake-missing-library.patch
Patch1: libevent14.patch
Patch3: system-xhp.patch