[Ns-developers] Tip: WAFCACHE

[Gustavo Carneiro]

Probably some of you have already tried this feature.  Personally I knew it
was there, but it hadn't dawned on me yet how useful it is with so little
effort to setup.

To setup just:

1. mkdir /tmp/wafcache
2. echo "export WAFCACHE=/tmp/wafcache/" >> ~/.bashrc

Then when you start a new shell (so WAFCACHE) is defined, waf will save
cached compilation files, and use them whenever it can:


Entering directory `/home/gjc/projects/ns/ns-3-dev/build'
restored from cache debug/src/common/tag-list_1.o
restored from cache debug/src/devices/wifi/mac-rx-middle_1.o
restored from cache debug/src/devices/wifi/wifi-remote-station-manager_1.o
restored from cache debug/src/devices/wifi/adhoc-wifi-mac_1.o
restored from cache debug/src/devices/wifi/nqap-wifi-mac_1.o
restored from cache debug/src/devices/wifi/nqsta-wifi-mac_1.o
restored from cache debug/libns3.so
[...]

This is rather useful for people working with multiple ns-3 branches...

Have fun.

-- 
Gustavo J. A. M. Carneiro
INESC Porto, Telecommunications and Multimedia Unit
"The universe is always one step beyond logic." -- Frank Herbert