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* libcompat - system compatibility library
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* Copyright © 1995 Ian Jackson <ian@chiark.greenend.org.uk>
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2,
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* or (at your option) any later version.
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* This is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public
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* License along with dpkg; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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unsetenv(const char *p)
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q = malloc(strlen(p) + 3);