[webkit-help] Webkit Build error on Ubuntu 10

[sachin nikam]

I get the following error, when I run the following command
Any ideas on what I am missing?

$ Tools/Scripts/build-webkit --gtk --debug

configure: error: Package requirements (gail-3.0 >= 3.0) were not met:

No package 'gail-3.0' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables GAIL_CFLAGS
and GAIL_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.
Calling autogen.sh failed!