Pass overrides for perl510Packages too

Signed-off-by: Shea Levy <shea@shealevy.com>
fixed typo from previous commit
pwgen, wgetpaste: set platforms
gcc47: fixing the arm eabi hf build

Picking an upstream gcc patch.
ncmpcpp: set platforms
aircrack-ng: bump
libtirpc: update to version 0.2.3
prettytable: Update to 0.7.1
pthread-win32: use `mingw_headers3', for consistency with `gccCrossStageFinal'
pthread-win32: don't propagate `mingw_headers'
libiconv: disable stripping when cross-compiling
Making omxplayer build with gcc47
Adding omxplayer, for the raspberrypi.
gcc47: Making the arm patch only for arm.

I don't know how, but it seems to break mips (noticed by ludo):
http://hydra.nixos.org/build/4530024
glibc: hurd: Use the old `rpcgen-path.patch'.
haskell-hackage-db: update to version 1.5