prog.cpp:1:3: error: invalid preprocessing directive #apk
# apk add --no-cache py-pip=9.0.0-r1
^~~
prog.cpp:5:11: error: too many decimal points in number
py2-pip-9.0.1-r1:
^~~~~
prog.cpp:6:26: error: too many decimal points in number
breaks: world[py-pip=9.0.0-r1]
^~~~~
prog.cpp:2:1: error: ‘fetch’ does not name a type
fetch http://dl-cdn.alpinelinux.org/alpine/v3.7/main/x86_64/APKINDEX.tar.gz
^~~~~