cc/gcc: remove 'sub-level' version form symbols

Now we use defconfig files to store the samples, we have to be a bit more
conservatives in the symbols names, so as to avoid gigantic version bumps
when updating sub-level versions from a package.

For example (using fictitious versions):
- in crosstool-NG 1.17.0, we choose:
- latest gcc is gcc-linaro-4.7-2012.10, which is the default for the
choice in the menuconfig
- gcc-linaro-4.6-2012.10 is selected
- so, sample has an explicit symbol for the selected gcc version, as it
is not the default
- we update to crosstool-NG 1.18.0:
- latest gcc version is gcc-linaro-4.7-2013.01
- gcc-linaro-46 has been updated to gcc-linaro-4.6-2013.01
- as the sample now has no *valid* symbol to set the gcc version, the
default is used, while we would have expected to still use the 4.6
release from linaro, not the 4.7

Get rid of sub-level (ie. the third digit sequence in versions) from the
symbols for linaro versions.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

This is the README for crosstool-NG

Crosstool-NG follows the autoconf dance. So, to get you

kick-started, just run:

    ./configure --help

If you are using a development snapshot, you'll have to

create the configure script, first. Just run:

    ./bootstrap

You will find the documentation in the directory 'docs'.

Here is a quick overview of what you'll find there:

  0 - Table of content

  1 - Introduction

  2 - Installing crosstool-NG

  3 - Configuring a toolchain

  4 - Building the toolchain

  5 - Using the toolchain

  6 - Toolchain types

  7 - Contributing

  8 - Internals

  A - Credits

  B - Known issues

  C - Misc. tutorials

You can also point your browser at:

  http://crosstool-ng.org/

Aloha!