1 | # Process this file with autoconf to produce a configure script.
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2 | #
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3 | # Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
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4 | # 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
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5 | # This file is part of GNU Make.
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6 | #
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7 | # GNU Make is free software; you can redistribute it and/or modify it under
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8 | # the terms of the GNU General Public License as published by the Free Software
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9 | # Foundation; either version 3 of the License, or (at your option) any later
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10 | # version.
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11 | #
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12 | # GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
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13 | # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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14 | # FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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15 | # details.
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16 | #
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17 | # You should have received a copy of the GNU General Public License along with
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18 | # this program. If not, see <http://www.gnu.org/licenses/>.
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19 |
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20 | AC_INIT([GNU make],[3.82],[bug-make@gnu.org])
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21 |
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22 | AC_PREREQ(2.59)
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23 | AC_REVISION([[$Id: configure.in,v 1.156 2010/07/28 05:39:50 psmith Exp $]])
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24 |
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25 | # Autoconf setup
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26 | AC_CONFIG_AUX_DIR(config)
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27 | AC_CONFIG_SRCDIR(vpath.c)
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28 | AC_CONFIG_HEADERS(config.h)
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29 |
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30 | # Automake setup
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31 | AM_INIT_AUTOMAKE([1.9])
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32 |
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33 | # Checks for programs.
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34 | AC_PROG_CC
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35 | AC_PROG_INSTALL
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36 | AC_PROG_RANLIB
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37 | AC_PROG_CPP
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38 | AC_CHECK_PROG(AR, ar, ar, ar)
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39 | # Perl is needed for the test suite (only)
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40 | AC_CHECK_PROG(PERL, perl, perl, perl)
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41 |
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42 | # Specialized system macros
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43 | AC_CANONICAL_HOST
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44 | AC_AIX
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45 | AC_ISC_POSIX
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46 | AC_MINIX
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47 |
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48 | # Enable gettext, in "external" mode.
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49 |
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50 | AM_GNU_GETTEXT_VERSION(0.14.1)
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51 | AM_GNU_GETTEXT([external])
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52 |
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53 | # This test must come as early as possible after the compiler configuration
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54 | # tests, because the choice of the file model can (in principle) affect
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55 | # whether functions and headers are available, whether they work, etc.
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56 | AC_SYS_LARGEFILE
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57 |
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58 | # Checks for libraries.
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59 | AC_SEARCH_LIBS(getpwnam, [sun])
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60 |
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61 | # Checks for header files.
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62 | AC_HEADER_STDC
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63 | AC_HEADER_DIRENT
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64 | AC_HEADER_STAT
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65 | AC_HEADER_TIME
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66 | AC_CHECK_HEADERS(stdlib.h locale.h unistd.h limits.h fcntl.h string.h \
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67 | memory.h sys/param.h sys/resource.h sys/time.h sys/timeb.h)
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68 |
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69 | # Set a flag if we have an ANSI C compiler
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70 | if test "$ac_cv_prog_cc_stdc" != no; then
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71 | AC_DEFINE(HAVE_ANSI_COMPILER, 1,
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72 | [Define to 1 if your compiler conforms to the ANSI C standard.])
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73 | fi
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74 |
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75 |
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76 | # Determine what kind of variadic function calls we support
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77 | AC_CHECK_HEADERS(stdarg.h varargs.h, break)
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78 |
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79 | AM_PROG_CC_C_O
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80 | AC_C_CONST
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81 | AC_TYPE_SIGNAL
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82 | AC_TYPE_UID_T
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83 | AC_TYPE_PID_T
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84 |
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85 | # Find some definition for uintmax_t
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86 |
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87 | AC_CHECK_TYPE(uintmax_t,,[
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88 | uintmax_t="unsigned long"
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89 | AC_CHECK_TYPE(unsigned long long,[uintmax_t="unsigned long long"])
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90 | AC_DEFINE_UNQUOTED(uintmax_t,$uintmax_t,
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91 | [Define uintmax_t if not defined in <stdint.h> or <inttypes.h>.])])
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92 |
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93 | # Find out whether our struct stat returns nanosecond resolution timestamps.
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94 |
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95 | AC_STRUCT_ST_MTIM_NSEC
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96 | AC_MSG_CHECKING([whether to use high resolution file timestamps])
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97 | AC_CACHE_VAL(make_cv_file_timestamp_hi_res, [
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98 | make_cv_file_timestamp_hi_res=no
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99 | if test "$ac_cv_struct_st_mtim_nsec" != no; then
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100 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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101 | # if HAVE_INTTYPES_H
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102 | # include <inttypes.h>
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103 | # endif]],
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104 | [[char a[0x7fffffff < (uintmax_t)-1 >> 30 ? 1 : -1];]])],
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105 | [make_cv_file_timestamp_hi_res=yes],
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106 | [])
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107 | fi])
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108 | AC_MSG_RESULT($make_cv_file_timestamp_hi_res)
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109 | if test "$make_cv_file_timestamp_hi_res" = yes; then
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110 | val=1
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111 | else
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112 | val=0
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113 | fi
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114 | AC_DEFINE_UNQUOTED(FILE_TIMESTAMP_HI_RES, $val,
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115 | [Use high resolution file timestamps if nonzero.])
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116 |
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117 | if test "$make_cv_file_timestamp_hi_res" = yes; then
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118 | # Solaris 2.5.1 needs -lposix4 to get the clock_gettime function.
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119 | # Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4.
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120 | AC_SEARCH_LIBS(clock_gettime, [rt posix4])
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121 | if test "$ac_cv_search_clock_gettime" != no; then
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122 | AC_DEFINE(HAVE_CLOCK_GETTIME, 1,
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123 | [Define to 1 if you have the clock_gettime function.])
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124 | fi
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125 | fi
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126 |
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127 | # Check for DOS-style pathnames.
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128 | pds_AC_DOS_PATHS
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129 |
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130 | # See if we have a standard version of gettimeofday(). Since actual
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131 | # implementations can differ, just make sure we have the most common
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132 | # one.
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133 | AC_CACHE_CHECK([for standard gettimeofday], ac_cv_func_gettimeofday,
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134 | [ac_cv_func_gettimeofday=no
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135 | AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <sys/time.h>
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136 | int main ()
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137 | {
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138 | struct timeval t; t.tv_sec = -1; t.tv_usec = -1;
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139 | exit (gettimeofday (&t, 0) != 0
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140 | || t.tv_sec < 0 || t.tv_usec < 0);
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141 | }]])],
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142 | [ac_cv_func_gettimeofday=yes],
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143 | [ac_cv_func_gettimeofday=no],
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144 | [ac_cv_func_gettimeofday="no (cross-compiling)"])])
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145 | if test "$ac_cv_func_gettimeofday" = yes; then
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146 | AC_DEFINE(HAVE_GETTIMEOFDAY, 1,
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147 | [Define to 1 if you have a standard gettimeofday function])
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148 | fi
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149 |
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150 | AC_CHECK_FUNCS( strdup strndup mkstemp mktemp fdopen fileno \
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151 | dup2 getcwd realpath sigsetmask sigaction \
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152 | getgroups seteuid setegid setlinebuf setreuid setregid \
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153 | getrlimit setrlimit setvbuf pipe strerror strsignal \
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154 | lstat readlink atexit)
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155 |
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156 | # We need to check declarations, not just existence, because on Tru64 this
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157 | # function is not declared without special flags, which themselves cause
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158 | # other problems. We'll just use our own.
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159 | AC_CHECK_DECLS([bsd_signal], [], [], [[#include <signal.h>]])
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160 |
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161 | AC_FUNC_SETVBUF_REVERSED
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162 |
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163 | # Rumor has it that strcasecmp lives in -lresolv on some odd systems.
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164 | # It doesn't hurt much to use our own if we can't find it so I don't
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165 | # make the effort here.
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166 | AC_CHECK_FUNCS(strcasecmp strncasecmp strcmpi strncmpi stricmp strnicmp)
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167 |
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168 | # strcoll() is used by the GNU glob library
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169 | AC_FUNC_STRCOLL
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170 |
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171 | AC_FUNC_ALLOCA
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172 | AC_FUNC_FORK([])
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173 | AC_FUNC_VPRINTF
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174 | AC_FUNC_CLOSEDIR_VOID
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175 |
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176 | AC_FUNC_GETLOADAVG
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177 |
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178 | # AC_FUNC_GETLOADAVG is documented to set the NLIST_STRUCT value, but it
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179 | # doesn't. So, we will.
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180 |
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181 | if test "$ac_cv_header_nlist_h" = yes; then
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182 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <nlist.h>]],
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183 | [[struct nlist nl;
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184 | nl.n_name = "string";
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185 | return 0;]])],
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186 | [make_cv_nlist_struct=yes],
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187 | [make_cv_nlist_struct=no])
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188 | if test "$make_cv_nlist_struct" = yes; then
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189 | AC_DEFINE(NLIST_STRUCT, 1,
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190 | [Define to 1 if struct nlist.n_name is a pointer rather than an array.])
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191 | fi
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192 | fi
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193 |
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194 | AC_CHECK_DECLS([sys_siglist, _sys_siglist, __sys_siglist], , ,
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195 | [AC_INCLUDES_DEFAULT
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196 | #include <signal.h>
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197 | /* NetBSD declares sys_siglist in unistd.h. */
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198 | #if HAVE_UNISTD_H
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199 | # include <unistd.h>
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200 | #endif
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201 | ])
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202 |
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203 |
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204 | # Check out the wait reality.
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205 | AC_CHECK_HEADERS(sys/wait.h,,,[[#include <sys/types.h>]])
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206 | AC_CHECK_FUNCS(waitpid wait3)
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207 | AC_MSG_CHECKING(for union wait)
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208 | AC_CACHE_VAL(make_cv_union_wait, [dnl
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209 | AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
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210 | #include <sys/wait.h>]],
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211 | [[union wait status; int pid; pid = wait (&status);
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212 | #ifdef WEXITSTATUS
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213 | /* Some POSIXoid systems have both the new-style macros and the old
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214 | union wait type, and they do not work together. If union wait
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215 | conflicts with WEXITSTATUS et al, we don't want to use it at all. */
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216 | if (WEXITSTATUS (status) != 0) pid = -1;
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217 | #ifdef WTERMSIG
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218 | /* If we have WEXITSTATUS and WTERMSIG, just use them on ints. */
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219 | -- blow chunks here --
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220 | #endif
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221 | #endif
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222 | #ifdef HAVE_WAITPID
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223 | /* Make sure union wait works with waitpid. */
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224 | pid = waitpid (-1, &status, 0);
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225 | #endif
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226 | ]])],
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227 | [make_cv_union_wait=yes],
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228 | [make_cv_union_wait=no])])
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229 | if test "$make_cv_union_wait" = yes; then
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230 | AC_DEFINE(HAVE_UNION_WAIT, 1,
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231 | [Define to 1 if you have the \`union wait' type in <sys/wait.h>.])
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232 | fi
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233 | AC_MSG_RESULT($make_cv_union_wait)
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234 |
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235 |
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236 | # If we're building on Windows/DOS/OS/2, add some support for DOS drive specs.
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237 | if test "$PATH_SEPARATOR" = ';'; then
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238 | AC_DEFINE(HAVE_DOS_PATHS, 1,
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239 | [Define to 1 if your system requires backslashes or drive specs in pathnames.])
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240 | fi
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241 |
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242 |
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243 | # See if the user wants to use pmake's "customs" distributed build capability
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244 |
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245 | AC_SUBST(REMOTE) REMOTE=stub
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246 | use_customs=false
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247 | AC_ARG_WITH(customs,
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248 | AC_HELP_STRING([--with-customs=DIR],
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249 | [enable remote jobs via Customs--see README.customs]),
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250 | [case $withval in
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251 | n|no) : ;;
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252 | *) make_cppflags="$CPPFLAGS"
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253 | case $withval in
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254 | y|ye|yes) : ;;
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255 | *) CPPFLAGS="$CPPFLAGS -I$with_customs/include/customs"
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256 | make_ldflags="$LDFLAGS -L$with_customs/lib" ;;
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257 | esac
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258 | CF_NETLIBS
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259 | AC_CHECK_HEADER(customs.h,
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260 | [use_customs=true
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261 | REMOTE=cstms
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262 | LIBS="$LIBS -lcustoms" LDFLAGS="$make_ldflags"],
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263 | [with_customs=no
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264 | CPPFLAGS="$make_cppflags" make_badcust=yes])
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265 | ;;
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266 | esac])
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267 | # Tell automake about this, so it can include the right .c files.
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268 | AM_CONDITIONAL(USE_CUSTOMS, test "$use_customs" = true)
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269 |
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270 | # See if the user asked to handle case insensitive file systems.
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271 |
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272 | AH_TEMPLATE(HAVE_CASE_INSENSITIVE_FS, [Use case insensitive file names])
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273 | AC_ARG_ENABLE(case-insensitive-file-system,
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274 | AC_HELP_STRING([--enable-case-insensitive-file-system],
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275 | [assume file systems are case insensitive]),
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276 | [case $enableval in
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277 | yes) AC_DEFINE(HAVE_CASE_INSENSITIVE_FS) ;;
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278 | esac])
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279 |
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280 | # See if we can handle the job server feature, and if the user wants it.
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281 |
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282 | AC_ARG_ENABLE(job-server,
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283 | AC_HELP_STRING([--disable-job-server],
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284 | [disallow recursive make communication during -jN]),
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285 | [make_cv_job_server="$enableval" user_job_server="$enableval"],
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286 | [make_cv_job_server="yes"])
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287 |
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288 | has_wait_nohang=yes
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289 | case "$ac_cv_func_waitpid/$ac_cv_func_wait3" in
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290 | no/no) has_wait_nohang=no ;;
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291 | esac
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292 |
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293 | AC_CACHE_CHECK(for SA_RESTART, make_cv_sa_restart, [
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294 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>]],
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295 | [[return SA_RESTART;]])],
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296 | [make_cv_sa_restart=yes],
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297 | [make_cv_sa_restart=no])])
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298 |
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299 | if test "$make_cv_sa_restart" != no; then
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300 | AC_DEFINE(HAVE_SA_RESTART, 1,
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301 | [Define to 1 if <signal.h> defines the SA_RESTART constant.])
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302 | fi
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303 |
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304 | # enable make_cv_sa_restart for OS/2 so that the jobserver will be enabled,
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305 | # but do it after HAVE_SA_RESTART has been defined.
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306 | case "$host_os" in
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307 | os2*) make_cv_sa_restart=yes ;;
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308 | esac
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309 |
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310 | case "$ac_cv_func_pipe/$ac_cv_func_sigaction/$make_cv_sa_restart/$has_wait_nohang/$make_cv_job_server" in
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311 | yes/yes/yes/yes/yes)
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312 | AC_DEFINE(MAKE_JOBSERVER, 1,
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313 | [Define to 1 to enable job server support in GNU make.]);;
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314 | esac
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315 |
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316 | # if we have both lstat() and readlink() then we can support symlink
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317 | # timechecks.
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318 | case "$ac_cv_func_lstat/$ac_cv_func_readlink" in
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319 | yes/yes)
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320 | AC_DEFINE(MAKE_SYMLINKS, 1,
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321 | [Define to 1 to enable symbolic link timestamp checking.]);;
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322 | esac
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323 |
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324 | # Find the SCCS commands, so we can include them in our default rules.
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325 |
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326 | AC_CACHE_CHECK(for location of SCCS get command, make_cv_path_sccs_get, [
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327 | if test -f /usr/sccs/get; then
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328 | make_cv_path_sccs_get=/usr/sccs/get
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329 | else
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330 | make_cv_path_sccs_get=get
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331 | fi])
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332 | AC_DEFINE_UNQUOTED(SCCS_GET, ["$make_cv_path_sccs_get"],
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333 | [Define to the name of the SCCS 'get' command.])
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334 |
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335 | ac_clean_files="$ac_clean_files s.conftest conftoast" # Remove these later.
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336 | if ( /usr/sccs/admin -n s.conftest || admin -n s.conftest ) >/dev/null 2>&1 &&
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337 | test -f s.conftest; then
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338 | # We successfully created an SCCS file.
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339 | AC_CACHE_CHECK(if SCCS get command understands -G, make_cv_sys_get_minus_G, [
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340 | if $make_cv_path_sccs_get -Gconftoast s.conftest >/dev/null 2>&1 &&
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341 | test -f conftoast; then
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342 | make_cv_sys_get_minus_G=yes
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343 | else
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344 | make_cv_sys_get_minus_G=no
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345 | fi])
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346 | case "$make_cv_sys_get_minus_G" in
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347 | yes) AC_DEFINE(SCCS_GET_MINUS_G, 1,
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348 | [Define to 1 if the SCCS 'get' command understands the '-G<file>' option.]);;
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349 | esac
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350 | fi
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351 | rm -f s.conftest conftoast
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352 |
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353 | # Check the system to see if it provides GNU glob. If not, use our
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354 | # local version.
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355 | AC_MSG_CHECKING(if system libc has GNU glob)
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356 | AC_CACHE_VAL(make_cv_sys_gnu_glob, [
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357 | AC_EGREP_CPP(gnu glob,[
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358 | #include <features.h>
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359 | #include <glob.h>
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360 | #include <fnmatch.h>
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361 |
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362 | #define GLOB_INTERFACE_VERSION 1
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363 | #if !defined _LIBC && defined __GNU_LIBRARY__ && __GNU_LIBRARY__ > 1
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364 | # include <gnu-versions.h>
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365 | # if _GNU_GLOB_INTERFACE_VERSION == GLOB_INTERFACE_VERSION
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366 | gnu glob
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367 | # endif
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368 | #endif
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369 | ], [AC_MSG_RESULT(yes)
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370 | make_cv_sys_gnu_glob=yes], [AC_MSG_RESULT([no; using local copy])
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371 | make_cv_sys_gnu_glob=no])])
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372 | if test "$make_cv_sys_gnu_glob" = no; then
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373 | GLOBINC='-I$(srcdir)/glob'
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374 | GLOBLIB=glob/libglob.a
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375 | fi
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376 | AC_SUBST(GLOBINC)
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377 | AC_SUBST(GLOBLIB)
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378 |
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379 | # Tell automake about this, so it can build the right .c files.
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380 | AM_CONDITIONAL(USE_LOCAL_GLOB, test "$make_cv_sys_gnu_glob" = no)
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381 |
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382 | # Let the makefile know what our build host is
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383 |
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384 | AC_DEFINE_UNQUOTED(MAKE_HOST,"$host",[Build host information.])
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385 | MAKE_HOST="$host"
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386 | AC_SUBST(MAKE_HOST)
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387 |
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388 | w32_target_env=no
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389 | AM_CONDITIONAL([WINDOWSENV], false)
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390 |
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391 | case "$host" in
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392 | *-*-mingw32)
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393 | AM_CONDITIONAL(WINDOWSENV, true)
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394 | w32_target_env=yes
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395 | AC_DEFINE([WINDOWS32], [1], [Use platform specific coding])
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396 | AC_DEFINE([HAVE_DOS_PATHS], [1], [Use platform specific coding])
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397 | ;;
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398 | esac
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399 |
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400 | AC_DEFINE_UNQUOTED(PATH_SEPARATOR_CHAR,'$PATH_SEPARATOR',[Define to the character that separates directories in PATH.])
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401 |
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402 | # Include the Maintainer's Makefile section, if it's here.
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403 |
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404 | MAINT_MAKEFILE=/dev/null
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405 | if test -r "$srcdir/maintMakefile"; then
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406 | MAINT_MAKEFILE="$srcdir/maintMakefile"
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407 | fi
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408 | AC_SUBST_FILE(MAINT_MAKEFILE)
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409 |
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410 | # Allow building with dmalloc
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411 | AM_WITH_DMALLOC
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412 |
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413 | # Forcibly disable SET_MAKE. If it's set it breaks things like the test
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414 | # scripts, etc.
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415 | SET_MAKE=
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416 |
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417 | # Sanity check and inform the user of what we found
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418 |
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419 | case "$make_badcust" in
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420 | yes) echo
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421 | echo "WARNING: --with-customs specified but no customs.h could be found;"
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422 | echo " disabling Customs support."
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423 | echo ;;
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424 | esac
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425 |
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426 | case "$with_customs" in
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427 | ""|n|no|y|ye|yes) ;;
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428 | *) if test -f "$with_customs/lib/libcustoms.a"; then
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429 | :
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430 | else
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431 | echo
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432 | echo "WARNING: '$with_customs/lib' does not appear to contain the"
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433 | echo " Customs library. You must build and install Customs"
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434 | echo " before compiling GNU make."
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435 | echo
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436 | fi ;;
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437 | esac
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438 |
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439 | case "$has_wait_nohang" in
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440 | no) echo
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441 | echo "WARNING: Your system has neither waitpid() nor wait3()."
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442 | echo " Without one of these, signal handling is unreliable."
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443 | echo " You should be aware that running GNU make with -j"
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444 | echo " could result in erratic behavior."
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445 | echo ;;
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446 | esac
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447 |
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448 | case "$make_cv_job_server/$user_job_server" in
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449 | no/yes) echo
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450 | echo "WARNING: Make job server requires a POSIX-ish system that"
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451 | echo " supports the pipe(), sigaction(), and either"
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452 | echo " waitpid() or wait3() functions. Your system doesn't"
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453 | echo " appear to provide one or more of those."
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454 | echo " Disabling job server support."
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455 | echo ;;
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456 | esac
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457 |
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458 |
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459 | # Specify what files are to be created.
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460 | AC_CONFIG_FILES(Makefile glob/Makefile po/Makefile.in config/Makefile doc/Makefile w32/Makefile)
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461 |
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462 | # OK, do it!
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463 |
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464 | AC_OUTPUT
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465 |
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466 | # We only generate the build.sh if we have a build.sh.in; we won't have
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467 | # one before we've created a distribution.
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468 | if test -f "$srcdir/build.sh.in"; then
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469 | ./config.status --file build.sh
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470 | chmod +x build.sh
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471 | fi
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472 |
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473 | dnl Local Variables:
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474 | dnl comment-start: "dnl "
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475 | dnl comment-end: ""
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476 | dnl comment-start-skip: "\\bdnl\\b\\s *"
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477 | dnl compile-command: "make configure config.h.in"
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478 | dnl End:
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