toolchain: update to gcc-7.3.0 and enable retpolines on x86_64 and i586

Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>
This commit is contained in:
Arne Fitzenreiter
2018-01-26 20:48:08 +01:00
parent 33e3a1bd84
commit 7520b95a8b
18 changed files with 4118 additions and 7542 deletions

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