image build and composition scripts for Flatcar Container Linux

flatcarflatcar-linuxhacktoberfestsdk

Dongsu Park 9375f927fc profiles: disable cxx for net-libs/nghttp2 ... When building `net-libs/nghttp2` needed by curl 7.74, build fails when checking for prerequisites of boost libs. ``` configure:20402: checking whether the Boost::ASIO library is available configure:20433: x86_64-cros-linux-gnu-g++ -std=c++14 -c -O2 -pipe -mtune=generic -g conftest.cpp >&5 configure:20433: $? = 0 configure:20447: result: yes configure:20540: error: Could not find a version of the library! ``` To avoid such issues, we should disable the `cxx` USE flag for `net-libs/nghttp2`.		2021-01-18 18:23:37 +01:00
sdk_container/src/third_party/coreos-overlay	profiles: disable cxx for net-libs/nghttp2	2021-01-18 18:23:37 +01:00