Mercurial > hg > octave-jordi > gnulib-hg
view m4/group-member.m4 @ 15426:60c6b6da0198
ffs: avoid undefined behavior
* lib/ffs.c (ffs): Provide fallback for non-32-bit int.
* tests/test-ffs.c (naive, main): Avoid signed shifts.
Reported by Bruno Haible.
Signed-off-by: Eric Blake <eblake@redhat.com>
author | Eric Blake <eblake@redhat.com> |
---|---|
date | Fri, 15 Jul 2011 14:26:43 -0600 |
parents | 7a1b4cd6d351 |
children | 8250f2777afc |
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# serial 14 # Copyright (C) 1999-2001, 2003-2007, 2009-2011 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. dnl Written by Jim Meyering AC_DEFUN([gl_FUNC_GROUP_MEMBER], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) dnl Persuade glibc <unistd.h> to declare group_member(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) dnl Do this replacement check manually because I want the hyphen dnl (not the underscore) in the filename. AC_CHECK_FUNC([group_member], , [ HAVE_GROUP_MEMBER=0 ]) ]) # Prerequisites of lib/group-member.c. AC_DEFUN([gl_PREREQ_GROUP_MEMBER], [ AC_REQUIRE([AC_FUNC_GETGROUPS]) ])