ack_build.sh - for ACK library building
gnu_build.sh - for GNU library building

ack_build.sh obj     - create objdirs for gnu libraries
ack_build.sh depend  - find dependencies of ack libraries
ack_build.sh all     - compile ack libraries
ack_build.sh install - compile and install ack libraries
ack_build.sh clean   - clean for ack libraries

gnu_build.sh obj     - create objdirs for gnu libraries
gnu_build.sh depend  - find dependencies of gnu libraries
gnu_build.sh all     - compile gnu libraries
gnu_build.sh install - compile and install gnu libraries
gnu_build.sh clean   - clean for gnu libraries