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dnl @ ../doc/m4.texinfo:2880: Origin of test
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dnl @ Copyright (C) 2006 Free Software Foundation
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dnl @ This file is free software; the Free Software Foundation
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dnl @ gives unlimited permission to copy and/or distribute it
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dnl @ with or without modifications, as long as this notice
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ifdef(`changeword', `', `errprint(` skipping: no changeword support
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`errprint(` skipping: syscmd does not have unix semantics
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changecom(`/*', `*/')dnl
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define(`foo', `bar')dnl
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changeword(`#\([_a-zA-Z0-9]*\)')
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#esyscmd(`echo foo \#foo')