dont create dangling symlink build/Release/libzim.so

[milahu]

this line

node-libzim/bundle-libzim.js

Line 31 in 264affa

exec("ln -sf build/Release/libzim.so.9 build/Release/libzim.so"); // convenience only, not required

creates a dangling symlink build/Release/libzim.so
if the file build/Release/libzim.so.9 does not exist

this happens when building with system libzim

node-libzim/binding.gyp

Line 5 in 264affa

"libzim_local": "false", # change this to use system-installed libzim