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annotate m4/glob.m4 @ 17480:f40b3156a43e

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selinux-at: omit unnecessary include * lib/selinux-at.c: Don't include dosname.h; not needed, since this source file doesn't use its macros, and subsidiary files that use the macros already include it.
author Paul Eggert <eggert@cs.ucla.edu>
date Fri, 23 Aug 2013 13:53:46 -0700
parents e542fd46ad6f
children 344018b6e5d7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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dba5736dcefe glob: Move AC_LIBOBJ invocations to module description.
Bruno Haible <bruno@clisp.org>
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1 # glob.m4 serial 14
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e542fd46ad6f maint: update all copyright year number ranges
Eric Blake <eblake@redhat.com>
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2 dnl Copyright (C) 2005-2007, 2009-2013 Free Software Foundation, Inc.
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3 dnl This file is free software; the Free Software Foundation
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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 # The glob module assumes you want GNU glob, with glob_pattern_p etc,
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8 # rather than vanilla POSIX glob. This means your code should
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9 # always include <glob.h> for the glob prototypes.
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10
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11 AC_DEFUN([gl_GLOB],
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12 [ GLOB_H=
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13 AC_CHECK_HEADERS([glob.h], [], [GLOB_H=glob.h])
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14
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15 if test -z "$GLOB_H"; then
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16 AC_CACHE_CHECK([for GNU glob interface version 1],
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17 [gl_cv_gnu_glob_interface_version_1],
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18 [ AC_COMPILE_IFELSE([AC_LANG_SOURCE(
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19 [[#include <gnu-versions.h>
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20 char a[_GNU_GLOB_INTERFACE_VERSION == 1 ? 1 : -1];]])],
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21 [gl_cv_gnu_glob_interface_version_1=yes],
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22 [gl_cv_gnu_glob_interface_version_1=no])])
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23
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24 if test "$gl_cv_gnu_glob_interface_version_1" = "no"; then
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25 GLOB_H=glob.h
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26 fi
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27 fi
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28
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29 if test -z "$GLOB_H"; then
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30 AC_CACHE_CHECK([whether glob lists broken symlinks],
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31 [gl_cv_glob_lists_symlinks],
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32 [ if ln -s conf-doesntexist conf$$-globtest 2>/dev/null; then
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33 gl_cv_glob_lists_symlinks=maybe
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34 else
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35 # If we can't make a symlink, then we cannot test this issue. Be
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36 # pessimistic about this.
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37 gl_cv_glob_lists_symlinks=no
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38 fi
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39
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40 if test $gl_cv_glob_lists_symlinks = maybe; then
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41 AC_RUN_IFELSE([
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42 AC_LANG_PROGRAM(
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43 [[#include <stddef.h>
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44 #include <glob.h>]],
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45 [[glob_t found;
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46 if (glob ("conf*-globtest", 0, NULL, &found) == GLOB_NOMATCH) return 1;]])],
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47 [gl_cv_glob_lists_symlinks=yes],
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48 [gl_cv_glob_lists_symlinks=no], [gl_cv_glob_lists_symlinks=no])
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49 fi])
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50
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51 if test $gl_cv_glob_lists_symlinks = no; then
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52 GLOB_H=glob.h
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53 fi
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54 fi
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55
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56 rm -f conf$$-globtest
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57
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58 AC_SUBST([GLOB_H])
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59 AM_CONDITIONAL([GL_GENERATE_GLOB_H], [test -n "$GLOB_H"])
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60 ])
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61
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62 # Prerequisites of lib/glob.*.
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63 AC_DEFUN([gl_PREREQ_GLOB],
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64 [
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65 AC_REQUIRE([gl_CHECK_TYPE_STRUCT_DIRENT_D_TYPE])dnl
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66 AC_REQUIRE([AC_C_RESTRICT])dnl
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67 AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])dnl
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68 AC_CHECK_HEADERS_ONCE([sys/cdefs.h unistd.h])dnl
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69 if test $ac_cv_header_sys_cdefs_h = yes; then
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70 HAVE_SYS_CDEFS_H=1
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71 else
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72 HAVE_SYS_CDEFS_H=0
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73 fi
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74 AC_SUBST([HAVE_SYS_CDEFS_H])
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75 AC_CHECK_FUNCS_ONCE([fstatat getlogin_r getpwnam_r])dnl
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76 ])