The following HOWTO introduces the building of UCI (Unified Configuration Interface) on Ubuntu.

1. Some extra package are required:
   
   sudo apt-get install cmake lua5.2
   
   
2. The libubox library is required. It should to compiled from source. To do this, first you have to get the source from git:  
   
   git clone git://nbd.name/luci2/libubox.git libubox
   cd libubox
   
   
3. Please follow the next steps to build libubox:
   
   mkdir build
   cd build
   cmake ..
   make ubox
   
   
4. Install libubox:
   
   sudo mkdir -p /usr/local/include/libubox
   sudo cp ../*.h /usr/local/include/libubox
   sudo cp libubox.so /usr/local/lib
   sudo ldconfig
   
   
5. Get UCI source from git:
   
   git clone git://nbd.name/uci.git uci
   cd uci
   
   
6. Please follow the next steps to build uci:
   
   mkdir build
   cd build
   cmake ..
   make uci cli
   
   
7. Install uci:
   
   sudo mkdir -p /usr/local/include/uci
   sudo cp ../uci.h ../uci_config.h /usr/local/include/uci
   sudo cp ../uci_blob.h ../ucimap.h /usr/local/include/uci
   sudo cp libuci.so /usr/local/lib
   sudo cp uci /usr/local/bin
   sudo ldconfig
   
   
8. Testing:
   
   mkdir test
   cat > test/test << EOF
   > config 'test' 'abc'
   > option 'test_var' 'value'
   > EOF
   
   uci -c `pwd`/test show test
   Output:
   test.abc=test
   test.abc.test_var=value
   
   uci -c `pwd`/test set test.abc.test_var=foobar
   uci -c `pwd`/test commit test
   
   uci -c `pwd`/test show test
   Output:
   test.abc=test
   test.abc.test_var=foobar