(cmake): configuring process takes time
Summary
Configuring step takes time because a few files are downloded (openvslamTracker vocabulary).
Steps to reproduce
Configure sight with a low internet connection.
Dev environment
- OS: Linux
- CMake version: 3.16.5
- Compiler: gcc8
- Build type: debug
- Commit: dev
What is the current bug behavior?
Files are downloaded each time.
What is the expected correct behavior?
Files are not downloaded if it exists.
Possible fixes
Add the check the file hash in the cmake DOWNLOAD
command.