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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 "$host"; then |
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30 host=unknown |
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31 fi |
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32 canonical_host_type=$host |
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33 if test "$host" = unknown; then |
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34 AC_MSG_WARN([configuring Octave for unknown system type |
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35 ]) |
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36 fi |
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37 AC_SUBST(canonical_host_type)]) |
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38 dnl |
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39 dnl Set default value for a variable and substitute it. |
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40 dnl |
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41 dnl OCTAVE_SET_DEFAULT |
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42 AC_DEFUN(OCTAVE_SET_DEFAULT, |
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43 [ifelse($#, 2, [: ${$1=$2} |
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44 ])dnl |
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45 AC_MSG_RESULT([defining $1 to be $$1]) |
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46 AC_SUBST($1)]) |
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47 dnl |
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48 dnl |
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49 dnl OCTAVE_CHECK_EXCLUSIVE_WITH_OPTIONS |
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50 AC_DEFUN(OCTAVE_CHECK_EXCLUSIVE_WITH_OPTIONS, |
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51 [if test "${with_$1+set}" = set; then |
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52 if test "${with_$2+set}" = set; then |
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53 if test "$with_$2" = no; then |
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54 true |
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55 else |
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56 $3 |
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57 fi |
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58 fi |
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59 fi]) |
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60 dnl |
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3130
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61 dnl Check for ar. |
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62 dnl |
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63 AC_DEFUN(OCTAVE_PROG_AR, |
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64 [if test -z "$AR"; then |
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65 AR=ar |
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66 fi |
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67 AC_SUBST(AR) |
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68 |
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69 if test -z "$ARFLAGS"; then |
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70 ARFLAGS="rc" |
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71 fi |
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72 AC_SUBST(ARFLAGS) |
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73 ]) |
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74 dnl |
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75 dnl See if $F77 is the GNU Fortran compiler |
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76 dnl |
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77 AC_DEFUN(OCTAVE_PROG_G77, |
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78 [AC_CACHE_CHECK([whether ${F77-f77} is the GNU Fortran compiler], |
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79 octave_cv_f77_is_g77, |
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80 [if $use_g77; then |
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81 octave_cv_f77_is_g77=yes |
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82 else |
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83 echo " END" > conftest.f |
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84 foutput=`${F77-f77} -v conftest.f 2>&1 | egrep "GNU F77|FSF-g77"` |
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85 if test -n "$foutput"; then |
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86 octave_cv_f77_is_g77=yes |
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87 else |
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88 octave_cv_f77_is_g77=no |
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89 fi |
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90 fi]) |
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91 ]) |
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92 dnl |
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93 dnl See what libraries are used by the Fortran compiler. |
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94 dnl |
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95 dnl Write a minimal program and compile it with -v. I don't know what |
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96 dnl to do if your compiler doesn't have -v... |
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97 dnl |
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98 dnl OCTAVE_FLIBS() |
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99 AC_DEFUN(OCTAVE_FLIBS, |
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100 [AC_MSG_CHECKING([for Fortran libraries]) |
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101 AC_REQUIRE([OCTAVE_HOST_TYPE]) |
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102 AC_CACHE_VAL(octave_cv_flibs, |
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103 [changequote(, )dnl |
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104 echo " END" > conftest.f |
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105 foutput=`${F77-f77} -v -o conftest conftest.f 2>&1` |
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106 dnl |
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107 dnl The easiest thing to do for xlf output is to replace all the commas |
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108 dnl with spaces. Try to only do that if the output is really from xlf, |
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109 dnl since doing that causes problems on other systems. |
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110 dnl |
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111 xlf_p=`echo $foutput | grep xlfentry` |
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112 if test -n "$xlf_p"; then |
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113 foutput=`echo $foutput | sed 's/,/ /g'` |
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114 fi |
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115 dnl |
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116 ld_run_path=`echo $foutput | \ |
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117 sed -n -e 's/^.*LD_RUN_PATH *= *\([^ ]*\).*/\1/p'` |
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118 dnl |
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119 dnl We are only supposed to find this on Solaris systems... |
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120 dnl Uh, the run path should be absolute, shouldn't it? |
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121 dnl |
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122 case "$ld_run_path" in |
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123 /*) |
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124 if test "$ac_cv_prog_gcc" = yes; then |
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125 ld_run_path="-Xlinker -R -Xlinker $ld_run_path" |
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126 else |
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127 ld_run_path="-R $ld_run_path" |
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128 fi |
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129 ;; |
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130 *) |
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131 ld_run_path= |
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132 ;; |
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133 esac |
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134 dnl |
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135 flibs= |
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136 lflags= |
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137 dnl |
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138 dnl If want_arg is set, we know we want the arg to be added to the list, |
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139 dnl so we don't have to examine it. |
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140 dnl |
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141 want_arg= |
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142 dnl |
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143 for arg in $foutput; do |
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144 old_want_arg=$want_arg |
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145 want_arg= |
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146 dnl |
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147 dnl None of the options that take arguments expect the argument to |
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148 dnl start with a -, so pretend we didn't see anything special. |
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149 dnl |
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150 if test -n "$old_want_arg"; then |
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151 case "$arg" in |
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152 -*) |
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153 old_want_arg= |
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154 ;; |
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155 esac |
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156 fi |
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157 case "$old_want_arg" in |
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158 '') |
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159 case $arg in |
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160 /*.a) |
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161 exists=false |
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162 for f in $lflags; do |
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163 if test x$arg = x$f; then |
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164 exists=true |
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165 fi |
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166 done |
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167 if $exists; then |
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168 arg= |
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169 else |
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170 lflags="$lflags $arg" |
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171 fi |
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172 ;; |
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173 -bI:*) |
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174 exists=false |
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175 for f in $lflags; do |
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176 if test x$arg = x$f; then |
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177 exists=true |
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178 fi |
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179 done |
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180 if $exists; then |
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181 arg= |
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182 else |
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183 if test "$ac_cv_prog_gcc" = yes; then |
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184 lflags="$lflags -Xlinker $arg" |
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185 else |
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186 lflags="$lflags $arg" |
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187 fi |
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188 fi |
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189 ;; |
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190 -lang* | -lcrt0.o | -lc | -lgcc) |
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191 arg= |
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192 ;; |
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193 -[lLR]) |
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194 want_arg=$arg |
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195 arg= |
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196 ;; |
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197 -[lLR]*) |
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198 exists=false |
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199 for f in $lflags; do |
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200 if test x$arg = x$f; then |
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201 exists=true |
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202 fi |
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203 done |
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204 if $exists; then |
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205 arg= |
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206 else |
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207 case "$arg" in |
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208 -lkernel32) |
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209 case "$canonical_host_type" in |
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210 *-*-cygwin32) |
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211 arg= |
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212 ;; |
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213 *) |
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214 lflags="$lflags $arg" |
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215 ;; |
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216 esac |
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217 ;; |
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218 -lm) |
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219 ;; |
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220 *) |
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221 lflags="$lflags $arg" |
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222 ;; |
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223 esac |
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224 fi |
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225 ;; |
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226 -u) |
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227 want_arg=$arg |
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228 arg= |
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229 ;; |
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230 -Y) |
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231 want_arg=$arg |
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232 arg= |
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233 ;; |
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234 *) |
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235 arg= |
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236 ;; |
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237 esac |
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238 ;; |
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239 -[lLR]) |
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240 arg="$old_want_arg $arg" |
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241 ;; |
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242 -u) |
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243 arg="-u $arg" |
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244 ;; |
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245 -Y) |
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246 dnl |
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247 dnl Should probably try to ensure unique directory options here too. |
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248 dnl This probably only applies to Solaris systems, and then will only |
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249 dnl work with gcc... |
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250 dnl |
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251 arg=`echo $arg | sed -e 's%^P,%%'` |
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252 SAVE_IFS=$IFS |
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253 IFS=: |
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254 list= |
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255 for elt in $arg; do |
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256 list="$list -L$elt" |
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257 done |
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258 IFS=$SAVE_IFS |
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259 arg="$list" |
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260 ;; |
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261 esac |
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262 dnl |
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263 if test -n "$arg"; then |
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264 flibs="$flibs $arg" |
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265 fi |
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266 done |
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267 if test -n "$ld_run_path"; then |
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268 flibs_result="$ld_run_path $flibs" |
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269 else |
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270 flibs_result="$flibs" |
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271 fi |
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272 changequote([, ])dnl |
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273 octave_cv_flibs="$flibs_result"]) |
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274 FLIBS="$octave_cv_flibs" |
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275 AC_MSG_RESULT([$FLIBS])]) |
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276 dnl |
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277 dnl This is apparently needed on some Linux systems. |
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278 dnl |
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279 AC_DEFUN(OCTAVE_F77_MAIN_FLAG, |
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280 [FORTRAN_MAIN_FLAG= |
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281 case "$canonical_host_type" in |
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282 *-linux-*) |
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283 FORTRAN_MAIN_FLAG="-u MAIN__" |
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284 ;; |
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285 esac |
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286 if test -n "$FORTRAN_MAIN_FLAG"; then |
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287 AC_MSG_RESULT([defining FORTRAN_MAIN_FLAG to be $FORTRAN_MAIN_FLAG]) |
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288 fi |
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289 AC_SUBST(FORTRAN_MAIN_FLAG) |
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290 ]) |
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291 dnl |
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292 dnl See if the Fortran compiler uses uppercase external names. |
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293 dnl |
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294 dnl OCTAVE_F77_UPPERCASE_NAMES() |
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295 AC_DEFUN(OCTAVE_F77_UPPERCASE_NAMES, |
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296 [AC_MSG_CHECKING([whether ${F77-f77} uses uppercase external names]) |
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297 AC_CACHE_VAL(octave_cv_f77_uppercase_names, |
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298 [octave_cv_f77_uppercase_names=no |
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299 cat > conftest.f <<EOF |
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300 subroutine xxyyzz () |
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301 return |
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302 end |
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303 EOF |
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304 if ${F77-f77} -c conftest.f 1>&AC_FD_CC 2>&AC_FD_CC; then |
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305 if test "`${NM-nm} conftest.o | grep XXYYZZ`" != ""; then |
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306 octave_cv_f77_uppercase_names=yes |
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307 fi |
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308 fi]) |
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309 AC_MSG_RESULT([$octave_cv_f77_uppercase_names]) |
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310 if test "$octave_cv_f77_uppercase_names" = yes; then |
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311 AC_DEFINE(F77_UPPERCASE_NAMES, 1) |
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312 fi]) |
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313 dnl |
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314 dnl See if the Fortran compiler appends underscores to external names. |
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315 dnl |
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316 dnl OCTAVE_F77_APPEND_UNDERSCORE() |
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317 AC_DEFUN(OCTAVE_F77_APPEND_UNDERSCORE, |
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318 [AC_MSG_CHECKING([whether ${F77-f77} appends underscores to external names]) |
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319 AC_REQUIRE([OCTAVE_F77_UPPERCASE_NAMES]) |
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320 AC_CACHE_VAL(octave_cv_f77_append_underscore, |
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321 [octave_cv_f77_append_underscore=no |
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322 cat > conftest.f <<EOF |
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323 subroutine xxyyzz () |
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324 return |
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325 end |
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326 EOF |
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327 if ${F77-f77} -c conftest.f 1>&AC_FD_CC 2>&AC_FD_CC; then |
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328 if test "$octave_cv_f77_uppercase_names" = yes; then |
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329 if test "`${NM-nm} conftest.o | grep XXYYZZ_`" != ""; then |
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330 octave_cv_f77_append_underscore=yes |
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331 fi |
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332 else |
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333 if test "`${NM-nm} conftest.o | grep xxyyzz_`" != ""; then |
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334 octave_cv_f77_append_underscore=yes |
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335 fi |
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336 fi |
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337 fi]) |
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338 AC_MSG_RESULT([$octave_cv_f77_append_underscore]) |
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339 if test "$octave_cv_f77_append_underscore" = yes; then |
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340 AC_DEFINE(F77_APPEND_UNDERSCORE, 1) |
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341 fi]) |
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342 dnl |
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343 dnl See if the Fortran compiler is compatible with f2c. |
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344 dnl |
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345 dnl Write a minimal program, compile it, and see if it works as |
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346 dnl expected. |
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347 dnl |
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348 dnl OCTAVE_F2C_F77_COMPAT() |
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349 AC_DEFUN(OCTAVE_F2C_F77_COMPAT, |
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350 [AC_REQUIRE([OCTAVE_PROG_G77]) |
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351 AC_REQUIRE([OCTAVE_FLIBS]) |
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352 AC_REQUIRE([OCTAVE_F77_APPEND_UNDERSCORE]) |
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353 if test "$cross_compiling" = yes; then |
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354 octave_cv_f2c_f77_compat=yes |
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355 if test "$octave_cv_f77_is_g77" = yes; then |
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356 AC_MSG_RESULT([assuming ${F77-f77} cross compiler is f2c compatible]) |
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357 else |
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358 AC_MSG_WARN([assuming ${F77-f77} cross compiler is f2c compatible]) |
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359 fi |
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360 else |
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361 AC_CACHE_CHECK([${F77-f77}/f2c compatibility], octave_cv_f2c_f77_compat, |
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362 [trap 'rm -f ftest* ctest* core; exit 1' 1 3 15 |
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363 octave_cv_f2c_f77_compat=no |
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364 cat > ftest.f <<EOF |
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365 SUBROUTINE FORSUB (C, I, D) |
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366 CHARACTER *(*) C |
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367 INTEGER L, I |
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368 DOUBLE PRECISION D |
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369 L = LEN (C) |
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370 WRITE (*, '(A,1X,I2)') C(1:L), INT (D) |
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371 I = 0 |
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372 RETURN |
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373 END |
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374 EOF |
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375 ${F77-f77} -c ftest.f 1>&AC_FD_CC 2>&AC_FD_CC |
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376 changequote(, ) |
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377 cat > ctest.c <<EOF |
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378 #include "confdefs.h" |
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379 #ifdef F77_APPEND_UNDERSCORE |
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380 extern int forsub_ (const char*, int*, double*, long int); |
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381 #else |
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382 extern int forsub (const char*, int*, double*, long int); |
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383 #endif |
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384 static char s[14]; |
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385 int main () |
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386 { |
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387 double d = 10.0; |
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388 int len, i = 1; |
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389 strcpy (s, "FOO-I-HITHERE"); |
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390 len = strlen (s); |
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391 #ifdef F77_APPEND_UNDERSCORE |
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392 forsub_ (s, &i, &d, len); |
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393 #else |
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394 forsub (s, &i, &d, len); |
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395 #endif |
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396 return i; |
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397 } |
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398 #if defined (sun) |
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399 int MAIN_ () { return 0; } |
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400 #elif defined (linux) && defined (__ELF__) |
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401 int MAIN__ () { return 0; } |
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402 #endif |
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403 EOF |
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404 changequote([, ]) |
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405 if ${CC-cc} -c ctest.c 1>&AC_FD_CC 2>&AC_FD_CC; then |
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406 if ${CC-cc} -o ctest ctest.o ftest.o $FLIBS -lm 1>&AC_FD_CC 2>&AC_FD_CC; then |
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407 ctest_output=`./ctest 2>&1` |
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408 status=$? |
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409 if test $status -eq 0 && test "$ctest_output" = "FOO-I-HITHERE 10"; then |
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410 octave_cv_f2c_f77_compat=yes |
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411 fi |
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412 fi |
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413 fi]) |
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414 fi |
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415 rm -f ftest* ctest* core |
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416 ]) |
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417 dnl |
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418 dnl See if struct group has a gr_passwd field. |
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419 dnl |
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420 AC_DEFUN(OCTAVE_STRUCT_GR_PASSWD, |
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421 [AC_CACHE_CHECK([for gr_passwd in struct group], octave_cv_struct_gr_passwd, |
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422 [AC_TRY_COMPILE([#include <sys/types.h> |
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423 #include <grp.h>], [struct group s; s.gr_passwd;], |
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424 octave_cv_struct_gr_passwd=yes, octave_cv_struct_gr_passwd=no)]) |
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425 if test $octave_cv_struct_gr_passwd = yes; then |
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426 AC_DEFINE(HAVE_GR_PASSWD) |
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427 fi |
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428 ]) |
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429 dnl |
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2574
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430 dnl See if the standard string class has npos as a member. |
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431 dnl |
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|
432 AC_DEFUN(OCTAVE_STRING_NPOS, |
|
|
433 [AC_CACHE_CHECK([whether including <string> defines NPOS], |
|
|
434 octave_cv_string_npos, |
|
|
435 [AC_LANG_SAVE |
|
|
436 AC_LANG_CPLUSPLUS |
|
|
437 AC_TRY_COMPILE([#include <string>], |
|
|
438 [size_t foo = NPOS], |
|
|
439 octave_cv_string_npos=yes, octave_cv_string_npos=no)]) |
|
|
440 if test $octave_cv_string_npos = no; then |
|
3506
|
441 AC_DEFINE(NPOS, std::string::npos) |
|
2574
|
442 fi |
|
|
443 AC_LANG_RESTORE |
|
|
444 ]) |
|
|
445 dnl |
|
1707
|
446 dnl The following test is from Karl Berry's Kpathseach library. I'm |
|
|
447 dnl including it here in case we someday want to make the use of |
|
|
448 dnl kpathsea optional. |
|
1708
|
449 dnl |
|
|
450 dnl Some BSD putenv's, e.g., FreeBSD, do malloc/free's on the environment. |
|
|
451 dnl This test program is due to Mike Hibler <mike@cs.utah.edu>. |
|
|
452 dnl We don't actually need to run this if we don't have putenv, but it |
|
|
453 dnl doesn't hurt. |
|
|
454 AC_DEFUN(OCTAVE_SMART_PUTENV, |
|
|
455 [AC_MSG_CHECKING(whether putenv uses malloc) |
|
1707
|
456 AC_CACHE_VAL(octave_cv_func_putenv_malloc, |
|
|
457 [AC_TRY_RUN([ |
|
|
458 #define VAR "YOW_VAR" |
|
|
459 #define STRING1 "GabbaGabbaHey" |
|
|
460 #define STRING2 "Yow!!" /* should be shorter than STRING1 */ |
|
|
461 extern char *getenv (); /* in case char* and int don't mix gracefully */ |
|
|
462 main () |
|
|
463 { |
|
|
464 char *str1, *rstr1, *str2, *rstr2; |
|
|
465 str1 = getenv (VAR); |
|
|
466 if (str1) |
|
|
467 exit (1); |
|
|
468 str1 = malloc (strlen (VAR) + 1 + strlen (STRING1) + 1); |
|
|
469 if (str1 == 0) |
|
|
470 exit (2); |
|
|
471 strcpy (str1, VAR); |
|
|
472 strcat (str1, "="); |
|
|
473 strcat (str1, STRING1); |
|
|
474 if (putenv (str1) < 0) |
|
|
475 exit (3); |
|
|
476 rstr1 = getenv (VAR); |
|
|
477 if (rstr1 == 0) |
|
|
478 exit (4); |
|
|
479 rstr1 -= strlen (VAR) + 1; |
|
|
480 if (strncmp (rstr1, VAR, strlen (VAR))) |
|
|
481 exit (5); |
|
|
482 str2 = malloc (strlen (VAR) + 1 + strlen (STRING2) + 1); |
|
|
483 if (str2 == 0 || str1 == str2) |
|
|
484 exit (6); |
|
|
485 strcpy (str2, VAR); |
|
|
486 strcat (str2, "="); |
|
|
487 strcat (str2, STRING2); |
|
|
488 if (putenv (str2) < 0) |
|
|
489 exit (7); |
|
|
490 rstr2 = getenv (VAR); |
|
|
491 if (rstr2 == 0) |
|
|
492 exit (8); |
|
|
493 rstr2 -= strlen (VAR) + 1; |
|
|
494 #if 0 |
|
|
495 printf ("rstr1=0x%x, rstr2=0x%x\n", rstr1, rstr2); |
|
|
496 /* |
|
|
497 * If string from first call was reused for the second call, |
|
|
498 * you had better not do a free on the first string! |
|
|
499 */ |
|
|
500 if (rstr1 == rstr2) |
|
|
501 printf ("#define SMART_PUTENV\n"); |
|
|
502 else |
|
|
503 printf ("#undef SMART_PUTENV\n"); |
|
|
504 #endif |
|
|
505 exit (rstr1 == rstr2 ? 0 : 1); |
|
|
506 }], octave_cv_func_putenv_malloc=yes, octave_cv_func_putenv_malloc=no, |
|
|
507 octave_cv_func_putenv_malloc=no)])dnl |
|
|
508 AC_MSG_RESULT($octave_cv_func_putenv_malloc) |
|
|
509 if test $octave_cv_func_putenv_malloc = yes; then |
|
|
510 AC_DEFINE(SMART_PUTENV) |
|
1708
|
511 fi]) |
|
1788
|
512 dnl |
|
2469
|
513 dnl These two checks for signal functions were originally part of the |
|
|
514 dnl aclocal.m4 file distributed with bash 2.0. |
|
|
515 dnl |
|
|
516 dnl Check type of signal routines (posix, 4.2bsd, 4.1bsd or v7) |
|
|
517 AC_DEFUN(OCTAVE_SIGNAL_CHECK, |
|
|
518 [AC_REQUIRE([AC_TYPE_SIGNAL]) |
|
|
519 AC_MSG_CHECKING(for type of signal functions) |
|
|
520 AC_CACHE_VAL(octave_cv_signal_vintage, |
|
|
521 [ |
|
|
522 AC_TRY_LINK([#include <signal.h>],[ |
|
|
523 sigset_t ss; |
|
|
524 struct sigaction sa; |
|
|
525 sigemptyset(&ss); sigsuspend(&ss); |
|
|
526 sigaction(SIGINT, &sa, (struct sigaction *) 0); |
|
|
527 sigprocmask(SIG_BLOCK, &ss, (sigset_t *) 0); |
|
|
528 ], octave_cv_signal_vintage=posix, |
|
|
529 [ |
|
|
530 AC_TRY_LINK([#include <signal.h>], [ |
|
|
531 int mask = sigmask(SIGINT); |
|
|
532 sigsetmask(mask); sigblock(mask); sigpause(mask); |
|
|
533 ], octave_cv_signal_vintage=4.2bsd, |
|
|
534 [ |
|
|
535 AC_TRY_LINK([ |
|
|
536 #include <signal.h> |
|
|
537 RETSIGTYPE foo() { }], [ |
|
|
538 int mask = sigmask(SIGINT); |
|
|
539 sigset(SIGINT, foo); sigrelse(SIGINT); |
|
|
540 sighold(SIGINT); sigpause(SIGINT); |
|
2491
|
541 ], octave_cv_signal_vintage=svr3, octave_cv_signal_vintage=v7 |
|
2469
|
542 )] |
|
|
543 )] |
|
|
544 ) |
|
|
545 ]) |
|
|
546 AC_MSG_RESULT($octave_cv_signal_vintage) |
|
2491
|
547 if test "$octave_cv_signal_vintage" = posix; then |
|
2469
|
548 AC_DEFINE(HAVE_POSIX_SIGNALS) |
|
2491
|
549 elif test "$octave_cv_signal_vintage" = "4.2bsd"; then |
|
2469
|
550 AC_DEFINE(HAVE_BSD_SIGNALS) |
|
2491
|
551 elif test "$octave_cv_signal_vintage" = svr3; then |
|
2469
|
552 AC_DEFINE(HAVE_USG_SIGHOLD) |
|
|
553 fi |
|
|
554 ]) |
|
|
555 dnl |
|
|
556 AC_DEFUN(OCTAVE_REINSTALL_SIGHANDLERS, |
|
|
557 [AC_REQUIRE([AC_TYPE_SIGNAL]) |
|
|
558 AC_REQUIRE([OCTAVE_SIGNAL_CHECK]) |
|
|
559 AC_MSG_CHECKING([if signal handlers must be reinstalled when invoked]) |
|
|
560 AC_CACHE_VAL(octave_cv_must_reinstall_sighandlers, |
|
|
561 [AC_TRY_RUN([ |
|
|
562 #include <signal.h> |
|
|
563 #ifdef HAVE_UNISTD_H |
|
|
564 #include <unistd.h> |
|
|
565 #endif |
|
|
566 typedef RETSIGTYPE sigfunc(); |
|
|
567 int nsigint; |
|
|
568 #ifdef HAVE_POSIX_SIGNALS |
|
|
569 sigfunc * |
|
|
570 set_signal_handler(sig, handler) |
|
|
571 int sig; |
|
|
572 sigfunc *handler; |
|
|
573 { |
|
|
574 struct sigaction act, oact; |
|
|
575 act.sa_handler = handler; |
|
|
576 act.sa_flags = 0; |
|
|
577 sigemptyset (&act.sa_mask); |
|
|
578 sigemptyset (&oact.sa_mask); |
|
|
579 sigaction (sig, &act, &oact); |
|
|
580 return (oact.sa_handler); |
|
|
581 } |
|
|
582 #else |
|
|
583 #define set_signal_handler(s, h) signal(s, h) |
|
|
584 #endif |
|
|
585 RETSIGTYPE |
|
|
586 sigint(s) |
|
|
587 int s; |
|
|
588 { |
|
|
589 nsigint++; |
|
|
590 } |
|
|
591 main() |
|
|
592 { |
|
|
593 nsigint = 0; |
|
|
594 set_signal_handler(SIGINT, sigint); |
|
|
595 kill((int)getpid(), SIGINT); |
|
|
596 kill((int)getpid(), SIGINT); |
|
|
597 exit(nsigint != 2); |
|
|
598 } |
|
|
599 ], octave_cv_must_reinstall_sighandlers=no, octave_cv_must_reinstall_sighandlers=yes, |
|
3130
|
600 if test "$octave_cv_signal_vintage" = svr3; then |
|
|
601 octave_cv_must_reinstall_sighandlers=yes |
|
|
602 else |
|
|
603 octave_cv_must_reinstall_sighandlers=no |
|
|
604 fi)]) |
|
|
605 if test "$cross_compiling" = yes; then |
|
|
606 AC_MSG_RESULT([$octave_cv_must_reinstall_sighandlers assumed for cross compilation]) |
|
|
607 else |
|
|
608 AC_MSG_RESULT($octave_cv_must_reinstall_sighandlers) |
|
|
609 fi |
|
2491
|
610 if test "$octave_cv_must_reinstall_sighandlers" = yes; then |
|
3130
|
611 AC_DEFINE(MUST_REINSTALL_SIGHANDLERS) |
|
2469
|
612 fi |
|
|
613 ]) |
|
2626
|
614 dnl |
|
|
615 dnl This check originally from bash 2.0. |
|
|
616 dnl |
|
|
617 dnl Check for typedef'd symbols in header files, but allow the caller to |
|
|
618 dnl specify the include files to be checked in addition to the default. |
|
|
619 dnl |
|
|
620 dnl OCTAVE_CHECK_TYPE(TYPE, HEADERS, DEFAULT[, VALUE-IF-FOUND]) |
|
|
621 AC_DEFUN(OCTAVE_CHECK_TYPE, |
|
|
622 [AC_REQUIRE([AC_HEADER_STDC])dnl |
|
|
623 AC_MSG_CHECKING(for $1) |
|
|
624 AC_CACHE_VAL(octave_cv_type_$1, |
|
|
625 [AC_EGREP_CPP($1, [#include <sys/types.h> |
|
|
626 #if STDC_HEADERS |
|
|
627 #include <stdlib.h> |
|
|
628 #endif |
|
|
629 $2 |
|
|
630 ], octave_cv_type_$1=yes, octave_cv_type_$1=no)]) |
|
|
631 AC_MSG_RESULT($octave_cv_type_$1) |
|
|
632 ifelse($#, 4, [if test $octave_cv_type_$1 = yes; then |
|
|
633 AC_DEFINE($4) |
|
|
634 fi]) |
|
|
635 if test $octave_cv_type_$1 = no; then |
|
|
636 AC_DEFINE($1, $3) |
|
|
637 fi |
|
|
638 ]) |
|
3107
|
639 dnl |
|
|
640 dnl Check to see if C++ compiler needs the new friend template declaration |
|
|
641 dnl syntax. |
|
|
642 dnl |
|
|
643 dnl OCTAVE_CXX_NEW_FRIEND_TEMPLATE_DECL |
|
|
644 AC_DEFUN(OCTAVE_CXX_NEW_FRIEND_TEMPLATE_DECL, [ |
|
|
645 AC_REQUIRE([AC_PROG_CXX]) |
|
|
646 AC_MSG_CHECKING([for C++ support for new friend template declaration]) |
|
|
647 AC_CACHE_VAL(octave_cv_cxx_new_friend_template_decl, [ |
|
|
648 AC_LANG_SAVE |
|
|
649 AC_LANG_CPLUSPLUS |
|
|
650 rm -f conftest.h |
|
|
651 cat > conftest.h <<EOB |
|
|
652 struct A { |
|
|
653 friend int operator== (const A&, const A&); |
|
|
654 A (int) { } |
|
|
655 }; |
|
|
656 |
|
|
657 template <class T> int |
|
|
658 operator== (const T&, const T&) |
|
|
659 { |
|
|
660 return 0; |
|
|
661 } |
|
|
662 EOB |
|
|
663 AC_TRY_LINK([#include "conftest.h"], [ |
|
|
664 A a (1); |
|
|
665 return a == A(1); |
|
|
666 ], |
|
|
667 octave_cv_cxx_new_friend_template_decl=no, |
|
|
668 octave_cv_cxx_new_friend_template_decl=yes |
|
|
669 ) |
|
|
670 AC_LANG_RESTORE |
|
|
671 ]) |
|
|
672 AC_MSG_RESULT($octave_cv_cxx_new_friend_template_decl) |
|
|
673 if test $octave_cv_cxx_new_friend_template_decl = yes; then |
|
|
674 AC_DEFINE(CXX_NEW_FRIEND_TEMPLATE_DECL) |
|
|
675 fi |
|
|
676 ]) |
|
3126
|
677 dnl |
|
3233
|
678 dnl Check to see if C compiler handles FLAG command line option. If |
|
|
679 dnl two arguments are specified, execute the second arg as shell |
|
|
680 dnl commands. Otherwise, add FLAG to CFLAGS if the compiler accepts |
|
|
681 dnl the flag. |
|
3126
|
682 dnl |
|
|
683 dnl OCTAVE_CC_FLAG |
|
|
684 AC_DEFUN(OCTAVE_CC_FLAG, [ |
|
|
685 ac_safe=`echo "$1" | sed 'y%./+-%__p_%'` |
|
|
686 AC_MSG_CHECKING(whether ${CC-cc} accepts $1) |
|
|
687 AC_CACHE_VAL(octave_cv_cc_flag_$ac_safe, [ |
|
|
688 AC_LANG_SAVE |
|
|
689 AC_LANG_C |
|
|
690 XCFLAGS="$CFLAGS" |
|
|
691 CFLAGS="$CFLAGS $1" |
|
|
692 AC_TRY_LINK([], [], |
|
|
693 eval "octave_cv_cc_flag_$ac_safe=yes", |
|
|
694 eval "octave_cv_cc_flag_$ac_safe=no") |
|
|
695 CFLAGS="$XCFLAGS" |
|
|
696 AC_LANG_RESTORE |
|
|
697 ]) |
|
|
698 if eval "test \"`echo '$octave_cv_cc_flag_'$ac_safe`\" = yes"; then |
|
|
699 AC_MSG_RESULT(yes) |
|
3131
|
700 ifelse([$2], , [ |
|
|
701 CFLAGS="$CFLAGS $1" |
|
|
702 AC_MSG_RESULT([adding $1 to CFLAGS])], [$2]) |
|
3126
|
703 else |
|
|
704 AC_MSG_RESULT(no) |
|
|
705 ifelse([$3], , , [$3]) |
|
|
706 fi |
|
|
707 ]) |
|
|
708 dnl |
|
3233
|
709 dnl Check to see if C++ compiler handles FLAG command line option. If |
|
|
710 dnl two arguments are specified, execute the second arg as shell |
|
|
711 dnl commands. Otherwise, add FLAG to CXXFLAGS if the compiler accepts |
|
|
712 dnl the flag. |
|
3126
|
713 dnl |
|
|
714 dnl OCTAVE_CXX_FLAG |
|
|
715 AC_DEFUN(OCTAVE_CXX_FLAG, [ |
|
|
716 ac_safe=`echo "$1" | sed 'y%./+-%__p_%'` |
|
3222
|
717 AC_MSG_CHECKING(whether ${CXX-g++} accepts $1) |
|
3126
|
718 AC_CACHE_VAL(octave_cv_cxx_flag_$ac_safe, [ |
|
|
719 AC_LANG_SAVE |
|
|
720 AC_LANG_CPLUSPLUS |
|
|
721 XCXXFLAGS="$CXXFLAGS" |
|
|
722 CXXFLAGS="$CXXFLAGS $1" |
|
|
723 AC_TRY_LINK([], [], |
|
|
724 eval "octave_cv_cxx_flag_$ac_safe=yes", |
|
|
725 eval "octave_cv_cxx_flag_$ac_safe=no") |
|
|
726 CXXFLAGS="$XCXXFLAGS" |
|
|
727 AC_LANG_RESTORE |
|
|
728 ]) |
|
|
729 if eval "test \"`echo '$octave_cv_cxx_flag_'$ac_safe`\" = yes"; then |
|
|
730 AC_MSG_RESULT(yes) |
|
3131
|
731 ifelse([$2], , [ |
|
|
732 CXXFLAGS="$CXXFLAGS $1" |
|
|
733 AC_MSG_RESULT([adding $1 to CXXFLAGS])], [$2]) |
|
3126
|
734 else |
|
|
735 AC_MSG_RESULT(no) |
|
|
736 ifelse([$3], , , [$3]) |
|
|
737 fi |
|
|
738 ]) |
|
3130
|
739 dnl |
|
3729
|
740 dnl Check for flex |
|
|
741 dnl |
|
|
742 AC_DEFUN(OCTAVE_PROG_FLEX, [ |
|
|
743 ### For now, don't define LEXLIB to be -lfl -- we don't use anything in |
|
|
744 ### it, and it might not be installed. |
|
|
745 ### |
|
|
746 ### Also make sure that we generate an interactive scanner if we are |
|
|
747 ### using flex. |
|
|
748 AC_PROG_LEX |
|
|
749 case "$LEX" in |
|
|
750 flex*) |
|
|
751 LFLAGS="-t -I" |
|
|
752 AC_MSG_RESULT([defining LFLAGS to be $LFLAGS]) |
|
|
753 LEXLIB= |
|
|
754 ;; |
|
|
755 *) |
|
|
756 LEX='$(top_srcdir)/missing flex' |
|
|
757 warn_flex="I didn't find flex, but it's only a problem if you need to reconstruct lex.cc" |
|
|
758 AC_MSG_WARN($warn_flex) |
|
|
759 ;; |
|
|
760 esac |
|
|
761 AC_SUBST(LFLAGS) |
|
|
762 ]) |
|
|
763 dnl |
|
|
764 dnl Check for bison |
|
|
765 dnl |
|
|
766 AC_DEFUN(OCTAVE_PROG_BISON, [ |
|
|
767 AC_PROG_YACC |
|
|
768 case "$YACC" in |
|
|
769 bison*) |
|
|
770 ;; |
|
|
771 *) |
|
|
772 YACC='$(top_srcdir)/missing bison' |
|
|
773 warn_bison="I didn't find bison, but it's only a problem if you need to reconstruct parse.cc" |
|
|
774 AC_MSG_WARN($warn_bison) |
|
|
775 ;; |
|
|
776 esac |
|
|
777 ]) |
|
|
778 dnl |
|
3130
|
779 dnl What pager should we use? |
|
|
780 dnl |
|
|
781 AC_DEFUN(OCTAVE_PROG_PAGER, |
|
|
782 [if test "$cross_compiling" = yes; then |
|
|
783 DEFAULT_PAGER=less |
|
|
784 AC_MSG_RESULT(assuming $DEFAULT_PAGER exists on $canonical_host_type host) |
|
|
785 AC_SUBST(DEFAULT_PAGER) |
|
|
786 else |
|
|
787 octave_possible_pagers="less more page pg" |
|
|
788 case "$canonical_host_type" in |
|
|
789 *-*-cygwin32) |
|
|
790 octave_possible_pagers="$octave_possible_pagers more.com" |
|
|
791 ;; |
|
|
792 esac |
|
|
793 |
|
|
794 AC_CHECK_PROGS(DEFAULT_PAGER, $octave_possible_pagers, []) |
|
|
795 if test -z "$DEFAULT_PAGER"; then |
|
|
796 warn_less="I couldn't find \`less', \`more', \`page', or \`pg'" |
|
|
797 AC_MSG_WARN($warn_less) |
|
|
798 fi |
|
|
799 fi |
|
|
800 ]) |
|
|
801 dnl |
|
|
802 dnl Does gnuplot exist? Is it a recent version? |
|
|
803 dnl |
|
|
804 AC_DEFUN(OCTAVE_PROG_GNUPLOT, |
|
|
805 [if test "$cross_compiling" = yes; then |
|
|
806 GNUPLOT_BINARY=gnuplot |
|
|
807 AC_MSG_RESULT(assuming $GNUPLOT_BINARY exists on $canonical_host_type host) |
|
|
808 AC_SUBST(DEFAULT_PAGER) |
|
|
809 AC_MSG_RESULT(assuming $GNUPLOT_BINARY supports multiplot mode) |
|
|
810 AC_DEFINE(GNUPLOT_HAS_MULTIPLOT, 1) |
|
|
811 AC_MSG_RESULT(assuming $GNUPLOT_BINARY supports multiple frams) |
|
|
812 AC_DEFINE(GNUPLOT_HAS_FRAMES, 1) |
|
|
813 else |
|
|
814 AC_CHECK_PROG(GNUPLOT_BINARY, gnuplot, gnuplot, []) |
|
|
815 if test -n "$GNUPLOT_BINARY"; then |
|
|
816 AC_MSG_CHECKING([to see if your gnuplot supports multiplot]) |
|
|
817 if test -z "`echo 'set term unknown; set multiplot' | \ |
|
|
818 $GNUPLOT_BINARY 2>&1`"; then |
|
|
819 AC_MSG_RESULT([yes]) |
|
|
820 AC_DEFINE(GNUPLOT_HAS_MULTIPLOT, 1) |
|
|
821 else |
|
|
822 AC_MSG_RESULT([no]) |
|
|
823 fi |
|
|
824 AC_MSG_CHECKING([to see if your gnuplot supports multiple plot windows]) |
|
|
825 if test -z "`echo 'set term x11 2' | $GNUPLOT_BINARY 2>&1`"; then |
|
|
826 AC_MSG_RESULT([yes]) |
|
|
827 AC_DEFINE(GNUPLOT_HAS_FRAMES, 1) |
|
|
828 else |
|
|
829 AC_MSG_RESULT([no]) |
|
|
830 fi |
|
|
831 else |
|
|
832 warn_gnuplot="yes" |
|
|
833 |
|
|
834 ## If you change this text, be sure to also copy it to the set of |
|
|
835 ## warnings at the end of the script |
|
|
836 |
|
|
837 AC_MSG_WARN([I didn't find gnuplot. It isn't necessary to have gnuplot]) |
|
|
838 AC_MSG_WARN([installed, but you won't be able to use any of Octave's]) |
|
|
839 AC_MSG_WARN([plotting commands without it.]) |
|
|
840 AC_MSG_WARN([]) |
|
|
841 AC_MSG_WARN([If gnuplot is installed but it isn't in your path, you can]) |
|
|
842 AC_MSG_WARN([tell Octave where to find it by typing the command]) |
|
|
843 AC_MSG_WARN([]) |
|
|
844 AC_MSG_WARN([gnuplot_binary = "/full/path/to/gnuplot/binary"]) |
|
|
845 AC_MSG_WARN([]) |
|
|
846 AC_MSG_WARN([at the Octave prompt.]) |
|
|
847 fi |
|
|
848 fi |
|
|
849 ]) |
|
|
850 dnl |
|
|
851 dnl Is DejaGNU installed? |
|
|
852 dnl |
|
3222
|
853 dnl OCTAVE_PROG_RUNTEST |
|
3130
|
854 AC_DEFUN(OCTAVE_PROG_RUNTEST, |
|
|
855 [if test "$cross_compiling" = yes; then |
|
|
856 RUNTEST=runtest |
|
|
857 AC_MSG_RESULT(assuming $RUNTEST exists on $canonical_host_type host) |
|
|
858 AC_SUBST(RUNTEST) |
|
|
859 else |
|
|
860 AC_CHECK_PROG(RUNTEST, runtest, runtest, []) |
|
|
861 if test -z "$RUNTEST"; then |
|
|
862 warn_runtest="I didn't find runtest -- install DejaGNU if you want to run \`make check'" |
|
|
863 AC_MSG_WARN($warn_runtest) |
|
|
864 fi |
|
|
865 AC_SUBST(RUNTEST) |
|
|
866 fi |
|
|
867 ]) |
|
3222
|
868 dnl |
|
3673
|
869 dnl Is gperf installed? |
|
|
870 dnl |
|
|
871 dnl OCTAVE_PROG_GPERF |
|
3731
|
872 AC_DEFUN(OCTAVE_PROG_GPERF, [ |
|
|
873 AC_CHECK_PROG(GPERF, gperf, gperf, []) |
|
|
874 if test -n "$GPERF"; then |
|
|
875 if echo "%{ |
|
|
876 %} |
|
|
877 %% |
|
3750
|
878 foo" | $GPERF -t -C -D -E -G -L ANSI-C -H octave_kw_hash -N octave_kw_lookup > /dev/null 2>&1; then |
|
3731
|
879 true |
|
|
880 else |
|
|
881 GPERF="" |
|
|
882 warn_gperf="I found gperf, but it does not support all of the following options: -t -C -D -E -G -L ANSI-C -H -N; you need gperf 2.7 or a more recent version" |
|
|
883 AC_MSG_WARN($warn_gperf) |
|
|
884 fi |
|
|
885 else |
|
|
886 GPERF='$(top_srcdir)/missing gperf' |
|
|
887 warn_gperf="I didn't find gperf, but it's only a problem if you need to reconstruct oct-gperf.h" |
|
|
888 AC_MSG_WARN($warn_gperf) |
|
|
889 fi |
|
|
890 AC_SUBST(GPERF) |
|
3673
|
891 ]) |
|
|
892 dnl |
|
3222
|
893 dnl Find nm. |
|
|
894 dnl |
|
|
895 dnl OCTAVE_PROG_NM |
|
|
896 AC_DEFUN(OCTAVE_PROG_NM, |
|
|
897 [if test "$cross_compiling" = yes; then |
|
|
898 NM=nm |
|
|
899 AC_MSG_RESULT(assuming $NM exists on $canonical_host_type host) |
|
|
900 AC_SUBST(NM) |
|
|
901 else |
|
|
902 AC_CHECK_PROG(NM, nm, nm, []) |
|
|
903 AC_SUBST(NM) |
|
|
904 fi |
|
|
905 ]) |
|
|
906 dnl |
|
|
907 dnl See if the C++ compiler prepends an underscore to external names. |
|
|
908 dnl |
|
|
909 dnl OCTAVE_CXX_PREPENDS_UNDERSCORE |
|
|
910 AC_DEFUN(OCTAVE_CXX_PREPENDS_UNDERSCORE, |
|
|
911 [AC_MSG_CHECKING([whether ${CXX-g++} prepends an underscore to external names]) |
|
|
912 AC_CACHE_VAL(octave_cv_cxx_prepends_underscore, |
|
|
913 [octave_cv_cxx_prepends_underscore=no |
|
|
914 AC_LANG_SAVE |
|
|
915 AC_LANG_CPLUSPLUS |
|
|
916 cat > conftest.$ac_ext <<EOF |
|
|
917 bool FSmy_dld_fcn (void) { } |
|
|
918 EOF |
|
|
919 if AC_TRY_EVAL(ac_compile); then |
|
|
920 if test "`${NM-nm} conftest.o | grep _FSmy_dld_fcn`" != ""; then |
|
|
921 octave_cv_cxx_prepends_underscore=yes |
|
|
922 fi |
|
|
923 else |
|
|
924 echo "configure: failed program was:" >&AC_FD_CC |
|
|
925 cat conftest.$ac_ext >&AC_FD_CC |
|
|
926 fi |
|
|
927 AC_LANG_RESTORE |
|
|
928 ]) |
|
|
929 AC_MSG_RESULT($octave_cv_cxx_prepends_underscore) |
|
|
930 if test $octave_cv_cxx_prepends_underscore = yes; then |
|
|
931 AC_DEFINE(CXX_PREPENDS_UNDERSCORE) |
|
|
932 fi |
|
|
933 ]) |
|
3769
|
934 dnl |
|
|
935 dnl See if the C++ library is ISO compliant. |
|
|
936 dnl FIXME: This is obviously very simplistic, and trivially fooled. |
|
|
937 dnl |
|
|
938 dnl OCTAVE_CXX_ISO_COMPLIANT_LIBRARY |
|
|
939 AC_DEFUN(OCTAVE_CXX_ISO_COMPLIANT_LIBRARY, [ |
|
|
940 AC_REQUIRE([AC_PROG_CXX]) |
|
|
941 AC_MSG_CHECKING([if C++ library is ISO compliant]) |
|
|
942 AC_CACHE_VAL(octave_cv_cxx_iso_compliant_library, [ |
|
|
943 AC_LANG_SAVE |
|
|
944 AC_LANG_CPLUSPLUS |
|
|
945 rm -f conftest.h |
|
|
946 for inc in algorithm bitset cassert cctype cerrno cfloat ciso646 \ |
|
|
947 climits clocale cmath complex csetjmp csignal cstdarg cstddef \ |
|
|
948 cstdio cstdlib cstring ctime cwchar cwctype deque exception \ |
|
|
949 fstream functional iomanip ios iosfwd iostream istream iterator \ |
|
|
950 limits list locale map memory new numeric ostream queue set \ |
|
|
951 sstream stack stdexcept streambuf string strstream typeinfo \ |
|
|
952 utility valarray vector; do |
|
|
953 echo "#include <$inc>" >> conftest.h |
|
|
954 done |
|
|
955 AC_TRY_LINK([#include "conftest.h"], [ |
|
|
956 std::bitset<50> flags; |
|
|
957 flags.set(); |
|
|
958 int digits = std::numeric_limits<unsigned long>::digits; |
|
|
959 digits = 0; |
|
|
960 ], |
|
|
961 octave_cv_cxx_iso_compliant_library=yes, |
|
|
962 octave_cv_cxx_iso_compliant_library=no |
|
|
963 ) |
|
|
964 AC_LANG_RESTORE |
|
|
965 ]) |
|
|
966 AC_MSG_RESULT($octave_cv_cxx_iso_compliant_library) |
|
|
967 if test $octave_cv_cxx_iso_compliant_library = yes; then |
|
|
968 AC_DEFINE(CXX_ISO_COMPLIANT_LIBRARY) |
|
|
969 fi |
|
|
970 ]) |
|
3822
|
971 dnl |
|
|
972 dnl Allow the user disable support for command line editing using GNU |
|
|
973 dnl readline. |
|
|
974 dnl |
|
|
975 dnl OCTAVE_ENABLE_READLINE |
|
|
976 AC_DEFUN(OCTAVE_ENABLE_READLINE, [ |
|
|
977 USE_READLINE=true |
|
|
978 AC_ARG_ENABLE(readline, |
|
|
979 [ --enable-readline use readline library (default is yes)], |
|
|
980 [if test "$enableval" = no; then |
|
3824
|
981 USE_READLINE=false |
|
|
982 fi]) |
|
3822
|
983 if $USE_READLINE; then |
|
|
984 AC_CHECK_LIB(readline, rl_set_keyboard_input_timeout, [ |
|
|
985 LIBS="-lreadline $LIBS" |
|
|
986 AC_DEFINE(USE_READLINE, 1) |
|
|
987 ], [ |
|
3824
|
988 AC_MSG_WARN([I need GNU Readline 4.2 or later]) |
|
|
989 AC_MSG_ERROR([this is fatal unless you specify --disable-readline]) |
|
3822
|
990 ]) |
|
|
991 fi |
|
|
992 ]) |
