Mercurial > hg > CbC > CbC_gcc
annotate config/override.m4 @ 60:bd49c42ec43e
remove unnecessary files
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 15 Feb 2010 17:39:45 +0900 |
| parents | 77e2b8dfacca |
| children | f6334be47118 |
| rev | line source |
|---|---|
| 0 | 1 dnl Fix Autoconf-2.59 bugs: by overriding broken internal |
| 2 dnl Autoconf macros with backports of the 2.60+ fix. | |
| 3 dnl - AC_CONFIG_SUBDIRS whitespace mangling, | |
| 4 dnl - more lenient precious variable checks | |
| 5 dnl - better configure error message | |
| 6 dnl - reliance on non-Posix m4wrap (M4 1.6 or newer implement FIFO) | |
| 7 dnl | |
| 8 dnl The override bits of this file should be a no-op for the newest | |
| 9 dnl Autoconf version, which means they can be removed once the complete | |
| 10 dnl tree has moved to a new enough Autoconf version. | |
| 11 dnl | |
| 12 dnl The _GCC_AUTOCONF_VERSION_TEST ensures that exactly the desired | |
| 13 dnl Autoconf version is used. It should be kept for consistency. | |
| 14 | |
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15 dnl Provide m4_copy_force and m4_rename_force for old Autoconf versions. |
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16 |
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17 m4_ifndef([m4_copy_force], |
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18 [m4_define([m4_copy_force], |
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19 [m4_ifdef([$2], [m4_undefine([$2])])m4_copy($@)])]) |
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20 |
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21 m4_ifndef([m4_rename_force], |
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22 [m4_define([m4_rename_force], |
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23 [m4_ifdef([$2], [m4_undefine([$2])])m4_rename($@)])]) |
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24 |
| 0 | 25 dnl m4_PACKAGE_VERSION is an undocumented Autoconf macro. |
| 26 dnl We use it because this fix is intended for 2.59 only. | |
| 27 dnl A feature test for the broken AC_CONFIG_SUBDIRS instead | |
| 28 dnl would be better but is tricky. | |
| 29 dnl | |
| 30 dnl Use ifdef/ifelse over m4_ifdef/m4_ifelse to be clean for 2.13. | |
| 31 dnl Redefine AC_CONFIG_SUBDIRS so aclocal pulls in this file | |
| 32 dnl when needed. | |
| 33 | |
| 34 ifdef([m4_PACKAGE_VERSION], | |
| 35 [dnl AC_DEFUN a commonly used macro so this file is picked up. | |
| 36 m4_copy([AC_PREREQ], [_AC_PREREQ]) | |
| 37 AC_DEFUN([AC_PREREQ], [frob]) | |
|
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38 m4_copy_force([_AC_PREREQ], [AC_PREREQ]) |
| 0 | 39 |
| 40 | |
| 41 dnl Ensure exactly this Autoconf version is used | |
| 42 m4_ifndef([_GCC_AUTOCONF_VERSION], | |
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43 [m4_define([_GCC_AUTOCONF_VERSION], [2.64])]) |
| 0 | 44 |
| 45 dnl Test for the exact version when AC_INIT is expanded. | |
| 46 dnl This allows to update the tree in steps (for testing) | |
| 47 dnl by putting | |
| 48 dnl m4_define([_GCC_AUTOCONF_VERSION], [X.Y]) | |
| 49 dnl in configure.ac before AC_INIT, | |
| 50 dnl without rewriting this file. | |
| 51 dnl Or for updating the whole tree at once with the definition above. | |
| 52 AC_DEFUN([_GCC_AUTOCONF_VERSION_CHECK], | |
| 53 [m4_if(m4_defn([_GCC_AUTOCONF_VERSION]), | |
| 54 m4_defn([m4_PACKAGE_VERSION]), [], | |
| 55 [m4_fatal([Please use exactly Autoconf ]_GCC_AUTOCONF_VERSION[ instead of ]m4_defn([m4_PACKAGE_VERSION])[.])]) | |
| 56 ]) | |
| 57 m4_define([AC_INIT], m4_defn([AC_INIT])[ | |
| 58 _GCC_AUTOCONF_VERSION_CHECK | |
| 59 ]) | |
| 60 | |
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61 |
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62 dnl Turn AC_DISABLE_OPTION_CHECKING into a no-op if not defined. |
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63 m4_ifndef([AC_DISABLE_OPTION_CHECKING], |
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64 [m4_define([AC_DISABLE_OPTION_CHECKING])]) |
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65 |
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66 |
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67 dnl Fix 2.64 cross compile detection for AVR and RTEMS |
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68 dnl by not trying to compile fopen. |
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69 m4_if(m4_defn([m4_PACKAGE_VERSION]), [2.64], |
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70 [m4_foreach([_GCC_LANG], [C, C++, Fortran, Fortran 77], |
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71 [m4_define([_AC_LANG_IO_PROGRAM(]_GCC_LANG[)], m4_defn([AC_LANG_PROGRAM(]_GCC_LANG[)]))])]) |
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72 |
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77e2b8dfacca
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73 |
| 0 | 74 m4_version_prereq([2.60],, [ |
| 75 dnl We use $ac_pwd in some of the overrides below; ensure its definition | |
| 76 m4_divert_push([PARSE_ARGS])dnl | |
| 77 ac_pwd=`pwd` | |
| 78 m4_divert_pop([PARSE_ARGS])dnl | |
| 79 ]) | |
| 80 | |
| 81 | |
| 82 m4_version_prereq([2.60],, [ | |
| 83 | |
| 84 # _AC_OUTPUT_SUBDIRS | |
| 85 # ------------------ | |
| 86 # This is a subroutine of AC_OUTPUT, but it does not go into | |
| 87 # config.status, rather, it is called after running config.status. | |
| 88 m4_define([_AC_OUTPUT_SUBDIRS], | |
| 89 [ | |
| 90 # | |
| 91 # CONFIG_SUBDIRS section, as fixed in confsubdir.m4. | |
| 92 # | |
| 93 if test "$no_recursion" != yes; then | |
| 94 | |
| 95 # Remove --cache-file and --srcdir arguments so they do not pile up. | |
| 96 ac_sub_configure_args= | |
| 97 ac_prev= | |
| 98 eval "set x $ac_configure_args" | |
| 99 shift | |
| 100 for ac_arg | |
| 101 do | |
| 102 if test -n "$ac_prev"; then | |
| 103 ac_prev= | |
| 104 continue | |
| 105 fi | |
| 106 case $ac_arg in | |
| 107 -cache-file | --cache-file | --cache-fil | --cache-fi \ | |
| 108 | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c) | |
| 109 ac_prev=cache_file ;; | |
| 110 -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \ | |
| 111 | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* \ | |
| 112 | --c=*) | |
| 113 ;; | |
| 114 --config-cache | -C) | |
| 115 ;; | |
| 116 -srcdir | --srcdir | --srcdi | --srcd | --src | --sr) | |
| 117 ac_prev=srcdir ;; | |
| 118 -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*) | |
| 119 ;; | |
| 120 -prefix | --prefix | --prefi | --pref | --pre | --pr | --p) | |
| 121 ac_prev=prefix ;; | |
| 122 -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*) | |
| 123 ;; | |
| 124 *) | |
| 125 case $ac_arg in | |
| 126 *\'*) ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; | |
| 127 esac | |
| 128 ac_sub_configure_args="$ac_sub_configure_args '$ac_arg'" ;; | |
| 129 esac | |
| 130 done | |
| 131 | |
| 132 # Always prepend --prefix to ensure using the same prefix | |
| 133 # in subdir configurations. | |
| 134 ac_arg="--prefix=$prefix" | |
| 135 case $ac_arg in | |
| 136 *\'*) ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; | |
| 137 esac | |
| 138 ac_sub_configure_args="$ac_arg $ac_sub_configure_args" | |
| 139 | |
| 140 ac_popdir=`pwd` | |
| 141 for ac_dir in : $subdirs; do test "x$ac_dir" = x: && continue | |
| 142 | |
| 143 # Do not complain, so a configure script can configure whichever | |
| 144 # parts of a large source tree are present. | |
| 145 test -d "$srcdir/$ac_dir" || continue | |
| 146 | |
| 147 AC_MSG_NOTICE([configuring in $ac_dir]) | |
| 148 AS_MKDIR_P(["$ac_dir"]) | |
| 149 _AC_SRCPATHS(["$ac_dir"]) | |
| 150 | |
| 151 cd "$ac_dir" | |
| 152 | |
| 153 # Check for guested configure; otherwise get Cygnus style configure. | |
| 154 if test -f "$ac_srcdir/configure.gnu"; then | |
| 155 ac_sub_configure=$ac_srcdir/configure.gnu | |
| 156 elif test -f "$ac_srcdir/configure"; then | |
| 157 ac_sub_configure=$ac_srcdir/configure | |
| 158 elif test -f "$ac_srcdir/configure.in"; then | |
| 159 # This should be Cygnus configure. | |
| 160 ac_sub_configure=$ac_aux_dir/configure | |
| 161 else | |
| 162 AC_MSG_WARN([no configuration information is in $ac_dir]) | |
| 163 ac_sub_configure= | |
| 164 fi | |
| 165 | |
| 166 # The recursion is here. | |
| 167 if test -n "$ac_sub_configure"; then | |
| 168 # Make the cache file name correct relative to the subdirectory. | |
| 169 case $cache_file in | |
| 170 [[\\/]]* | ?:[[\\/]]* ) ac_sub_cache_file=$cache_file ;; | |
| 171 *) # Relative path. | |
| 172 ac_sub_cache_file=$ac_top_builddir$cache_file ;; | |
| 173 esac | |
| 174 | |
| 175 AC_MSG_NOTICE([running $SHELL $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir]) | |
| 176 # The eval makes quoting arguments work. | |
| 177 eval "\$SHELL \"\$ac_sub_configure\" $ac_sub_configure_args \ | |
| 178 --cache-file=\"\$ac_sub_cache_file\" --srcdir=\"\$ac_srcdir\"" || | |
| 179 AC_MSG_ERROR([$ac_sub_configure failed for $ac_dir]) | |
| 180 fi | |
| 181 | |
| 182 cd "$ac_popdir" | |
| 183 done | |
| 184 fi | |
| 185 ])# _AC_OUTPUT_SUBDIRS | |
| 186 ]) | |
| 187 | |
| 188 m4_version_prereq([2.63],, [ | |
| 189 | |
| 190 # _AC_ARG_VAR_VALIDATE | |
| 191 # -------------------- | |
| 192 # The code is the same as autoconf 2.59, but with a more lenient check | |
| 193 # on precious variables and an output of pwd that have been added in | |
| 194 # autoconf 2.62. | |
| 195 m4_define([_AC_ARG_VAR_VALIDATE], | |
| 196 [m4_divert_text([INIT_PREPARE], | |
| 197 [# Check that the precious variables saved in the cache have kept the same | |
| 198 # value. | |
| 199 ac_cache_corrupted=false | |
| 200 for ac_var in `(set) 2>&1 | | |
| 201 sed -n 's/^ac_env_\([[a-zA-Z_0-9]]*\)_set=.*/\1/p'`; do | |
| 202 eval ac_old_set=\$ac_cv_env_${ac_var}_set | |
| 203 eval ac_new_set=\$ac_env_${ac_var}_set | |
| 204 eval ac_old_val="\$ac_cv_env_${ac_var}_value" | |
| 205 eval ac_new_val="\$ac_env_${ac_var}_value" | |
| 206 case $ac_old_set,$ac_new_set in | |
| 207 set,) | |
| 208 AS_MESSAGE([error: `$ac_var' was set to `$ac_old_val' in the previous run], 2) | |
| 209 ac_cache_corrupted=: ;; | |
| 210 ,set) | |
| 211 AS_MESSAGE([error: `$ac_var' was not set in the previous run], 2) | |
| 212 ac_cache_corrupted=: ;; | |
| 213 ,);; | |
| 214 *) | |
| 215 if test "x$ac_old_val" != "x$ac_new_val"; then | |
| 216 # differences in whitespace do not lead to failure. | |
| 217 ac_old_val_w=`echo x $ac_old_val` | |
| 218 ac_new_val_w=`echo x $ac_new_val` | |
| 219 if test "$ac_old_val_w" != "$ac_new_val_w"; then | |
| 220 AS_MESSAGE([error: `$ac_var' has changed since the previous run:], 2) | |
| 221 ac_cache_corrupted=: | |
| 222 else | |
| 223 AS_MESSAGE([warning: ignoring whitespace changes in `$ac_var' since the previous run:], 2) | |
| 224 eval $ac_var=\$ac_old_val | |
| 225 fi | |
| 226 AS_MESSAGE([ former value: `$ac_old_val'], 2) | |
| 227 AS_MESSAGE([ current value: `$ac_new_val'], 2) | |
| 228 fi;; | |
| 229 esac | |
| 230 # Pass precious variables to config.status. | |
| 231 if test "$ac_new_set" = set; then | |
| 232 case $ac_new_val in | |
| 233 dnl If you change this globbing pattern, test it on an old shell -- | |
| 234 dnl it's sensitive. Putting any kind of quote in it causes syntax errors. | |
| 235 [ *" "*|*" "*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)] | |
| 236 ac_arg=$ac_var=`echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;; | |
| 237 *) ac_arg=$ac_var=$ac_new_val ;; | |
| 238 esac | |
| 239 case " $ac_configure_args " in | |
| 240 *" '$ac_arg' "*) ;; # Avoid dups. Use of quotes ensures accuracy. | |
| 241 *) ac_configure_args="$ac_configure_args '$ac_arg'" ;; | |
| 242 esac | |
| 243 fi | |
| 244 done | |
| 245 if $ac_cache_corrupted; then | |
| 246 AS_MESSAGE([error: in `$ac_pwd':], 2) | |
| 247 AS_MESSAGE([error: changes in the environment can compromise the build], 2) | |
| 248 AS_ERROR([run `make distclean' and/or `rm $cache_file' and start over]) | |
| 249 fi])dnl | |
| 250 ])# _AC_ARG_VAR_VALIDATE | |
| 251 ]) | |
| 252 | |
| 253 m4_version_prereq([2.63],, [ | |
| 254 | |
| 255 # AC_MSG_FAILURE(ERROR, [EXIT-STATUS = 1]) | |
| 256 # ---------------------------------------- | |
| 257 # This is the same code as in 2.59 and 2.61, except it also outputs pwd. | |
| 258 m4_define([AC_MSG_FAILURE], | |
| 259 [{ AS_MESSAGE([error: in `$ac_pwd':], 2) | |
| 260 AC_MSG_ERROR([$1 | |
| 261 See `config.log' for more details.], [$2]); }]) | |
| 262 ]) | |
| 263 ]) | |
| 264 | |
| 265 m4_version_prereq([2.60],, [ | |
| 266 dnl M4 1.6 and newer implement m4wrap using FIFO semantics, as required | |
| 267 dnl by Posix; earlier versions used LIFO semantics. Unfortunately, | |
| 268 dnl Autoconf versions before 2.60 require those LIFO semantics, so | |
| 269 dnl make sure to give it to them. | |
| 270 m4_define([m4_wrap], [m4_ifdef([_$0_text], | |
| 271 [m4_define([_$0_text], [$1]m4_defn([_$0_text]))], | |
| 272 [m4_define([_$0_text], [$1])m4_builtin([m4wrap], | |
| 273 [m4_default(m4_defn([_$0_text])m4_undefine([_$0_text]))])])]) | |
| 274 ]) |