Quartus II keeps crashing on Ubuntu 14.10

I received an update from Altera support:

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The Curl library shipped with Quartus II is not thread-safe and this causes the error you have seen.

You can work around this problem by creating an environment variable to set CURLOPT_NOSIGNAL to 1 with the following command:

For csh-style shells:

setenv CURLOPT_NOSIGNAL 1

For sh-style shells

export CURLOPT_NOSIGNAL=1

If you could let me know if this resolves your problem then I can confirm this solution with the factory.

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The suggested workaround did not work for me.