configure: fix typo in xz-utils warning message

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

1.12: update version to 1.12.1+hg

Tagging release 1.12.1

1.12: update version to 1.12.1

debug/ltrace: Fix HOST_OS and ar

HOST_OS really is the target OS. Allow setting it for configure
via an environment variable.
libltrace.a should have an index:
Allow ar to be set as an environment variable, and generate
an index in this lib.

Reported-by: "Guylhem Aznar" <crossgcc@guylhem.net>
Signed-off-by: "Titus von Boxberg" <titus@v9g.de>
(transplanted from f86af11138ea2b2ecd4876d9c6c24f58ba4d68ac)

debug/gdb: correct compilation error when stpcpy is a define

On OSX stpcpy is a define which is not recognized by gdb's configure.
This results in a compilation error.

Reported-by: "Guylhem Aznar" <crossgcc@guylhem.net>
Signed-off-by: "Titus von Boxberg" <titus@v9g.de>
(transplanted from 8cadd5a4c6113f9c7107f1c8d3b29ef310f1ed30)

libc/uClibc: portability fixes to install_headers

Add patch files for uClibc-0.9.30:
extra/scripts/install_headers.sh: find must be called with path.
extra/scripts/unifdef.c: getline is declared in <stdio.h>, use different name.

Reported-by: "Guylhem Aznar" <crossgcc@guylhem.net>
Reported-by: "Titus von Boxberg" <titus@v9g.de>
Signed-off-by: "Titus von Boxberg" <titus@v9g.de>
(transplanted from b745004e1d29921a86b73694d912f1e1277db3e1)

configure: require libtoolize, create wrapper to it

libtoolize must be checked_for and there needs to be a wrapper
that points to GNU libtoolize since that may be installed
as glibtoolize.
This fixes a problem with building Cloog/PPL that was

Reported-by: "Pierrick Brossin" <pierrick@bs-network.net>
Signed-off-by: "Titus von Boxberg" <titus@v9g.de>
(transplanted from c7c9e98d36d8a6a49fcd5f3836d5797bb965eba7)

configure: fix --with-prog=[...]

check_for didn't set variable 'where' when the path to a prog
was passed manually "(cached)".

Signed-off-by: "Titus von Boxberg" <titus@v9g.de>
(transplanted from b1be254591e7b524a0b06a2247a9331ebe0faf1d)

complibs/libelf: use target ranlib

For portability, the right ranlib for the target must be passed to
libelf's configure.

Signed-off-by: "Titus von Boxberg" <titus@v9g.de>
(transplanted from e4a6fefcb0f5ecbcade3ae5edbe609560843aed1)