fix for missing package name argument for 'pkg-config' call during fetching custom variables

Signed-off-by: young <young@yang.(none)>
fix for missing package name argument for 'pkg-config' call during fetching custom variables

Signed-off-by: Thomas Nagy <tnagy2pow10@gmail.com>
Merge branch 'master' of https://code.google.com/p/waf
Issue 1362, docs
Issue 1366, swig defines
Issue 1367, python 2.4 and boost.py
Python 3.4 now provides non-inheritable file handles by default
syms.py: Fix dep_nodes manipulation

Fixed a line in syms.py to append to the dep_nodes list instead of
forcibly overwriting it.

Signed-off-by: Thomas Nagy <tnagy2pow10@gmail.com>