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1 dnl aclocal.m4 -- extra macros for configuring Octave |
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2 dnl |
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3 dnl Copyright (C) 1996 John W. Eaton |
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4 dnl |
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5 dnl This file is part of Octave. |
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6 dnl |
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7 dnl Octave is free software; you can redistribute it and/or modify it |
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8 dnl under the terms of the GNU General Public License as published by the |
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9 dnl Free Software Foundation; either version 2, or (at your option) any |
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10 dnl later version. |
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11 dnl |
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12 dnl Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 dnl ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 dnl FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 dnl for more details. |
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16 dnl |
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17 dnl You should have received a copy of the GNU General Public License |
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18 dnl along with Octave; see the file COPYING. If not, write to the Free |
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19 dnl Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
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20 dnl 02111-1307, USA. |
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21 dnl |
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22 dnl See what libraries are used by the C++ compiler. Need this for |
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23 dnl dynamic linking. |
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24 dnl |
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25 dnl Write a minimal program and compile it with -v. I don't know what |
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26 dnl to do if your compiler doesn't have -v... |
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27 dnl |
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28 dnl OCTAVE_CXXLIBS() |
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29 AC_DEFUN(OCTAVE_CXXLIBS, |
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30 [AC_REQUIRE([AC_PROG_CXXCPP]) |
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31 AC_REQUIRE([AC_PROG_CXX]) |
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32 AC_MSG_CHECKING([for C++ libraries]) |
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33 AC_CACHE_VAL(octave_cv_cxxlibs, |
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34 [AC_LANG_SAVE |
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35 AC_LANG_CPLUSPLUS |
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36 XCXXFLAGS="$CXXFLAGS" |
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37 CXXFLAGS="$XCXXFLAGS -v" |
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38 export CXXFLAGS |
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39 dnl |
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40 dnl This may be too tricky and break with future autoconf releases, |
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41 dnl but it works with version 2.3, even with the Ultrix /bin/sh. |
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42 dnl |
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43 dnl I don't think that stripping commas out of this will ever hurt. |
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44 dnl |
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45 coutput=`( AC_TRY_LINK([], [], []) ) AC_FD_CC>&1 | sed 's/,/ /g'` |
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46 CXXFLAGS="$XCXXFLAGS" |
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47 AC_LANG_RESTORE |
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48 changequote(, )dnl |
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49 dnl |
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50 octave_cv_cxxlibs= |
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51 lflags= |
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52 want_arg= |
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53 dnl |
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54 for arg in $coutput; do |
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55 if test x$want_arg = x; then |
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56 want_arg= |
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57 case $arg in |
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58 /*.a) |
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59 exists=false |
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60 for f in $lflags; do |
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61 if test x$arg = x$f; then |
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62 exists=true |
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63 fi |
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64 done |
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65 if $exists; then |
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66 arg= |
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67 else |
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68 lflags="$lflags $arg" |
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69 fi |
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70 ;; |
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71 -[LR]*) |
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72 exists=false |
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73 for f in $lflags; do |
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74 if test x$arg = x$f; then |
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75 exists=true |
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76 fi |
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77 done |
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78 ;; |
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79 -l*) |
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80 if test x$arg = x-lang-c++; then |
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81 arg= |
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82 else |
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83 lflags="$lflags $arg" |
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84 fi |
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85 ;; |
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86 -u) |
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87 want_arg=$arg |
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88 ;; |
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89 *) |
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90 arg= |
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91 ;; |
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92 esac |
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93 else |
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94 want_arg= |
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95 fi |
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96 if test x$arg != x; then |
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97 octave_cv_cxxlibs="$octave_cv_cxxlibs $arg" |
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98 fi |
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99 done |
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100 dnl |
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101 changequote([, ])]) |
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102 AC_MSG_RESULT([$octave_cv_cxxlibs]) |
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103 CXXLIBS="$octave_cv_cxxlibs" |
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104 AC_SUBST(CXXLIBS)]) |
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105 dnl |
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106 dnl See what libraries are used by the Fortran compiler. |
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107 dnl |
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108 dnl Write a minimal program and compile it with -v. I don't know what |
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109 dnl to do if your compiler doesn't have -v... |
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110 dnl |
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111 dnl OCTAVE_FLIBS() |
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112 AC_DEFUN(OCTAVE_FLIBS, |
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113 [AC_MSG_CHECKING([for Fortran libraries]) |
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114 AC_CACHE_VAL(octave_cv_flibs, |
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115 [changequote(, )dnl |
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116 echo " END" > conftest.f |
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117 foutput=`${F77-f77} -v -o conftest conftest.f 2>&1` |
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118 dnl |
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119 dnl The easiest thing to do for xlf output is to replace all the commas |
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120 dnl with spaces. Try to only do that if the output is really from xlf, |
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121 dnl since doing that causes problems on other systems. |
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122 dnl |
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123 xlf_p=`echo $foutput | grep xlfentry` |
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124 if test -n "$xlf_p"; then |
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125 foutput=`echo $foutput | sed 's/,/ /g'` |
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126 fi |
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127 dnl |
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128 ld_run_path=`echo $foutput | \ |
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129 sed -n -e 's/^.*\(LD_RUN_PATH *= *\([^ ]*\).*/\1/p'` |
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130 dnl |
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131 dnl We are only supposed to find this on Solaris systems, and this |
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132 dnl substitution is probably only going to work with gcc on those |
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133 dnl systems... |
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134 dnl |
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135 if test -n "$ld_run_path"; then |
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136 if test "$ac_cv_prog_gcc" = yes; then |
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137 ld_run_path="-Xlinker -R -Xlinker $ld_run_path" |
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138 else |
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139 ld_run_path="-R $ld_run_path" |
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140 fi |
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141 fi |
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142 dnl |
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143 flibs= |
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144 lflags= |
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145 dnl |
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146 dnl If want_arg is set, we know we want the arg to be added to the list, |
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147 dnl so we don't have to examine it. |
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148 dnl |
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149 want_arg= |
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150 dnl |
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151 for arg in $foutput; do |
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152 old_want_arg=$want_arg |
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153 want_arg= |
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154 case "$old_want_arg" in |
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155 '') |
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156 case $arg in |
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157 /*.a | /*values-X*.o) |
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158 exists=false |
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159 for f in $lflags; do |
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160 if test x$arg = x$f; then |
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161 exists=true |
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162 fi |
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163 done |
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164 if $exists; then |
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165 arg= |
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166 else |
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167 lflags="$lflags $arg" |
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168 fi |
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169 ;; |
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170 -bI:*) |
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171 exists=false |
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172 for f in $lflags; do |
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173 if test x$arg = x$f; then |
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174 exists=true |
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175 fi |
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176 done |
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177 if $exists; then |
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178 arg= |
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179 else |
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180 if test "$ac_cv_prog_gcc" = yes; then |
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181 lflags="$lflags -Xlinker $arg" |
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182 else |
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183 lflags="$lflags $arg" |
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184 fi |
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185 fi |
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186 ;; |
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187 -lang*) |
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188 arg= |
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189 ;; |
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190 -[lLR]) |
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191 want_arg=$arg |
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192 arg= |
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193 ;; |
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194 -[lLR]*) |
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195 exists=false |
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196 for f in $lflags; do |
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197 if test x$arg = x$f; then |
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198 exists=true |
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199 fi |
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200 done |
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201 if $exists || test x$arg = x-lm -o x$arg = x-lc; then |
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202 arg= |
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203 else |
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204 lflags="$lflags $arg" |
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205 fi |
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206 ;; |
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207 -u) |
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208 want_arg=$arg |
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209 ;; |
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210 -Y) |
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211 want_arg=$arg |
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212 arg= |
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213 ;; |
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214 *) |
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215 arg= |
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216 ;; |
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217 esac |
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218 ;; |
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219 -[lLR]) |
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220 arg="$old_want_arg $arg" |
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221 ;; |
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222 -Y) |
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223 dnl |
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224 dnl Should probably try to ensure unique directory options here too. |
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225 dnl This probably only applies to Solaris systems, and then will only |
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226 dnl work with gcc... |
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227 dnl |
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228 arg=`echo $arg | sed -e 's%^P,%%'` |
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229 SAVE_IFS=$IFS |
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230 IFS=: |
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231 list= |
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232 for elt in $arg; do |
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233 list="$list -L $elt" |
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234 done |
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235 IFS=$SAVE_IFS |
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236 arg="$list" |
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237 ;; |
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238 esac |
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239 dnl |
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240 if test -n "$arg"; then |
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241 flibs="$flibs $arg" |
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242 fi |
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243 done |
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244 if test -n "$ld_run_path"; then |
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245 flibs_result="$ld_run_path $flibs" |
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246 else |
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247 flibs_result="$flibs" |
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248 fi |
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249 changequote([, ])dnl |
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250 octave_cv_flibs="$flibs_result"]) |
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251 FLIBS="$octave_cv_flibs" |
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252 AC_MSG_RESULT([$FLIBS])]) |
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253 dnl |
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254 dnl See if the Fortran compiler uses uppercase external names. |
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255 dnl |
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256 dnl OCTAVE_F77_UPPERCASE_NAMES() |
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257 AC_DEFUN(OCTAVE_F77_UPPERCASE_NAMES, |
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258 [AC_MSG_CHECKING([whether $F77 uses uppercase external names]) |
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259 AC_CACHE_VAL(octave_cv_f77_uppercase_names, |
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260 [octave_cv_f77_uppercase_names=no |
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261 cat > conftest.f <<EOF |
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262 subroutine xxyyzz () |
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263 return |
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264 end |
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265 EOF |
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266 if ${F77-f77} -c conftest.f 1>&AC_FD_CC 2>&AC_FD_CC; then |
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267 if test "`${NM-nm} conftest.o | grep XXYYZZ`" != ""; then |
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268 octave_cv_f77_uppercase_names=yes |
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269 fi |
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270 fi]) |
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271 AC_MSG_RESULT([$octave_cv_f77_uppercase_names]) |
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272 if test "$octave_cv_f77_uppercase_names" = yes; then |
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273 AC_DEFINE(F77_UPPERCASE_NAMES, 1) |
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274 fi]) |
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275 dnl |
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276 dnl See if the Fortran compiler appends underscores to external names. |
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277 dnl |
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278 dnl OCTAVE_F77_APPEND_UNDERSCORE() |
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279 AC_DEFUN(OCTAVE_F77_APPEND_UNDERSCORE, |
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280 [AC_MSG_CHECKING([whether $F77 appends underscores to external names]) |
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281 AC_REQUIRE([OCTAVE_F77_UPPERCASE_NAMES]) |
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282 AC_CACHE_VAL(octave_cv_f77_append_underscore, |
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283 [octave_cv_f77_append_underscore=no |
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284 cat > conftest.f <<EOF |
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285 subroutine xxyyzz () |
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286 return |
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287 end |
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288 EOF |
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289 if ${F77-f77} -c conftest.f 1>&AC_FD_CC 2>&AC_FD_CC; then |
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290 if test "$octave_cv_f77_uppercase_names" = yes; then |
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291 if test "`${NM-nm} conftest.o | grep XXYYZZ_`" != ""; then |
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292 octave_cv_f77_append_underscore=yes |
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293 fi |
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294 else |
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295 if test "`${NM-nm} conftest.o | grep xxyyzz_`" != ""; then |
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296 octave_cv_f77_append_underscore=yes |
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297 fi |
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298 fi |
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299 fi]) |
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300 AC_MSG_RESULT([$octave_cv_f77_append_underscore]) |
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301 if test "$octave_cv_f77_append_underscore" = yes; then |
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302 AC_DEFINE(F77_APPEND_UNDERSCORE, 1) |
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303 fi]) |
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304 dnl |
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305 dnl See if the Fortran compiler is compatible with f2c. |
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306 dnl |
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307 dnl Write a minimal program, compile it, and see if it works as |
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308 dnl expected. |
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309 dnl |
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310 dnl OCTAVE_F2C_F77_COMPAT() |
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311 AC_DEFUN(OCTAVE_F2C_F77_COMPAT, |
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312 [AC_REQUIRE([OCTAVE_FLIBS]) |
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313 AC_REQUIRE([OCTAVE_F77_APPEND_UNDERSCORE]) |
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314 AC_MSG_CHECKING([$F77/f2c compatibility]) |
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315 AC_CACHE_VAL(octave_cv_f2c_f77_compat, |
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316 [trap 'rm -f ftest* ctest* core; exit 1' 1 3 15 |
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317 octave_cv_f2c_f77_compat=no |
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318 cat > ftest.f <<EOF |
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319 INTEGER FUNCTION FORSUB (C, D) |
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320 CHARACTER *(*) C |
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321 INTEGER L |
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322 DOUBLE PRECISION D |
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323 L = LEN (C) |
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324 WRITE (*, '(A,1X,I2)') C(1:L), INT (D) |
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325 FORSUB = 1 |
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326 RETURN |
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327 END |
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328 EOF |
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329 ${F77-f77} -c ftest.f 1>&AC_FD_CC 2>&AC_FD_CC |
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330 dnl |
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331 changequote(, ) |
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332 cat > ctest.c <<EOF |
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333 #include "confdefs.h" |
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334 static char s[14]; |
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335 int main () |
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336 { |
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337 double d = 10.0; |
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338 int len; |
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339 strcpy (s, "FOO-I-HITHERE"); |
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340 len = strlen (s); |
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341 #ifdef F77_APPEND_UNDERSCORE |
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342 return (! forsub_ (s, &d, len)); |
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343 #else |
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344 return (! forsub (s, &d, len)); |
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345 #endif |
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346 } |
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347 #if defined (sun) |
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348 int MAIN_ () { return 0; } |
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349 #elif defined (linux) && defined (__ELF__) |
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350 int MAIN__ () { return 0; } |
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351 #endif |
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352 EOF |
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353 changequote([, ]) |
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354 dnl |
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355 if ${CC-cc} -c ctest.c 1>&AC_FD_CC 2>&AC_FD_CC; then |
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356 if ${CC-cc} -o ctest ctest.o ftest.o $FLIBS -lm 1>&AC_FD_CC 2>&AC_FD_CC; then |
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357 ctest_output=`./ctest 2>&1` |
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358 status=$? |
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359 if test $status -eq 0 && test "$ctest_output" = "FOO-I-HITHERE 10"; then |
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360 octave_cv_f2c_f77_compat=yes |
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361 fi |
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362 fi |
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363 fi]) |
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364 rm -f ftest* ctest* core |
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365 AC_MSG_RESULT([$octave_cv_f2c_f77_compat])]) |
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366 dnl |
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367 dnl See if struct group has a gr_passwd field. |
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368 dnl |
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369 AC_DEFUN(OCTAVE_STRUCT_GR_PASSWD, |
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370 [AC_CACHE_CHECK([for gr_passwd in struct group], octave_cv_struct_gr_passwd, |
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371 [AC_TRY_COMPILE([#include <sys/types.h> |
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372 #include <grp.h>], [struct group s; s.gr_passwd;], |
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373 octave_cv_struct_gr_passwd=yes, octave_cv_struct_gr_passwd=no)]) |
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374 if test $octave_cv_struct_gr_passwd = yes; then |
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375 AC_DEFINE(HAVE_GR_PASSWD) |
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376 fi |
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377 ]) |
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378 dnl |
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379 dnl See if the standard string class has npos as a member. |
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380 dnl |
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381 AC_DEFUN(OCTAVE_STRING_NPOS, |
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382 [AC_CACHE_CHECK([whether including <string> defines NPOS], |
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383 octave_cv_string_npos, |
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384 [AC_LANG_SAVE |
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385 AC_LANG_CPLUSPLUS |
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386 AC_TRY_COMPILE([#include <string>], |
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387 [size_t foo = NPOS], |
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388 octave_cv_string_npos=yes, octave_cv_string_npos=no)]) |
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389 if test $octave_cv_string_npos = no; then |
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390 AC_DEFINE(NPOS, string::npos) |
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391 fi |
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392 AC_LANG_RESTORE |
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393 ]) |
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394 dnl |
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395 dnl The following test is from Karl Berry's Kpathseach library. I'm |
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396 dnl including it here in case we someday want to make the use of |
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397 dnl kpathsea optional. |
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398 dnl |
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399 dnl Some BSD putenv's, e.g., FreeBSD, do malloc/free's on the environment. |
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400 dnl This test program is due to Mike Hibler <mike@cs.utah.edu>. |
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401 dnl We don't actually need to run this if we don't have putenv, but it |
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402 dnl doesn't hurt. |
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403 AC_DEFUN(OCTAVE_SMART_PUTENV, |
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404 [AC_MSG_CHECKING(whether putenv uses malloc) |
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405 AC_CACHE_VAL(octave_cv_func_putenv_malloc, |
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406 [AC_TRY_RUN([ |
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407 #define VAR "YOW_VAR" |
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408 #define STRING1 "GabbaGabbaHey" |
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409 #define STRING2 "Yow!!" /* should be shorter than STRING1 */ |
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410 extern char *getenv (); /* in case char* and int don't mix gracefully */ |
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411 main () |
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412 { |
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413 char *str1, *rstr1, *str2, *rstr2; |
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414 str1 = getenv (VAR); |
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415 if (str1) |
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416 exit (1); |
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417 str1 = malloc (strlen (VAR) + 1 + strlen (STRING1) + 1); |
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418 if (str1 == 0) |
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419 exit (2); |
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420 strcpy (str1, VAR); |
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421 strcat (str1, "="); |
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422 strcat (str1, STRING1); |
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423 if (putenv (str1) < 0) |
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424 exit (3); |
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425 rstr1 = getenv (VAR); |
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426 if (rstr1 == 0) |
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427 exit (4); |
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428 rstr1 -= strlen (VAR) + 1; |
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429 if (strncmp (rstr1, VAR, strlen (VAR))) |
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430 exit (5); |
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431 str2 = malloc (strlen (VAR) + 1 + strlen (STRING2) + 1); |
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432 if (str2 == 0 || str1 == str2) |
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433 exit (6); |
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434 strcpy (str2, VAR); |
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435 strcat (str2, "="); |
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436 strcat (str2, STRING2); |
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437 if (putenv (str2) < 0) |
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438 exit (7); |
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439 rstr2 = getenv (VAR); |
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440 if (rstr2 == 0) |
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441 exit (8); |
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442 rstr2 -= strlen (VAR) + 1; |
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443 #if 0 |
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444 printf ("rstr1=0x%x, rstr2=0x%x\n", rstr1, rstr2); |
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445 /* |
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446 * If string from first call was reused for the second call, |
|
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447 * you had better not do a free on the first string! |
|
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448 */ |
|
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449 if (rstr1 == rstr2) |
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450 printf ("#define SMART_PUTENV\n"); |
|
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451 else |
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452 printf ("#undef SMART_PUTENV\n"); |
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453 #endif |
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454 exit (rstr1 == rstr2 ? 0 : 1); |
|
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455 }], octave_cv_func_putenv_malloc=yes, octave_cv_func_putenv_malloc=no, |
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456 octave_cv_func_putenv_malloc=no)])dnl |
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457 AC_MSG_RESULT($octave_cv_func_putenv_malloc) |
|
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458 if test $octave_cv_func_putenv_malloc = yes; then |
|
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459 AC_DEFINE(SMART_PUTENV) |
|
1708
|
460 fi]) |
|
1788
|
461 dnl |
|
|
462 dnl This is a GNU libc invention, and this check is also from Karl |
|
|
463 dnl Berry's kpathsea library. |
|
|
464 dnl |
|
|
465 AC_DEFUN(OCTAVE_PROGRAM_INVOCATION_NAME, |
|
|
466 [AC_MSG_CHECKING(whether program_invocation_name is predefined) |
|
|
467 AC_CACHE_VAL(octave_cv_var_program_inv_name, |
|
|
468 [AC_TRY_LINK(, [main() { program_invocation_name = "love"; }], |
|
|
469 octave_cv_var_program_inv_name=yes, octave_cv_var_program_inv_name=no)])dnl |
|
|
470 AC_MSG_RESULT($octave_cv_var_program_inv_name) |
|
|
471 if test $octave_cv_var_program_inv_name = yes; then |
|
|
472 AC_DEFINE(HAVE_PROGRAM_INVOCATION_NAME) |
|
|
473 fi]) |
|
2469
|
474 dnl |
|
|
475 dnl These two checks for signal functions were originally part of the |
|
|
476 dnl aclocal.m4 file distributed with bash 2.0. |
|
|
477 dnl |
|
|
478 dnl Check type of signal routines (posix, 4.2bsd, 4.1bsd or v7) |
|
|
479 AC_DEFUN(OCTAVE_SIGNAL_CHECK, |
|
|
480 [AC_REQUIRE([AC_TYPE_SIGNAL]) |
|
|
481 AC_MSG_CHECKING(for type of signal functions) |
|
|
482 AC_CACHE_VAL(octave_cv_signal_vintage, |
|
|
483 [ |
|
|
484 AC_TRY_LINK([#include <signal.h>],[ |
|
|
485 sigset_t ss; |
|
|
486 struct sigaction sa; |
|
|
487 sigemptyset(&ss); sigsuspend(&ss); |
|
|
488 sigaction(SIGINT, &sa, (struct sigaction *) 0); |
|
|
489 sigprocmask(SIG_BLOCK, &ss, (sigset_t *) 0); |
|
|
490 ], octave_cv_signal_vintage=posix, |
|
|
491 [ |
|
|
492 AC_TRY_LINK([#include <signal.h>], [ |
|
|
493 int mask = sigmask(SIGINT); |
|
|
494 sigsetmask(mask); sigblock(mask); sigpause(mask); |
|
|
495 ], octave_cv_signal_vintage=4.2bsd, |
|
|
496 [ |
|
|
497 AC_TRY_LINK([ |
|
|
498 #include <signal.h> |
|
|
499 RETSIGTYPE foo() { }], [ |
|
|
500 int mask = sigmask(SIGINT); |
|
|
501 sigset(SIGINT, foo); sigrelse(SIGINT); |
|
|
502 sighold(SIGINT); sigpause(SIGINT); |
|
2491
|
503 ], octave_cv_signal_vintage=svr3, octave_cv_signal_vintage=v7 |
|
2469
|
504 )] |
|
|
505 )] |
|
|
506 ) |
|
|
507 ]) |
|
|
508 AC_MSG_RESULT($octave_cv_signal_vintage) |
|
2491
|
509 if test "$octave_cv_signal_vintage" = posix; then |
|
2469
|
510 AC_DEFINE(HAVE_POSIX_SIGNALS) |
|
2491
|
511 elif test "$octave_cv_signal_vintage" = "4.2bsd"; then |
|
2469
|
512 AC_DEFINE(HAVE_BSD_SIGNALS) |
|
2491
|
513 elif test "$octave_cv_signal_vintage" = svr3; then |
|
2469
|
514 AC_DEFINE(HAVE_USG_SIGHOLD) |
|
|
515 fi |
|
|
516 ]) |
|
|
517 dnl |
|
|
518 AC_DEFUN(OCTAVE_REINSTALL_SIGHANDLERS, |
|
|
519 [AC_REQUIRE([AC_TYPE_SIGNAL]) |
|
|
520 AC_REQUIRE([OCTAVE_SIGNAL_CHECK]) |
|
|
521 AC_MSG_CHECKING([if signal handlers must be reinstalled when invoked]) |
|
|
522 AC_CACHE_VAL(octave_cv_must_reinstall_sighandlers, |
|
|
523 [AC_TRY_RUN([ |
|
|
524 #include <signal.h> |
|
|
525 #ifdef HAVE_UNISTD_H |
|
|
526 #include <unistd.h> |
|
|
527 #endif |
|
|
528 typedef RETSIGTYPE sigfunc(); |
|
|
529 int nsigint; |
|
|
530 #ifdef HAVE_POSIX_SIGNALS |
|
|
531 sigfunc * |
|
|
532 set_signal_handler(sig, handler) |
|
|
533 int sig; |
|
|
534 sigfunc *handler; |
|
|
535 { |
|
|
536 struct sigaction act, oact; |
|
|
537 act.sa_handler = handler; |
|
|
538 act.sa_flags = 0; |
|
|
539 sigemptyset (&act.sa_mask); |
|
|
540 sigemptyset (&oact.sa_mask); |
|
|
541 sigaction (sig, &act, &oact); |
|
|
542 return (oact.sa_handler); |
|
|
543 } |
|
|
544 #else |
|
|
545 #define set_signal_handler(s, h) signal(s, h) |
|
|
546 #endif |
|
|
547 RETSIGTYPE |
|
|
548 sigint(s) |
|
|
549 int s; |
|
|
550 { |
|
|
551 nsigint++; |
|
|
552 } |
|
|
553 main() |
|
|
554 { |
|
|
555 nsigint = 0; |
|
|
556 set_signal_handler(SIGINT, sigint); |
|
|
557 kill((int)getpid(), SIGINT); |
|
|
558 kill((int)getpid(), SIGINT); |
|
|
559 exit(nsigint != 2); |
|
|
560 } |
|
|
561 ], octave_cv_must_reinstall_sighandlers=no, octave_cv_must_reinstall_sighandlers=yes, |
|
|
562 AC_MSG_ERROR(cannot check signal handling if cross compiling))]) |
|
|
563 AC_MSG_RESULT($octave_cv_must_reinstall_sighandlers) |
|
2491
|
564 if test "$octave_cv_must_reinstall_sighandlers" = yes; then |
|
2469
|
565 AC_DEFINE(MUST_REINSTALL_SIGHANDLERS) |
|
|
566 fi |
|
|
567 ]) |
|
2626
|
568 dnl |
|
|
569 dnl This check originally from bash 2.0. |
|
|
570 dnl |
|
|
571 dnl Check for typedef'd symbols in header files, but allow the caller to |
|
|
572 dnl specify the include files to be checked in addition to the default. |
|
|
573 dnl |
|
|
574 dnl OCTAVE_CHECK_TYPE(TYPE, HEADERS, DEFAULT[, VALUE-IF-FOUND]) |
|
|
575 AC_DEFUN(OCTAVE_CHECK_TYPE, |
|
|
576 [AC_REQUIRE([AC_HEADER_STDC])dnl |
|
|
577 AC_MSG_CHECKING(for $1) |
|
|
578 AC_CACHE_VAL(octave_cv_type_$1, |
|
|
579 [AC_EGREP_CPP($1, [#include <sys/types.h> |
|
|
580 #if STDC_HEADERS |
|
|
581 #include <stdlib.h> |
|
|
582 #endif |
|
|
583 $2 |
|
|
584 ], octave_cv_type_$1=yes, octave_cv_type_$1=no)]) |
|
|
585 AC_MSG_RESULT($octave_cv_type_$1) |
|
|
586 ifelse($#, 4, [if test $octave_cv_type_$1 = yes; then |
|
|
587 AC_DEFINE($4) |
|
|
588 fi]) |
|
|
589 if test $octave_cv_type_$1 = no; then |
|
|
590 AC_DEFINE($1, $3) |
|
|
591 fi |
|
|
592 ]) |
