Q:

how to save time from compiling whole project?

I am implementing some idea on sqlite3. Every time I want to test my codes, I have to compile the whole project. The following is exactly what I do :
sudo make uninstall
sudo make clean
./configure 
sudo make
sudo make install

some of above commands cost long time. What should I do to save time?

A:

Skip other steps and do only
sudo make 
sudo make install

after you changed some source codes.

A:

Also, don't use sudo at all. You should be able to run an instance without actually "installing" it anywhere. This is what developers will normally do, rather than having to keep installing code they're working on into the very system they're using.

