【amazon linux】g++: error: unrecognized command line option ‘-Wimplicit-fallthrough=0’ エラー

amazon linux　で　railsプロジェクトをdeployしてたらハマったエラー

g++: error: unrecognized command line option ‘-Wimplicit-fallthrough=0’

g++に問題あるけどなに？って感じ

単純に g++のversionが低い

[root@hoge ~]# g++ --version
g++ (GCC) 4.8.5 20150623 (Red Hat 4.8.5-28)
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

なので最新のを取ってくる

yum list \*gcc\*

して今回だと

yum install gcc72-c++.x86_64

これで新しく

[root@hogehoge~]# g++ --version
g++ (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2)
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.