Look for the CAIRO_VERSION variable in the configure.in file at the top of the source tree. For mozilla-central, that's Cairo 1.6 (http://mxr.mozilla.org/mozilla-central/source/configure.in#122).
If you have building issues, I suggest you comment in the mozilla.dev.builds newsgroup (http://groups.google.com/group/mozilla.dev.builds/topics for the Web interface). You should also provide the complete error message there.
Look for the CAIRO_VERSION variable in the configure.in file at the top of the source tree. For mozilla-central, that's Cairo 1.6 (http:// mxr.mozilla. org/mozilla- central/ source/ configure. in#122).
If you have building issues, I suggest you comment in the mozilla.dev.builds newsgroup (http:// groups. google. com/group/ mozilla. dev.builds/ topics for the Web interface). You should also provide the complete error message there.