New answers tagged g++
No. Because you are running 12.04 and not 14.04, where 14 is trusty and 12 is precise. Since there is two different OS versions, you would need Trusty to get the one you want. To be precise, 12 and 14 use two different Repos, both labeled Universe. I would not recommend installing newer software not designed for older OS versions.
A similar phenomenon had occurred and was solved. Built and installed gcc-4.9.2 Built another software. No problem. Built and installed binutils-2.25 gcc failed with ..../bin/as: unrecognized option: `-xarch=generic' Renamed /usr/local/i386-pc-solaris2.11/ with different name, which was installed by binutils including bin/as gcc succeeded This is my ...
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