experimental/cmake-improvement

set CMAKE_LIBRARY_PATH, CMAKE_INCLUDE_PATH based on NIX_CFLAGS_COMPILE and
NIX_LDFLAGS so that cmake's find_library like functions find all the libraries
gcc knows about thanks to the gcc wrapper

This is particular useful with myEnvFun which then also sets those CMAKE_* env
variables.`

Because setup.sh has to change this causes many rebuilds - thus it should be
included in a stdenv-update like branch

Also cmake builds in parallel perfectly fine

update cmake to latest minor number, I didn't change the patches,
just reapplied them manually recordin a new patch
groff: explicitly disable X11 support in configure to avoid impure builds

Without this flag, the configure script will find /usr/X11 on host system and
assume that it can build with X11 support.
Merge branch 'master' into stdenv-updates.

There were conflicts in pkgs/development/interpreters/ruby/ruby-19.nix,
which I resolved to the best of my knowledge. I'd appreciate if some of
the ruby gurus could have a look at the outcome of my merge, though.
Merge pull request #567 from MarcWeber/submit/cmake-improvement

experimental/cmake-improvement
Merge branch 'master' into stdenv-updates
add "quilt" (patch manager)
kernel/generic: pass through prePatch as well
new package: "linux-lts-3.0"

Long term support kernels:
http://ltsi.linuxfoundation.org/what-is-ltsi
new package: "linux-lts-3.4"

Long term support kernels:
http://ltsi.linuxfoundation.org/blog/2013-01-22/ltsi-v3.4-released
default kernel: upgrade to 3.4 lts
linux headers 3.4 lts - needs refactoring
switch to 3.4lts headers
glibc: make minimum supported kernel version configurable

The minimum we support is 3.2.43 which is nixos' default kernel in
master. On every stdenv-updates merge, we will move this number up to
the previous latest default kernel.

for people who want older kernels, a "compat" setting (headers +
glibc) will soon appear
Merge branch 'master' into stdenv-updates