MAKECONV(1)                     ICU 69.1 Manual                    MAKECONV(1)

NAME
       makeconv - compile a converter table

SYNOPSIS
       makeconv [ -h, -?, --help ] [ -c, --copyright ] [ -v, --verbose ] [ -d,
       --destdir destination ] convertertable ...

DESCRIPTION
       makeconv converts the ICU converter table convertertable into a binary
       file. The binary file has the same base name as convertertable but has
       a .cnv extension (instead of the typical .ucm extension of the
       convertertable file).  This binary file can then be read directly by
       ICU, or used by pkgdata(1) for incorporation into a larger archive or
       library.

       The convertertable must be in the ICU ucm (Unicode Codepage Mapping)
       format in order to be understood by makeconv.  The ICU ucm format is
       similar to the IBM NLTC upmap/tpmap/rpmap files.  Comments in the
       convertertable are handled as follows. If a comment (starting with a
       `#' sign) that is after some text does contain the fallback indicator
       `|' then only the text starting with the `#' sign, and ending before
       the `|' sign, is ignored.  Otherwise, or if the comment is the first
       thing on the line, the comment runs up to the end of the line. This
       special handling of comments is to accommodate the practice of putting
       fallback information in comments in the strict IBM NLTC ucmap format.

       Note that new converters will be automatically found by ICU after their
       installation in ICU's data directory. They do not need to be listed in
       the convrtrs.txt(5) converters aliases file in order to be available to
       applications using ICU.  They do need to be listed there if one wants
       to give them aliases, or tags, though.

OPTIONS
       -h, -?, --help
              Print help about usage and exit.

       -c, --copyright
              Include a copyright notice in the binary data.

       -v, --verbose
              Display extra informative messages during execution.

       -d, --destdir destination
              Set the destination directory to destination.  The default
              destination directory is specified by the environment variable
              ICU_DATA.

CAVEATS
       If an existing converter table is changed and recompiled using
       makeconv, the resulting binary file must be packaged in the same way
       that it was packaged initially. For example, if converters were grouped
       together in an archive or a library with pkgdata(1), then the archive
       or library must be rebuilt with the new binary file.  A standalone
       binary converter file will not take precedence over a packaged one.

ENVIRONMENT
       ICU_DATA  Specifies the directory containing ICU data. Defaults to
                 ${prefix}/share/icu/69.1/.  Some tools in ICU depend on the
                 presence of the trailing slash. It is thus important to make
                 sure that it is present if ICU_DATA is set.

VERSION
       69.1

COPYRIGHT
       Copyright (C) 2000 IBM, Inc. and others.

SEE ALSO
       convrtrs.txt(5)
       pkgdata(1)

ICU MANPAGE                      16 April 2002                     MAKECONV(1)