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* build-aux/gendocs.sh (version): * doc/gendocs_template: * doc/gendocs_template_min: * doc/gnulib.texi: * lib/version-etc.c (COPYRIGHT_YEAR): Update copyright dates by hand in templates and the like. * all files: Run 'make update-copyright'.
27 lines
1.2 KiB
Plaintext
27 lines
1.2 KiB
Plaintext
@node error and progname
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@section error and progname
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@findex error
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@findex progname
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@vindex program_name
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@c Copyright (C) 2007, 2009-2017 Free Software Foundation, Inc.
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@c Permission is granted to copy, distribute and/or modify this document
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@c under the terms of the GNU Free Documentation License, Version 1.3 or
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@c any later version published by the Free Software Foundation; with no
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@c Invariant Sections, no Front-Cover Texts, and no Back-Cover
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@c Texts. A copy of the license is included in the ``GNU Free
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@c Documentation License'' file as part of this distribution.
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The @code{error} function uses the @code{program_name} variable, but
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does not depend on the @code{progname} module. Why? Because
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@code{error} is released under the LGPL, whereas @code{progname} is
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GPL. RMS does not want additional baggage accompanying the
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@code{error} module, so an LGPL user must provide their own
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replacement @code{program_name}, and a GPL user should manually
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specify using the @code{progname} module.
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Additionally, using the @code{progname} module is not something that
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can be done implicitly. It requires that every @code{main} function
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be modified to set @code{program_name} as one of its first actions.
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