annotate m4/ssize_t.m4 @ 17729:874a5cc03904

test-userspec: don't look up numeric user names * tests/test-userspec.c: I found a system for which getpwnam("0") returned a pointer to a non-root user's entry, and that made the test fail. (T): Prefix each numeric input with "+", to inhibit lookup.
author Jim Meyering <meyering@fb.com>
date Fri, 18 Jul 2014 14:16:44 -0700
parents 344018b6e5d7
children ab58d4870664
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1 # ssize_t.m4 serial 5 (gettext-0.18.2)
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2 dnl Copyright (C) 2001-2003, 2006, 2010-2014 Free Software Foundation, Inc.
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3 dnl This file is free software; the Free Software Foundation
adff74659d81 Use an all-permissive copyright notice, recommended by RMS.
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4 dnl gives unlimited permission to copy and/or distribute it,
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5 dnl with or without modifications, as long as this notice is preserved.
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6
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7 dnl From Bruno Haible.
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8 dnl Test whether ssize_t is defined.
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9
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10 AC_DEFUN([gt_TYPE_SSIZE_T],
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11 [
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12 AC_CACHE_CHECK([for ssize_t], [gt_cv_ssize_t],
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13 [AC_COMPILE_IFELSE(
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14 [AC_LANG_PROGRAM(
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15 [[#include <sys/types.h>]],
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16 [[int x = sizeof (ssize_t *) + sizeof (ssize_t);
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17 return !x;]])],
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18 [gt_cv_ssize_t=yes], [gt_cv_ssize_t=no])])
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19 if test $gt_cv_ssize_t = no; then
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20 AC_DEFINE([ssize_t], [int],
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21 [Define as a signed type of the same size as size_t.])
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22 fi
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23 ])