Recently almost every macOS image update on Travis breaks our builds:
This PR:
- fixes the error caused by the recent update from 10.14.4 (18E226) to 10.14.6 (18G3020) on March 25
- leverages Homebrew addon to install packages
Homebrew is not told to install automake
and pkg-config
packages, as the docs states that they are pre-installed:
- automake 1.16.1
- pkg-config 0.29.2