autogen.sh fails on MacOS 10.13.3

[Tor Lillqvist]

gcc 7.3 was installed via homebrew and

> cd /usr/local/Cellar/gcc/7.3.0_1/bin && ln -s gcc-7 gcc && ln -s g++-7 g++
>

Don't even try to use any homebrew stuff. Use the Clang that comes with
latest Xcode. That is the only compiler we support on macOS.

--tml
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/libreoffice/attachments/20180329/cda413d7/attachment.html>