Startig with glibc 2.34, the gconv modules description has been split in
two:
- a common definition in the old location, /usr/lib/gconv/gconv-modules
- specific definitions in a subdirectory, /usr/lib/gconv/gconv-modules.d/
This is done so as to simplify the handling of glibc gconv modules, and
eventually to segregate those outside of glibc, and so that third-parties
may also provide their own gconv converters and their definitions.
And starting with that same glibc version, most of the gconv modules
definitions are moved to an extra configuration file in that
sub-directory.
It is thus no longer possible to use special code pages, like cp850,
which are very useful to access FAT-formatted devices.
Add support for this new gconv layout, while keeping support for older
glibc versions. Note that the modules themselves are not moved or
renamed, just the definition files have changed.
Instead of passing the one old gonv modules definitions file on stdin,
we pass the base directory to that file, and move into the script the
responsibility to find all the gconv definition files.
Signed-off-by: Yann E. MORIN <yann.morin@orange.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Romain Naour <romain.naour@gmail.com>
Cc: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Cc: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
When only a subset of the glibc gconv modules are installed, we need to
generate a trimmed-down list of available modules. We currently use gawk
for that.
However, we are not using any GNU extension in that awk script, and it
happens to work as expected when using mawk (which has no GNU
extension).
Commit 11c1076db9 (toolchain: add option to copy the gconv libraries)
did not explain why it used gawk explicitly, and given the age for that
commit, we doubt we'd be able to have the involved participants recall
anything from that period...
Besides, gawk is not a requirement for Buildroot.
Switch over to using plain awk.
Signed-off-by: Yann E. MORIN <yann.morin@orange.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Not all systems have /bin/bash (e.g. NixOS[1] doesn't). Buildroot
already uses /usr/bin/env shebangs for other interpreters (perl,
python), so why not bash?
This changes only the shebangs used by Buildroot itself; stuff installed
to the target system is left unchanged.
With this applied I can run Buildroot unmodified on NixOS.
[1]: http://nixos.org/
Signed-off-by: Bjørn Forsman <bjorn.forsman@gmail.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
The gconv libraries are used to translate between different character sets
('charsets', even 'csets' sometimes). Some packages need them to present
text to the user (eg. XBMC Gotham).
In (e)glibc they are implemented by the internal implemenation of iconv,
called gconv, and are provided as dlopen-able libraries.
Note that some gconv modules need extra libraries (shared by more than
one gconv module), so we must, when adding a subset of modules, scan the
installed modules in search of the missing libraries.
[Thomas: add general explanation in expunge-gconv-modules and fix
coding style.]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Cc: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Cc: Eric Limpens <limpens@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
