gcc 6.3 + ssp flag breaks google-chrome (and other c++ apps)

[edward2a]

Hi everyone,

I did a repo-sync and world update to find out gcc-6.3 rebuilding with ssp flag and I thought 'great, some new security feature enabled by default', but it seems not everything is happy.
After the rebuild of gcc, google-chrome (binary) stopped working with the following error:

~ $ google-chrome-stable
/usr/bin/google-chrome-stable: relocation error: /usr/bin/google-chrome-stable: symbol _ZSt15__once_callable, version GLIBCXX_3.4.11 not defined in file libstdc++.so.6 with link time reference


So after some google'ing (not much found on the subject) and reviewing I disabled ssp for gcc and rebuilt it, then chrome-stable (58.0.3029.110) started working.
Same problem with google-chrome-beta. I guess as these are binary they are compiled with a different configuration of gcc libraries hence the incompatibility.

Unfortunately this happened on my 'daily horse' pc just before returning to work from holidays, so no much time to actually review the subject.
If anyone has any pointers on this issue, info is most appreciated.
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