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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, 1997 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 ---------------------------------------------------------------------- |
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23 dnl |
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24 dnl Figure out the hardware-vendor-os info. |
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25 dnl |
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26 dnl OCTAVE_HOST_TYPE |
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27 AC_DEFUN(OCTAVE_HOST_TYPE, |
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28 [AC_CANONICAL_HOST |
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29 if test -z "$host"; then |
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30 host=unknown |
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31 fi |
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32 target_host_type=$host |
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33 canonical_host_type=$host |
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34 if test "$host" = unknown; then |
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35 AC_MSG_WARN([configuring Octave for unknown system type |
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36 ]) |
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37 fi |
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38 AC_SUBST(target_host_type)]) |
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39 dnl |
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40 dnl Set default value for a variable and substitute it. |
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41 dnl |
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42 dnl OCTAVE_SET_DEFAULT |
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43 AC_DEFUN(OCTAVE_SET_DEFAULT, |
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44 [ifelse($#, 2, [$1=$2 |
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45 ])dnl |
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46 AC_MSG_RESULT([defining $1 to be $$1]) |
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47 AC_SUBST($1)]) |
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48 dnl |
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49 dnl |
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50 dnl OCTAVE_CHECK_EXCLUSIVE_WITH_OPTIONS |
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51 AC_DEFUN(OCTAVE_CHECK_EXCLUSIVE_WITH_OPTIONS, |
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52 [if test "${with_$1+set}" = set; then |
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53 if test "${with_$2+set}" = set; then |
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54 if test "$with_$2" = no; then |
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55 true |
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56 else |
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57 $3 |
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58 fi |
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59 fi |
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60 fi]) |
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61 dnl |
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62 dnl See what libraries are used by the Fortran compiler. |
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63 dnl |
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64 dnl Write a minimal program and compile it with -v. I don't know what |
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65 dnl to do if your compiler doesn't have -v... |
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66 dnl |
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67 dnl OCTAVE_FLIBS() |
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68 AC_DEFUN(OCTAVE_FLIBS, |
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69 [AC_MSG_CHECKING([for Fortran libraries]) |
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70 AC_REQUIRE([OCTAVE_HOST_TYPE]) |
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71 AC_CACHE_VAL(octave_cv_flibs, |
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72 [changequote(, )dnl |
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73 echo " END" > conftest.f |
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74 foutput=`${F77-f77} -v -o conftest conftest.f 2>&1` |
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75 dnl |
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76 dnl The easiest thing to do for xlf output is to replace all the commas |
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77 dnl with spaces. Try to only do that if the output is really from xlf, |
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78 dnl since doing that causes problems on other systems. |
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79 dnl |
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80 xlf_p=`echo $foutput | grep xlfentry` |
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81 if test -n "$xlf_p"; then |
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82 foutput=`echo $foutput | sed 's/,/ /g'` |
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83 fi |
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84 dnl |
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85 ld_run_path=`echo $foutput | \ |
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86 sed -n -e 's/^.*LD_RUN_PATH *= *\([^ ]*\).*/\1/p'` |
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87 dnl |
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88 dnl We are only supposed to find this on Solaris systems, and this |
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89 dnl substitution is probably only going to work with gcc on those |
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90 dnl systems... |
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91 dnl |
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92 if test -n "$ld_run_path"; then |
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93 if test "$ac_cv_prog_gcc" = yes; then |
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94 ld_run_path="-Xlinker -R -Xlinker $ld_run_path" |
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95 else |
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96 ld_run_path="-R $ld_run_path" |
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97 fi |
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98 fi |
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99 dnl |
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100 flibs= |
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101 lflags= |
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102 dnl |
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103 dnl If want_arg is set, we know we want the arg to be added to the list, |
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104 dnl so we don't have to examine it. |
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105 dnl |
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106 want_arg= |
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107 dnl |
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108 for arg in $foutput; do |
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109 old_want_arg=$want_arg |
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110 want_arg= |
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111 case "$old_want_arg" in |
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112 '') |
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113 case $arg in |
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114 /*.a) |
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115 exists=false |
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116 for f in $lflags; do |
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117 if test x$arg = x$f; then |
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118 exists=true |
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119 fi |
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120 done |
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121 if $exists; then |
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122 arg= |
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123 else |
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124 lflags="$lflags $arg" |
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125 fi |
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126 ;; |
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127 -bI:*) |
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128 exists=false |
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129 for f in $lflags; do |
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130 if test x$arg = x$f; then |
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131 exists=true |
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132 fi |
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133 done |
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134 if $exists; then |
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135 arg= |
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136 else |
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137 if test "$ac_cv_prog_gcc" = yes; then |
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138 lflags="$lflags -Xlinker $arg" |
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139 else |
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140 lflags="$lflags $arg" |
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141 fi |
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142 fi |
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143 ;; |
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144 -lang*) |
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145 arg= |
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146 ;; |
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147 -[lLR]) |
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148 want_arg=$arg |
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149 arg= |
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150 ;; |
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151 -[lLR]*) |
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152 exists=false |
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153 for f in $lflags; do |
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154 if test x$arg = x$f; then |
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155 exists=true |
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156 fi |
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157 done |
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158 if $exists |
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159 arg= |
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160 else |
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161 case "$arg" in |
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162 -lkernel32) |
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163 case "$canonical_host_type" in |
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164 *-*-cygwin32) |
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165 ;; |
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166 *) |
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167 lflags="$lflags $arg" |
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168 ;; |
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169 esac |
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170 ;; |
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171 -lm | -lc) |
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172 ;; |
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173 *) |
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174 lflags="$lflags $arg" |
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175 ;; |
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176 esac |
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177 fi |
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178 ;; |
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179 -u) |
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180 want_arg=$arg |
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181 ;; |
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182 -Y) |
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183 want_arg=$arg |
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184 arg= |
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185 ;; |
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186 *) |
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187 arg= |
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188 ;; |
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189 esac |
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190 ;; |
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191 -[lLR]) |
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192 arg="$old_want_arg $arg" |
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193 ;; |
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194 -Y) |
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195 dnl |
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196 dnl Should probably try to ensure unique directory options here too. |
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197 dnl This probably only applies to Solaris systems, and then will only |
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198 dnl work with gcc... |
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199 dnl |
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200 arg=`echo $arg | sed -e 's%^P,%%'` |
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201 SAVE_IFS=$IFS |
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202 IFS=: |
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203 list= |
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204 for elt in $arg; do |
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205 list="$list -L$elt" |
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206 done |
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207 IFS=$SAVE_IFS |
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208 arg="$list" |
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209 ;; |
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210 esac |
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211 dnl |
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212 if test -n "$arg"; then |
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213 flibs="$flibs $arg" |
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214 fi |
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215 done |
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216 if test -n "$ld_run_path"; then |
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217 flibs_result="$ld_run_path $flibs" |
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218 else |
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219 flibs_result="$flibs" |
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220 fi |
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221 changequote([, ])dnl |
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222 octave_cv_flibs="$flibs_result"]) |
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223 FLIBS="$octave_cv_flibs" |
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224 AC_MSG_RESULT([$FLIBS])]) |
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225 dnl |
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226 dnl See if the Fortran compiler uses uppercase external names. |
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227 dnl |
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228 dnl OCTAVE_F77_UPPERCASE_NAMES() |
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229 AC_DEFUN(OCTAVE_F77_UPPERCASE_NAMES, |
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230 [AC_MSG_CHECKING([whether $F77 uses uppercase external names]) |
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231 AC_CACHE_VAL(octave_cv_f77_uppercase_names, |
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232 [octave_cv_f77_uppercase_names=no |
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233 cat > conftest.f <<EOF |
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234 subroutine xxyyzz () |
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235 return |
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236 end |
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237 EOF |
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238 if ${F77-f77} -c conftest.f 1>&AC_FD_CC 2>&AC_FD_CC; then |
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239 if test "`${NM-nm} conftest.o | grep XXYYZZ`" != ""; then |
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240 octave_cv_f77_uppercase_names=yes |
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241 fi |
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242 fi]) |
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243 AC_MSG_RESULT([$octave_cv_f77_uppercase_names]) |
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244 if test "$octave_cv_f77_uppercase_names" = yes; then |
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245 AC_DEFINE(F77_UPPERCASE_NAMES, 1) |
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246 fi]) |
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247 dnl |
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248 dnl See if the Fortran compiler appends underscores to external names. |
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249 dnl |
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250 dnl OCTAVE_F77_APPEND_UNDERSCORE() |
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251 AC_DEFUN(OCTAVE_F77_APPEND_UNDERSCORE, |
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252 [AC_MSG_CHECKING([whether $F77 appends underscores to external names]) |
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253 AC_REQUIRE([OCTAVE_F77_UPPERCASE_NAMES]) |
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254 AC_CACHE_VAL(octave_cv_f77_append_underscore, |
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255 [octave_cv_f77_append_underscore=no |
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256 cat > conftest.f <<EOF |
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257 subroutine xxyyzz () |
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258 return |
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259 end |
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260 EOF |
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261 if ${F77-f77} -c conftest.f 1>&AC_FD_CC 2>&AC_FD_CC; then |
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262 if test "$octave_cv_f77_uppercase_names" = yes; then |
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263 if test "`${NM-nm} conftest.o | grep XXYYZZ_`" != ""; then |
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264 octave_cv_f77_append_underscore=yes |
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265 fi |
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266 else |
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267 if test "`${NM-nm} conftest.o | grep xxyyzz_`" != ""; then |
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268 octave_cv_f77_append_underscore=yes |
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269 fi |
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270 fi |
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271 fi]) |
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272 AC_MSG_RESULT([$octave_cv_f77_append_underscore]) |
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273 if test "$octave_cv_f77_append_underscore" = yes; then |
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274 AC_DEFINE(F77_APPEND_UNDERSCORE, 1) |
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275 fi]) |
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276 dnl |
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277 dnl See if the Fortran compiler is compatible with f2c. |
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278 dnl |
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279 dnl Write a minimal program, compile it, and see if it works as |
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280 dnl expected. |
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281 dnl |
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282 dnl OCTAVE_F2C_F77_COMPAT() |
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283 AC_DEFUN(OCTAVE_F2C_F77_COMPAT, |
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284 [AC_REQUIRE([OCTAVE_FLIBS]) |
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285 AC_REQUIRE([OCTAVE_F77_APPEND_UNDERSCORE]) |
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286 AC_MSG_CHECKING([$F77/f2c compatibility]) |
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287 AC_CACHE_VAL(octave_cv_f2c_f77_compat, |
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288 [trap 'rm -f ftest* ctest* core; exit 1' 1 3 15 |
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289 octave_cv_f2c_f77_compat=no |
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290 cat > ftest.f <<EOF |
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291 INTEGER FUNCTION FORSUB (C, D) |
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292 CHARACTER *(*) C |
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293 INTEGER L |
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294 DOUBLE PRECISION D |
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295 L = LEN (C) |
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296 WRITE (*, '(A,1X,I2)') C(1:L), INT (D) |
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297 FORSUB = 1 |
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298 RETURN |
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299 END |
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300 EOF |
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301 ${F77-f77} -c ftest.f 1>&AC_FD_CC 2>&AC_FD_CC |
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302 dnl |
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303 changequote(, ) |
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304 cat > ctest.c <<EOF |
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305 #include "confdefs.h" |
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306 static char s[14]; |
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307 int main () |
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308 { |
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309 double d = 10.0; |
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310 int len; |
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311 strcpy (s, "FOO-I-HITHERE"); |
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312 len = strlen (s); |
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313 #ifdef F77_APPEND_UNDERSCORE |
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314 return (! forsub_ (s, &d, len)); |
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315 #else |
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316 return (! forsub (s, &d, len)); |
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317 #endif |
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318 } |
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319 #if defined (sun) |
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320 int MAIN_ () { return 0; } |
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321 #elif defined (linux) && defined (__ELF__) |
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322 int MAIN__ () { return 0; } |
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323 #endif |
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324 EOF |
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325 changequote([, ]) |
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326 dnl |
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327 if ${CC-cc} -c ctest.c 1>&AC_FD_CC 2>&AC_FD_CC; then |
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328 if ${CC-cc} -o ctest ctest.o ftest.o $FLIBS -lm 1>&AC_FD_CC 2>&AC_FD_CC; then |
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329 ctest_output=`./ctest 2>&1` |
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330 status=$? |
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331 if test $status -eq 0 && test "$ctest_output" = "FOO-I-HITHERE 10"; then |
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332 octave_cv_f2c_f77_compat=yes |
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333 fi |
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334 fi |
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335 fi]) |
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336 rm -f ftest* ctest* core |
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337 AC_MSG_RESULT([$octave_cv_f2c_f77_compat])]) |
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338 dnl |
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339 dnl See if struct group has a gr_passwd field. |
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340 dnl |
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341 AC_DEFUN(OCTAVE_STRUCT_GR_PASSWD, |
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342 [AC_CACHE_CHECK([for gr_passwd in struct group], octave_cv_struct_gr_passwd, |
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343 [AC_TRY_COMPILE([#include <sys/types.h> |
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344 #include <grp.h>], [struct group s; s.gr_passwd;], |
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345 octave_cv_struct_gr_passwd=yes, octave_cv_struct_gr_passwd=no)]) |
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346 if test $octave_cv_struct_gr_passwd = yes; then |
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347 AC_DEFINE(HAVE_GR_PASSWD) |
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348 fi |
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349 ]) |
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350 dnl |
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351 dnl See if the standard string class has npos as a member. |
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352 dnl |
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353 AC_DEFUN(OCTAVE_STRING_NPOS, |
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354 [AC_CACHE_CHECK([whether including <string> defines NPOS], |
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355 octave_cv_string_npos, |
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356 [AC_LANG_SAVE |
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357 AC_LANG_CPLUSPLUS |
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358 AC_TRY_COMPILE([#include <string>], |
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359 [size_t foo = NPOS], |
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360 octave_cv_string_npos=yes, octave_cv_string_npos=no)]) |
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361 if test $octave_cv_string_npos = no; then |
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362 AC_DEFINE(NPOS, string::npos) |
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363 fi |
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364 AC_LANG_RESTORE |
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365 ]) |
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366 dnl |
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367 dnl The following test is from Karl Berry's Kpathseach library. I'm |
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368 dnl including it here in case we someday want to make the use of |
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369 dnl kpathsea optional. |
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370 dnl |
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371 dnl Some BSD putenv's, e.g., FreeBSD, do malloc/free's on the environment. |
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372 dnl This test program is due to Mike Hibler <mike@cs.utah.edu>. |
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373 dnl We don't actually need to run this if we don't have putenv, but it |
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374 dnl doesn't hurt. |
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375 AC_DEFUN(OCTAVE_SMART_PUTENV, |
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376 [AC_MSG_CHECKING(whether putenv uses malloc) |
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377 AC_CACHE_VAL(octave_cv_func_putenv_malloc, |
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378 [AC_TRY_RUN([ |
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379 #define VAR "YOW_VAR" |
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380 #define STRING1 "GabbaGabbaHey" |
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381 #define STRING2 "Yow!!" /* should be shorter than STRING1 */ |
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382 extern char *getenv (); /* in case char* and int don't mix gracefully */ |
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383 main () |
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384 { |
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385 char *str1, *rstr1, *str2, *rstr2; |
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386 str1 = getenv (VAR); |
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387 if (str1) |
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388 exit (1); |
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389 str1 = malloc (strlen (VAR) + 1 + strlen (STRING1) + 1); |
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390 if (str1 == 0) |
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391 exit (2); |
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392 strcpy (str1, VAR); |
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393 strcat (str1, "="); |
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394 strcat (str1, STRING1); |
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395 if (putenv (str1) < 0) |
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396 exit (3); |
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397 rstr1 = getenv (VAR); |
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398 if (rstr1 == 0) |
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399 exit (4); |
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400 rstr1 -= strlen (VAR) + 1; |
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401 if (strncmp (rstr1, VAR, strlen (VAR))) |
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402 exit (5); |
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403 str2 = malloc (strlen (VAR) + 1 + strlen (STRING2) + 1); |
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404 if (str2 == 0 || str1 == str2) |
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405 exit (6); |
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406 strcpy (str2, VAR); |
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407 strcat (str2, "="); |
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408 strcat (str2, STRING2); |
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409 if (putenv (str2) < 0) |
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410 exit (7); |
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411 rstr2 = getenv (VAR); |
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412 if (rstr2 == 0) |
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413 exit (8); |
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414 rstr2 -= strlen (VAR) + 1; |
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415 #if 0 |
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416 printf ("rstr1=0x%x, rstr2=0x%x\n", rstr1, rstr2); |
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417 /* |
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418 * If string from first call was reused for the second call, |
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419 * you had better not do a free on the first string! |
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420 */ |
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421 if (rstr1 == rstr2) |
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422 printf ("#define SMART_PUTENV\n"); |
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423 else |
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424 printf ("#undef SMART_PUTENV\n"); |
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425 #endif |
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426 exit (rstr1 == rstr2 ? 0 : 1); |
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427 }], octave_cv_func_putenv_malloc=yes, octave_cv_func_putenv_malloc=no, |
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428 octave_cv_func_putenv_malloc=no)])dnl |
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429 AC_MSG_RESULT($octave_cv_func_putenv_malloc) |
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430 if test $octave_cv_func_putenv_malloc = yes; then |
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431 AC_DEFINE(SMART_PUTENV) |
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1708
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432 fi]) |
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1788
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433 dnl |
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434 dnl This is a GNU libc invention, and this check is also from Karl |
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435 dnl Berry's kpathsea library. |
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436 dnl |
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437 AC_DEFUN(OCTAVE_PROGRAM_INVOCATION_NAME, |
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438 [AC_MSG_CHECKING(whether program_invocation_name is predefined) |
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439 AC_CACHE_VAL(octave_cv_var_program_inv_name, |
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440 [AC_TRY_LINK(, [main() { program_invocation_name = "love"; }], |
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441 octave_cv_var_program_inv_name=yes, octave_cv_var_program_inv_name=no)])dnl |
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442 AC_MSG_RESULT($octave_cv_var_program_inv_name) |
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443 if test $octave_cv_var_program_inv_name = yes; then |
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444 AC_DEFINE(HAVE_PROGRAM_INVOCATION_NAME) |
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445 fi]) |
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2469
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446 dnl |
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447 dnl These two checks for signal functions were originally part of the |
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448 dnl aclocal.m4 file distributed with bash 2.0. |
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449 dnl |
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450 dnl Check type of signal routines (posix, 4.2bsd, 4.1bsd or v7) |
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451 AC_DEFUN(OCTAVE_SIGNAL_CHECK, |
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452 [AC_REQUIRE([AC_TYPE_SIGNAL]) |
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453 AC_MSG_CHECKING(for type of signal functions) |
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454 AC_CACHE_VAL(octave_cv_signal_vintage, |
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455 [ |
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456 AC_TRY_LINK([#include <signal.h>],[ |
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457 sigset_t ss; |
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458 struct sigaction sa; |
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459 sigemptyset(&ss); sigsuspend(&ss); |
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460 sigaction(SIGINT, &sa, (struct sigaction *) 0); |
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461 sigprocmask(SIG_BLOCK, &ss, (sigset_t *) 0); |
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462 ], octave_cv_signal_vintage=posix, |
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463 [ |
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464 AC_TRY_LINK([#include <signal.h>], [ |
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465 int mask = sigmask(SIGINT); |
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466 sigsetmask(mask); sigblock(mask); sigpause(mask); |
|
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467 ], octave_cv_signal_vintage=4.2bsd, |
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468 [ |
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469 AC_TRY_LINK([ |
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470 #include <signal.h> |
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471 RETSIGTYPE foo() { }], [ |
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472 int mask = sigmask(SIGINT); |
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473 sigset(SIGINT, foo); sigrelse(SIGINT); |
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474 sighold(SIGINT); sigpause(SIGINT); |
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2491
|
475 ], octave_cv_signal_vintage=svr3, octave_cv_signal_vintage=v7 |
|
2469
|
476 )] |
|
|
477 )] |
|
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478 ) |
|
|
479 ]) |
|
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480 AC_MSG_RESULT($octave_cv_signal_vintage) |
|
2491
|
481 if test "$octave_cv_signal_vintage" = posix; then |
|
2469
|
482 AC_DEFINE(HAVE_POSIX_SIGNALS) |
|
2491
|
483 elif test "$octave_cv_signal_vintage" = "4.2bsd"; then |
|
2469
|
484 AC_DEFINE(HAVE_BSD_SIGNALS) |
|
2491
|
485 elif test "$octave_cv_signal_vintage" = svr3; then |
|
2469
|
486 AC_DEFINE(HAVE_USG_SIGHOLD) |
|
|
487 fi |
|
|
488 ]) |
|
|
489 dnl |
|
|
490 AC_DEFUN(OCTAVE_REINSTALL_SIGHANDLERS, |
|
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491 [AC_REQUIRE([AC_TYPE_SIGNAL]) |
|
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492 AC_REQUIRE([OCTAVE_SIGNAL_CHECK]) |
|
|
493 AC_MSG_CHECKING([if signal handlers must be reinstalled when invoked]) |
|
|
494 AC_CACHE_VAL(octave_cv_must_reinstall_sighandlers, |
|
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495 [AC_TRY_RUN([ |
|
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496 #include <signal.h> |
|
|
497 #ifdef HAVE_UNISTD_H |
|
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498 #include <unistd.h> |
|
|
499 #endif |
|
|
500 typedef RETSIGTYPE sigfunc(); |
|
|
501 int nsigint; |
|
|
502 #ifdef HAVE_POSIX_SIGNALS |
|
|
503 sigfunc * |
|
|
504 set_signal_handler(sig, handler) |
|
|
505 int sig; |
|
|
506 sigfunc *handler; |
|
|
507 { |
|
|
508 struct sigaction act, oact; |
|
|
509 act.sa_handler = handler; |
|
|
510 act.sa_flags = 0; |
|
|
511 sigemptyset (&act.sa_mask); |
|
|
512 sigemptyset (&oact.sa_mask); |
|
|
513 sigaction (sig, &act, &oact); |
|
|
514 return (oact.sa_handler); |
|
|
515 } |
|
|
516 #else |
|
|
517 #define set_signal_handler(s, h) signal(s, h) |
|
|
518 #endif |
|
|
519 RETSIGTYPE |
|
|
520 sigint(s) |
|
|
521 int s; |
|
|
522 { |
|
|
523 nsigint++; |
|
|
524 } |
|
|
525 main() |
|
|
526 { |
|
|
527 nsigint = 0; |
|
|
528 set_signal_handler(SIGINT, sigint); |
|
|
529 kill((int)getpid(), SIGINT); |
|
|
530 kill((int)getpid(), SIGINT); |
|
|
531 exit(nsigint != 2); |
|
|
532 } |
|
|
533 ], octave_cv_must_reinstall_sighandlers=no, octave_cv_must_reinstall_sighandlers=yes, |
|
|
534 AC_MSG_ERROR(cannot check signal handling if cross compiling))]) |
|
|
535 AC_MSG_RESULT($octave_cv_must_reinstall_sighandlers) |
|
2491
|
536 if test "$octave_cv_must_reinstall_sighandlers" = yes; then |
|
2469
|
537 AC_DEFINE(MUST_REINSTALL_SIGHANDLERS) |
|
|
538 fi |
|
|
539 ]) |
|
2626
|
540 dnl |
|
|
541 dnl This check originally from bash 2.0. |
|
|
542 dnl |
|
|
543 dnl Check for typedef'd symbols in header files, but allow the caller to |
|
|
544 dnl specify the include files to be checked in addition to the default. |
|
|
545 dnl |
|
|
546 dnl OCTAVE_CHECK_TYPE(TYPE, HEADERS, DEFAULT[, VALUE-IF-FOUND]) |
|
|
547 AC_DEFUN(OCTAVE_CHECK_TYPE, |
|
|
548 [AC_REQUIRE([AC_HEADER_STDC])dnl |
|
|
549 AC_MSG_CHECKING(for $1) |
|
|
550 AC_CACHE_VAL(octave_cv_type_$1, |
|
|
551 [AC_EGREP_CPP($1, [#include <sys/types.h> |
|
|
552 #if STDC_HEADERS |
|
|
553 #include <stdlib.h> |
|
|
554 #endif |
|
|
555 $2 |
|
|
556 ], octave_cv_type_$1=yes, octave_cv_type_$1=no)]) |
|
|
557 AC_MSG_RESULT($octave_cv_type_$1) |
|
|
558 ifelse($#, 4, [if test $octave_cv_type_$1 = yes; then |
|
|
559 AC_DEFINE($4) |
|
|
560 fi]) |
|
|
561 if test $octave_cv_type_$1 = no; then |
|
|
562 AC_DEFINE($1, $3) |
|
|
563 fi |
|
|
564 ]) |
