tree 5686d47ceca3428ceefb98158acdbcaaa98f55ab
parent 394977c2f2b01347ddff97ea1a6da19706c8672f
author Davide Pesavento <davidepesa@gmail.com> 1587706741 -0400
committer Davide Pesavento <davidepesa@gmail.com> 1588032176 -0400

build: require clang >= 4.0, Xcode >= 9.0

Also, recommend using gcc 7.4.0 or later, and silence
an ABI-related diagnostic message from gcc on armv7

Refs: #5087, #5106
Change-Id: I4d9841bea9df19cbb9ba3b0865949b1d66e6ec3e