I am trying to use synergy and when I run synergyc or synergys it shows the error:

synergys: /usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.14' not found
(required by synergys)

I don't have that version as shown by this command:

strings /usr/lib/libstdc++.so.6 | grep GLIBC

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_2.0

GLIBC_2.3

GLIBC_2.4

GLIBC_2.1

GLIBC_2.3.4

GLIBC_2.1.3

GLIBC_2.3.2

GLIBC_2.2

GLIBCXX_FORCE_NEW

GLIBCXX_DEBUG_MESSAGE_LENGTH

How can I get GLIBCXX3.4.14? I tried apt-get install libstdc++6-4.4-dbg libstdc++6-4.4-dev, but that wont install that version.