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1 | office | 1 | # lib-prefix.m4 serial 7 (gettext-0.18) |
2 | dnl Copyright (C) 2001-2005, 2008-2011 Free Software Foundation, Inc. |
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3 | dnl This file is free software; the Free Software Foundation |
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4 | dnl gives unlimited permission to copy and/or distribute it, |
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5 | dnl with or without modifications, as long as this notice is preserved. |
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6 | |||
7 | dnl From Bruno Haible. |
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8 | |||
9 | dnl AC_LIB_ARG_WITH is synonymous to AC_ARG_WITH in autoconf-2.13, and |
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10 | dnl similar to AC_ARG_WITH in autoconf 2.52...2.57 except that is doesn't |
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11 | dnl require excessive bracketing. |
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12 | ifdef([AC_HELP_STRING], |
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13 | [AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[[$2]],[$3],[$4])])], |
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14 | [AC_DEFUN([AC_][LIB_ARG_WITH], [AC_ARG_WITH([$1],[$2],[$3],[$4])])]) |
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15 | |||
16 | dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed |
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17 | dnl to access previously installed libraries. The basic assumption is that |
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18 | dnl a user will want packages to use other packages he previously installed |
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19 | dnl with the same --prefix option. |
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20 | dnl This macro is not needed if only AC_LIB_LINKFLAGS is used to locate |
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21 | dnl libraries, but is otherwise very convenient. |
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22 | AC_DEFUN([AC_LIB_PREFIX], |
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23 | [ |
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24 | AC_BEFORE([$0], [AC_LIB_LINKFLAGS]) |
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25 | AC_REQUIRE([AC_PROG_CC]) |
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26 | AC_REQUIRE([AC_CANONICAL_HOST]) |
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27 | AC_REQUIRE([AC_LIB_PREPARE_MULTILIB]) |
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28 | AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) |
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29 | dnl By default, look in $includedir and $libdir. |
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30 | use_additional=yes |
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31 | AC_LIB_WITH_FINAL_PREFIX([ |
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32 | eval additional_includedir=\"$includedir\" |
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33 | eval additional_libdir=\"$libdir\" |
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34 | ]) |
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35 | AC_LIB_ARG_WITH([lib-prefix], |
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36 | [ --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib |
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37 | --without-lib-prefix don't search for libraries in includedir and libdir], |
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38 | [ |
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39 | if test "X$withval" = "Xno"; then |
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40 | use_additional=no |
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41 | else |
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42 | if test "X$withval" = "X"; then |
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43 | AC_LIB_WITH_FINAL_PREFIX([ |
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44 | eval additional_includedir=\"$includedir\" |
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45 | eval additional_libdir=\"$libdir\" |
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46 | ]) |
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47 | else |
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48 | additional_includedir="$withval/include" |
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49 | additional_libdir="$withval/$acl_libdirstem" |
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50 | fi |
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51 | fi |
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52 | ]) |
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53 | if test $use_additional = yes; then |
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54 | dnl Potentially add $additional_includedir to $CPPFLAGS. |
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55 | dnl But don't add it |
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56 | dnl 1. if it's the standard /usr/include, |
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57 | dnl 2. if it's already present in $CPPFLAGS, |
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58 | dnl 3. if it's /usr/local/include and we are using GCC on Linux, |
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59 | dnl 4. if it doesn't exist as a directory. |
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60 | if test "X$additional_includedir" != "X/usr/include"; then |
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61 | haveit= |
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62 | for x in $CPPFLAGS; do |
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63 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
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64 | if test "X$x" = "X-I$additional_includedir"; then |
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65 | haveit=yes |
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66 | break |
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67 | fi |
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68 | done |
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69 | if test -z "$haveit"; then |
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70 | if test "X$additional_includedir" = "X/usr/local/include"; then |
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71 | if test -n "$GCC"; then |
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72 | case $host_os in |
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73 | linux* | gnu* | k*bsd*-gnu) haveit=yes;; |
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74 | esac |
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75 | fi |
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76 | fi |
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77 | if test -z "$haveit"; then |
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78 | if test -d "$additional_includedir"; then |
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79 | dnl Really add $additional_includedir to $CPPFLAGS. |
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80 | CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir" |
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81 | fi |
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82 | fi |
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83 | fi |
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84 | fi |
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85 | dnl Potentially add $additional_libdir to $LDFLAGS. |
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86 | dnl But don't add it |
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87 | dnl 1. if it's the standard /usr/lib, |
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88 | dnl 2. if it's already present in $LDFLAGS, |
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89 | dnl 3. if it's /usr/local/lib and we are using GCC on Linux, |
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90 | dnl 4. if it doesn't exist as a directory. |
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91 | if test "X$additional_libdir" != "X/usr/$acl_libdirstem"; then |
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92 | haveit= |
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93 | for x in $LDFLAGS; do |
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94 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
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95 | if test "X$x" = "X-L$additional_libdir"; then |
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96 | haveit=yes |
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97 | break |
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98 | fi |
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99 | done |
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100 | if test -z "$haveit"; then |
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101 | if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem"; then |
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102 | if test -n "$GCC"; then |
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103 | case $host_os in |
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104 | linux*) haveit=yes;; |
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105 | esac |
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106 | fi |
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107 | fi |
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108 | if test -z "$haveit"; then |
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109 | if test -d "$additional_libdir"; then |
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110 | dnl Really add $additional_libdir to $LDFLAGS. |
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111 | LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir" |
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112 | fi |
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113 | fi |
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114 | fi |
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115 | fi |
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116 | fi |
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117 | ]) |
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118 | |||
119 | dnl AC_LIB_PREPARE_PREFIX creates variables acl_final_prefix, |
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120 | dnl acl_final_exec_prefix, containing the values to which $prefix and |
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121 | dnl $exec_prefix will expand at the end of the configure script. |
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122 | AC_DEFUN([AC_LIB_PREPARE_PREFIX], |
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123 | [ |
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124 | dnl Unfortunately, prefix and exec_prefix get only finally determined |
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125 | dnl at the end of configure. |
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126 | if test "X$prefix" = "XNONE"; then |
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127 | acl_final_prefix="$ac_default_prefix" |
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128 | else |
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129 | acl_final_prefix="$prefix" |
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130 | fi |
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131 | if test "X$exec_prefix" = "XNONE"; then |
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132 | acl_final_exec_prefix='${prefix}' |
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133 | else |
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134 | acl_final_exec_prefix="$exec_prefix" |
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135 | fi |
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136 | acl_save_prefix="$prefix" |
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137 | prefix="$acl_final_prefix" |
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138 | eval acl_final_exec_prefix=\"$acl_final_exec_prefix\" |
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139 | prefix="$acl_save_prefix" |
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140 | ]) |
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141 | |||
142 | dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the |
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143 | dnl variables prefix and exec_prefix bound to the values they will have |
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144 | dnl at the end of the configure script. |
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145 | AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX], |
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146 | [ |
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147 | acl_save_prefix="$prefix" |
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148 | prefix="$acl_final_prefix" |
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149 | acl_save_exec_prefix="$exec_prefix" |
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150 | exec_prefix="$acl_final_exec_prefix" |
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151 | $1 |
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152 | exec_prefix="$acl_save_exec_prefix" |
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153 | prefix="$acl_save_prefix" |
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154 | ]) |
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155 | |||
156 | dnl AC_LIB_PREPARE_MULTILIB creates |
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157 | dnl - a variable acl_libdirstem, containing the basename of the libdir, either |
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158 | dnl "lib" or "lib64" or "lib/64", |
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159 | dnl - a variable acl_libdirstem2, as a secondary possible value for |
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160 | dnl acl_libdirstem, either the same as acl_libdirstem or "lib/sparcv9" or |
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161 | dnl "lib/amd64". |
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162 | AC_DEFUN([AC_LIB_PREPARE_MULTILIB], |
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163 | [ |
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164 | dnl There is no formal standard regarding lib and lib64. |
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165 | dnl On glibc systems, the current practice is that on a system supporting |
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166 | dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under |
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167 | dnl $prefix/lib64 and 32-bit libraries go under $prefix/lib. We determine |
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168 | dnl the compiler's default mode by looking at the compiler's library search |
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169 | dnl path. If at least one of its elements ends in /lib64 or points to a |
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170 | dnl directory whose absolute pathname ends in /lib64, we assume a 64-bit ABI. |
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171 | dnl Otherwise we use the default, namely "lib". |
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172 | dnl On Solaris systems, the current practice is that on a system supporting |
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173 | dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under |
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174 | dnl $prefix/lib/64 (which is a symlink to either $prefix/lib/sparcv9 or |
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175 | dnl $prefix/lib/amd64) and 32-bit libraries go under $prefix/lib. |
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176 | AC_REQUIRE([AC_CANONICAL_HOST]) |
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177 | acl_libdirstem=lib |
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178 | acl_libdirstem2= |
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179 | case "$host_os" in |
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180 | solaris*) |
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181 | dnl See Solaris 10 Software Developer Collection > Solaris 64-bit Developer's Guide > The Development Environment |
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182 | dnl <http://docs.sun.com/app/docs/doc/816-5138/dev-env?l=en&a=view>. |
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183 | dnl "Portable Makefiles should refer to any library directories using the 64 symbolic link." |
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184 | dnl But we want to recognize the sparcv9 or amd64 subdirectory also if the |
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185 | dnl symlink is missing, so we set acl_libdirstem2 too. |
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186 | AC_CACHE_CHECK([for 64-bit host], [gl_cv_solaris_64bit], |
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187 | [AC_EGREP_CPP([sixtyfour bits], [ |
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188 | #ifdef _LP64 |
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189 | sixtyfour bits |
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190 | #endif |
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191 | ], [gl_cv_solaris_64bit=yes], [gl_cv_solaris_64bit=no]) |
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192 | ]) |
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193 | if test $gl_cv_solaris_64bit = yes; then |
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194 | acl_libdirstem=lib/64 |
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195 | case "$host_cpu" in |
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196 | sparc*) acl_libdirstem2=lib/sparcv9 ;; |
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197 | i*86 | x86_64) acl_libdirstem2=lib/amd64 ;; |
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198 | esac |
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199 | fi |
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200 | ;; |
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201 | *) |
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202 | searchpath=`(LC_ALL=C $CC -print-search-dirs) 2>/dev/null | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'` |
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203 | if test -n "$searchpath"; then |
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204 | acl_save_IFS="${IFS= }"; IFS=":" |
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205 | for searchdir in $searchpath; do |
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206 | if test -d "$searchdir"; then |
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207 | case "$searchdir" in |
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208 | */lib64/ | */lib64 ) acl_libdirstem=lib64 ;; |
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209 | */../ | */.. ) |
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210 | # Better ignore directories of this form. They are misleading. |
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211 | ;; |
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212 | *) searchdir=`cd "$searchdir" && pwd` |
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213 | case "$searchdir" in |
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214 | */lib64 ) acl_libdirstem=lib64 ;; |
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215 | esac ;; |
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216 | esac |
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217 | fi |
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218 | done |
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219 | IFS="$acl_save_IFS" |
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220 | fi |
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221 | ;; |
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222 | esac |
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223 | test -n "$acl_libdirstem2" || acl_libdirstem2="$acl_libdirstem" |
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224 | ]) |