FYI, the linux binary doesn't run out of the box on CentOS 6 (6.5 fully updated).

./bitcoind -daemon
./bitcoind: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.15' not found (required by ./bitcoind)
./bitcoind: /lib64/libc.so.6: version `GLIBC_2.15' not found (required by ./bitcoind)
./bitcoind: /lib64/libc.so.6: version `GLIBC_2.14' not found (required by ./bitcoind)

Supported versions are:

GLIBCXX_3.4
GLIBCXX_3.4.1
GLIBCXX_3.4.2
GLIBCXX_3.4.3
GLIBCXX_3.4.4
GLIBCXX_3.4.5
GLIBCXX_3.4.6
GLIBCXX_3.4.7
GLIBCXX_3.4.8
GLIBCXX_3.4.9
GLIBCXX_3.4.10
GLIBCXX_3.4.11
GLIBCXX_3.4.12
GLIBCXX_3.4.13
GLIBC_2.2.5
GLIBC_2.3
GLIBC_2.4
GLIBC_2.3.2