scripts, cc/gcc: do not fail on existing symlinks or build.log

If the user builds a toolchain over an existing one, so, without removing
CT_PREFIX_DIR, the build fails as the symlinks already exist, as does the
build.log.

This can also happen (for build.log) if the user first ran in download-
or extract-only.

Patch (with no SoB) originally from:
Phil Wilshire <phil.wilshire@overturenetworks.com>

Modified by me as it did not apply cleanly.

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

scripts/xldd: fix missing arg to one printf

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

scripts/xldd: don't pass random format to printf

Although proabaly inoffensive in our case, do not pass un-checked
formats to printf.

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

scripts/xldd: print end of current action

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

scripts/xldd: fix typo

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

cc/gcc: do not build libgomp or libmudflap in the core steps

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

scripts/internals: do not remove lib{32,64}/ symlinks after build

During the build, we create lib{32,64}/ symlinks out of the sysroot.
In some cases (eg. mingw32 target), these symlinks are still required
when running the toolchain. For other combinations, the symlinks are
without incidence, so they can be safely kept after the build.

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

scripts: on startup, also remove the buildtools dir

In case there's one lingering around (whether the previous build was
successful, or failed), we have to remove the buildtools directory
as well as the toochain build dir.

This should also fix the case where out makeinfo wrapper calls
itself recursively.

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

libc/glibc: fix passing args with spaces when calling backend

Spaces in arguments to the glibc backend were not handled.

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

cc/gcc: fix passing args with spaces when calling core gcc

Spaces in arguments to the core gcc backend were not handled.

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

configure: add check for svn

svn is needed to downlod eglibc, so we require it.

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

libc/newlib: add latest version

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

scripts: update config.{guess,sub}

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

config: move multi-line shell commands from Makefile to script

Maintaining thos multi-line shell commands in a Makefile rule is
a real PITA.

Move the two affected rules (build_gen_choice_in and build_gen_menu_in
to a shell script.

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

libc/glibc: add 2.14

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

configure: do not require cvs

cvs is used to get newlib directly from its repository. Missing cvs
will only allow getting newlib from the released tarballs.

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

configure: portability fixes - take 2

It is useful to sometime run on a strictly POSIX-compliant
shell... :-/

And it is sometime interesting to refresh Q-patches before
finishing the series... :-(

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

configure: portability fixes

It is useful to sometime run on a strictly POSIX-compliant shell... :-/

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

cc/gcc: fix non-MIPS builds

The new MIPS-specific options are not valid for other targets.
Also, move the arch-specific setting lower in the extra_config setting.

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

docs/C : libncurses is not needed anymore

macports libncurses was required only on SL 10.6.3

docs/C : use new URL in hg tutorial

ct-ng has moved, update documentation

config/config.mk: call sed in the Right Way

calling sed as sed destroys portability.
call sed as $(sed) in makefiles before the build process is started.

configure: do not test for static libs if static link is impossible

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

configure: pass the allowed lib extensions to check_for()

Rather than building all possible library names in the caller,
lets just do it once in check_for.

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

configure: disable static linking on Darwin

Static liunking is not supported on Darwin, so hide the corresponding
options when the build machine is Darwin.

Reported-by: Andrea Franceschini <therealmorpheu5@gmail.com>
Reported-by: Bryan Hundven <bryanhundven@gmail.com>
Reported-by: "Titus von Boxberg" <titus@v9g.de>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

configure: check host system

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

configure: indent error/warning message

Indent the error/warning message so that it is explicit that
the second line is giving details for the first general hint.

Reported-by: Titus von Boxberg <titus@v9g.de>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

cc/gcc: add MIPS spercific configure options

Add the following MIPS specific options when configuring gcc:
--with(out)-llsc
--with(out)-synci
--with(out)-mips-plt
--with-divide=type

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

cc/gcc: add option for linker hash style

Add an option to specify the hash type that gcc will ask the linker to use.
It is a provision for the upcoming 4.7, as no version currently supports it.

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

cc/gcc: add build-id option

Add an option to configure gcc with --enable-linker-build-id.

Reported-by: Bryan Hundven <bryanhundven@gmail.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>