scripts/functions: extract: portable call for old and defective tars

Instead of using -J, --lzma, --use-compress-program or the like
use <compressor> -dc <file> | tar -f -

Signed-off-by: Titus von Boxberg <titus@v9g.de>
(transplanted from 49af7802dcd538ec3cb64337030b03ac2c6344d2)

cc/gcc: Apply CT_CC_GCC_DISABLE_PCH to do_cc_core.

Otherwise, users have to input --disable-libstdcxx-pch option
when building bare-metal CANADIAN C++ compiler.

Reviewed-by: Michael Hope
Signed-off-by: Zhenqiang Chen <zhenqiang.chen@linaro.org>
(transplanted from e3e1c9d45bddfbfb433ee9d583faf42fa31f50c0)

configure: fix kconfig option names

In the process of converting to autoconf, the kconfig option
were not properly translated.

Fix that.

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

configure: also detect plain grep

We need just 'grep', and we need to be able to call it with 'grep -E'.
Check for 'grep', and bailout if egrep != grep -E

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

scripts: fix tools override

The tools found by the new autostuff configure can contain arguments,
for example: grep -E

This needs separating the paths set for the Makfile from the paths
set for the scripts.

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

cc/gcc: update Linaro GCC revisions to 2012.01

Update Linaro GCC with the latest available revisions.

Signed-off-by: "Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>

kconfig: add missing files

The real sources for a few files are the lex/yacc/gperf
files, and the C files are only generated...

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

kconfig: install compiled frontends

The kconfig frontends are currently instaleld as source files. This is
a remnant of the early times, when I wanted a single installation of
crosstool-NG to be shared across multiple machines, potentially of
different architectures.

This does not really make sense, and it's been a long time since it
was las tpossible in practice.

So, just build the kconfig frontends at make-time, and install them
as we do for all other crosstool-NG dependent files.

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

configure: use autoconf to generate configure

Create configure.ac, an autoconf script to generate ./configure
This will be needed by a subsequent patch to properly handle
--build and --host, and more tests, when the kconfig stuff will
be installed pre-built.

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

kernel/linux: update versions

A few newer versions, second shot in a row...

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