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annotate aclocal.m4 @ 208:e0c0827131d1 ecos

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Merge from eCos master repository on 2002-05-20-20:11:54-BST
author jlarmour
date Mon, 20 May 2002 22:19:26 +0000
parents
children f58bc1b2c2bc
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208
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1 dnl aclocal.m4 generated automatically by aclocal 1.4
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2
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3 dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc.
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4 dnl This file is free software; the Free Software Foundation
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5 dnl gives unlimited permission to copy and/or distribute it,
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6 dnl with or without modifications, as long as this notice is preserved.
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7
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8 dnl This program is distributed in the hope that it will be useful,
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9 dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
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10 dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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11 dnl PARTICULAR PURPOSE.
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12
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13 # Do all the work for Automake. This macro actually does too much --
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14 # some checks are only needed if your package does certain things.
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15 # But this isn't really a big deal.
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16
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17 # serial 1
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18
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19 dnl Usage:
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20 dnl AM_INIT_AUTOMAKE(package,version, [no-define])
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21
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22 AC_DEFUN(AM_INIT_AUTOMAKE,
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23 [AC_REQUIRE([AC_PROG_INSTALL])
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24 PACKAGE=[$1]
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25 AC_SUBST(PACKAGE)
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26 VERSION=[$2]
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27 AC_SUBST(VERSION)
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28 dnl test to see if srcdir already configured
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29 if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
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30 AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
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31 fi
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32 ifelse([$3],,
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33 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
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34 AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))
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35 AC_REQUIRE([AM_SANITY_CHECK])
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36 AC_REQUIRE([AC_ARG_PROGRAM])
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37 dnl FIXME This is truly gross.
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38 missing_dir=`cd $ac_aux_dir && pwd`
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39 AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
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40 AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
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41 AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
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42 AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
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43 AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
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44 AC_REQUIRE([AC_PROG_MAKE_SET])])
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45
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46 #
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47 # Check to make sure that the build environment is sane.
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48 #
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49
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50 AC_DEFUN(AM_SANITY_CHECK,
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51 [AC_MSG_CHECKING([whether build environment is sane])
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52 # Just in case
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53 sleep 1
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54 echo timestamp > conftestfile
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55 # Do `set' in a subshell so we don't clobber the current shell's
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56 # arguments. Must try -L first in case configure is actually a
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57 # symlink; some systems play weird games with the mod time of symlinks
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58 # (eg FreeBSD returns the mod time of the symlink's containing
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59 # directory).
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60 if (
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61 set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
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62 if test "[$]*" = "X"; then
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63 # -L didn't work.
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64 set X `ls -t $srcdir/configure conftestfile`
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65 fi
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66 if test "[$]*" != "X $srcdir/configure conftestfile" \
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67 && test "[$]*" != "X conftestfile $srcdir/configure"; then
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68
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69 # If neither matched, then we have a broken ls. This can happen
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70 # if, for instance, CONFIG_SHELL is bash and it inherits a
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71 # broken ls alias from the environment. This has actually
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72 # happened. Such a system could not be considered "sane".
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73 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
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74 alias in your environment])
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75 fi
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76
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77 test "[$]2" = conftestfile
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78 )
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79 then
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80 # Ok.
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81 :
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82 else
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83 AC_MSG_ERROR([newly created file is older than distributed files!
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84 Check your system clock])
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85 fi
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86 rm -f conftest*
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87 AC_MSG_RESULT(yes)])
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88
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89 dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
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90 dnl The program must properly implement --version.
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91 AC_DEFUN(AM_MISSING_PROG,
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92 [AC_MSG_CHECKING(for working $2)
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93 # Run test in a subshell; some versions of sh will print an error if
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94 # an executable is not found, even if stderr is redirected.
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95 # Redirect stdin to placate older versions of autoconf. Sigh.
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96 if ($2 --version) < /dev/null > /dev/null 2>&1; then
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97 $1=$2
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98 AC_MSG_RESULT(found)
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99 else
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100 $1="$3/missing $2"
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101 AC_MSG_RESULT(missing)
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102 fi
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103 AC_SUBST($1)])
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104
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105 # Add --enable-maintainer-mode option to configure.
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106 # From Jim Meyering
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107
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108 # serial 1
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109
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110 AC_DEFUN(AM_MAINTAINER_MODE,
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111 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
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112 dnl maintainer-mode is disabled by default
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113 AC_ARG_ENABLE(maintainer-mode,
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114 [ --enable-maintainer-mode enable make rules and dependencies not useful
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115 (and sometimes confusing) to the casual installer],
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116 USE_MAINTAINER_MODE=$enableval,
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117 USE_MAINTAINER_MODE=no)
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118 AC_MSG_RESULT($USE_MAINTAINER_MODE)
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119 AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes)
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120 MAINT=$MAINTAINER_MODE_TRUE
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121 AC_SUBST(MAINT)dnl
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122 ]
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123 )
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124
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125 # Define a conditional.
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126
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127 AC_DEFUN(AM_CONDITIONAL,
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128 [AC_SUBST($1_TRUE)
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129 AC_SUBST($1_FALSE)
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130 if $2; then
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131 $1_TRUE=
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132 $1_FALSE='#'
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133 else
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134 $1_TRUE='#'
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135 $1_FALSE=
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136 fi])
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137