PKGDATA(1) ICU 55.1 Manual PKGDATA(1)
pkgdata – package data for use by ICU
pkgdata [ -h, -?, –help ] [ -v, –verbose ] [ -c, –copyright | -C,
–comment comment ] [ -m, –mode mode ] -p, –name name -O, –bldopt
options [ -e, –entrypoint name ] [ -r, –revision version ] [ -F,
–rebuild ] [ -I, –install ] [ -s, –sourcedir source ] [ -d, –dest‐
dir destination ] [ -T, –tempdir directory ] [ file … ]
pkgdata takes a set of data files and packages them for use by ICU or
applications that use ICU. The typical reason to package files using
pkgdata is to make their distribution easier and their loading by ICU
faster and less consuming of limited system resources such as file
descriptors. Packaged data also allow applications to be distributed
with fewer resource files, or even with none at all if they link
against the packaged data directly.
pkgdata supports a few different methods of packaging data that serve
The default packaging mode is common, or archive. In this mode, the
different data files are bundled together as an architecture-dependent
file that can later be memory mapped for use by ICU. Data packaged
using this mode will be looked up under the ICU data directory. Such
packaging is easy to use for applications resource bundles, for exam‐
ple, as long as the application can install the packaged file in the
ICU data directory.
Another packaging mode is the dll, or library, mode, where the data
files are compiled into a shared library. ICU used to be able to dynam‐
ically load these shared libraries, but as of ICU 2.0, such support has
been removed. This mode is still useful for two main purposes: to build
ICU itself, as the ICU data is packaged as a shared library by default;
and to build resource bundles that are linked to the application that
uses them. Such resource bundles can then be placed anywhere where the
system’s dynamic linker will be looking for shared libraries, instead
of being forced to live inside the ICU data directory.
The static packaging mode is similar to the shared library one except
that it produces a static library.
Finally, pkgdata supports a files mode which simply copies the data
files instead of packaging them as a single file or library. This mode
is mainly intended to provide support for building ICU before it is
packaged as separate small packages for distribution with operating
systems such as Debian GNU/Linux for example. Please refer to the pack‐
aging documentation in the ICU source distribution for further informa‐
tion on the use of this mode.
pkgdata builds, packages, installs, or cleans the appropriate data
based on the options given without the need to call GNU make anymore.
-h, -?, –help
Print help about usage and exit.
Display extra informative messages during execution.
Include a copyright notice in the binary data.
-C, –comment comment
Includes the specified comment in the resulting data instead of
the ICU copyright notice.
-m, –mode mode
Set the packaging mode to be used by pkgdata. The different
modes and their meaning are explained in the DESCRIPTION section
above. The valid mode names are common (or archive), dll (or
library), and files.
-O, –bldopt options
Specify options for the builder. The builder is used internally
by pkgdata to generate the correct packaged file. Such options
include, but are not limited to, setting variables used by
make during the build of the packaged file. Note: If icu-con‐
fig is available, then this option is not needed.
-p, –name name
Set the packaged file name to name. This name is also used as
the default entry point name after having been turned into a
valid C identifier.
-e, –entrypoint name
Set the data entry point (used for linking against the data in a
shared library form) to name. The default entry point name is
the name set by the -n, –name option.
-r, –revision version
Enable versioning of the shared library produced in dll, or
library, mode. The version number has the format
major.minor.patchlevel and all parts except for major are
optional. If only major is supplied then the version is assumed
to be major.0 for versioning purposes.
Force the rebuilding of all data and their repackaging.
Install the packaged file (or all the files in the files mode).
If the variable DESTDIR is set it will be used for installation.
-s, –sourcedir source
Set the source directory to source. The default source direc‐
tory is the current directory.
-d, –destdir destination
Set the destination directory to destination. The default des‐
tination directory is the current directory.
-T, –tempdir directory
Set the directory used to generate temporary files to directory.
The default temporary directory is the same as the destination
directory as set by the -d, –destdir option.
Copyright (C) 2000-2009 IBM, Inc. and others.
ICU MANPAGE 6 February 2009 PKGDATA(1)