buildlib/tl_canon.m4

   1 # Our own versions of the other canonicalizing stuff
   2
   3 dnl replace AC_CANONICAL_xxx
   4
   5 undefine([AC_CANONICAL_HOST])
   6 define([AC_CANONICAL_HOST], [tl_CANONICAL_HOST])
   7 undefine([AC_CANONICAL_BUILD])
   8 define([AC_CANONICAL_BUILD], [tl_CANONICAL_BUILD])
   9 undefine([AC_CANONICAL_TARGET])
  10 define([AC_CANONICAL_TARGET], [tl_CANONICAL_TARGET])
  11 undefine([AC_CANONICAL_SYSTEM])
  12 define([AC_CANONICAL_SYSTEM], [tl_CANONICAL_SYSTEM])
  13
  14 dnl Canonicalize the host, target, and build system types.
  15 AC_DEFUN(tl_CANONICAL_SYSTEM,
  16 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
  17 AC_PROVIDE([AC_CANONICAL_SYSTEM])dnl
  18 AC_BEFORE([$0], [AC_ARG_PROGRAM])
  19 # Do some error checking and defaulting for the host and target type.
  20 # The inputs are:
  21 #    configure --host=HOST --target=TARGET --build=BUILD NONOPT
  22 #
  23 # The rules are:
  24 # 1. You are not allowed to specify --host, --target, and nonopt at the
  25 #    same time.
  26 # 2. Host defaults to nonopt.
  27 # 3. If nonopt is not specified, then host defaults to the current host,
  28 #    as determined by config.guess.
  29 # 4. Target and build default to nonopt.
  30 # 5. If nonopt is not specified, then target and build default to host.
  31
  32 # The aliases save the names the user supplied, while $host etc.
  33 # will get canonicalized.
  34 case $host---$target---$nonopt in
  35 NONE---*---* | *---NONE---* | *---*---NONE) ;;
  36 *) AC_MSG_ERROR(can only configure for one host and one target at a time) ;;
  37 esac
  38
  39 tl_CANONICAL_HOST
  40 tl_CANONICAL_TARGET
  41 tl_CANONICAL_BUILD
  42 test "$host_alias" != "$target_alias" &&
  43   test "$program_prefix$program_suffix$program_transform_name" = \
  44     NONENONEs,x,x, &&
  45   program_prefix=${target_alias}-
  46 AC_CHECK_TOOL_PREFIX
  47 ])
  48
  49 dnl Subroutines of tl_CANONICAL_SYSTEM.
  50
  51 AC_DEFUN(tl_CANONICAL_HOST,
  52 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
  53 AC_PROVIDE([AC_CANONICAL_HOST])dnl
  54
  55 # Make sure we can run config.sub.
  56 if $ac_config_sub sun4 >/dev/null 2>&1; then :
  57 else AC_MSG_ERROR(can not run $ac_config_sub)
  58 fi
  59
  60 AC_MSG_CHECKING(host system type)
  61
  62 dnl Set host_alias.
  63
  64 if test "${GCC-no}" = "yes" -a "$nonopt" = "NONE"; then
  65 changequote(, )dnl
  66   libgcc="`${CC} --print-libgcc-file-name`"
  67   host_alias="`expr ${libgcc} : '.*/gcc-lib/\([^/]*\)/.*'`"
  68   case ${host_alias} in
  69    *-linux{,elf,aout})
  70     host_alias="`echo ${host_alias} | sed 's/\([^-]*\)-linux.*/\1/'`"
  71 changequote([, ])dnl
  72     if ar p "${libgcc}" __main.o 2>/dev/null | file - 2>/dev/null | grep ELF >/dev/null; then
  73       host_alias="${host_alias}-linux"
  74     else
  75       host_alias="${host_alias}-linuxaout"
  76     fi ;;
  77   esac
  78   host_guessed=y
  79 else
  80   host_alias=$host
  81   case "$host_alias" in
  82   NONE)
  83     case "$nonopt" in
  84     NONE)
  85       if host_alias=`$ac_config_guess`; then host_guessed=y
  86       else AC_MSG_ERROR(can not guess host type; you must specify one)
  87       fi ;;
  88     *) host_alias=$nonopt ;;
  89     esac ;;
  90   esac
  91 fi
  92
  93 dnl Set the other host vars.
  94 changequote(<<, >>)dnl
  95 host=`$ac_config_sub $host_alias`
  96 host_cpu=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
  97 host_vendor=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
  98 host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
  99 changequote([, ])dnl
 100 AC_MSG_RESULT($host)
 101 AC_SUBST(host)dnl
 102 AC_SUBST(host_alias)dnl
 103 AC_SUBST(host_cpu)dnl
 104 AC_SUBST(host_vendor)dnl
 105 AC_SUBST(host_os)dnl
 106 ])
 107
 108 dnl Internal use only.
 109 AC_DEFUN(tl_CANONICAL_TARGET,
 110 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
 111 AC_REQUIRE([AC_PROG_CC])dnl
 112 AC_REQUIRE([AC_CANONICAL_HOST])dnl
 113 AC_PROVIDE([AC_CANONICAL_TARGET])dnl
 114 AC_MSG_CHECKING(target system type)
 115
 116 dnl Set target_alias.
 117 target_alias=$target
 118 case "$target_alias" in
 119 NONE)
 120   case $nonopt in
 121   NONE)
 122   target_cpu="`dpkg --print-architecture`"
 123   if test "$target_cpu" = ""; then
 124    target_alias=$host_alias
 125   else
 126    target_alias="`echo ${host_alias} | sed 's/[^-]*-/${target_cpu}-/'`"
 127   fi
 128   ;;
 129   *) target_alias=$nonopt ;;
 130   esac ;;
 131 esac
 132
 133 dnl Set the other target vars.
 134 if test $target_alias = $host_alias; then
 135   target=$host
 136   target_cpu=$host_cpu
 137   target_vendor=$host_vendor
 138   target_os=$host_os
 139 elif test $target_alias = "$build_alias"; then
 140   target=$build
 141   target_cpu=$build_cpu
 142   target_vendor=$build_vendor
 143   target_os=$build_os
 144 else
 145 changequote(<<, >>)dnl
 146   target=`$ac_config_sub $target_alias`
 147   target_cpu=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
 148   target_vendor=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
 149   target_os=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 150 changequote([, ])dnl
 151 fi
 152 AC_MSG_RESULT($target)
 153 AC_SUBST(target)dnl
 154 AC_SUBST(target_alias)dnl
 155 AC_SUBST(target_cpu)dnl
 156 AC_SUBST(target_vendor)dnl
 157 AC_SUBST(target_os)dnl
 158 ])
 159
 160 AC_DEFUN(tl_CANONICAL_BUILD,
 161 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
 162 AC_REQUIRE([AC_CANONICAL_HOST])dnl
 163 AC_PROVIDE([AC_CANONICAL_BUILD])dnl
 164
 165 # Make sure we can run config.sub.
 166 #if $ac_config_sub sun4 >/dev/null 2>&1; then :
 167 #else AC_MSG_ERROR(can not run $ac_config_sub)
 168 #fi
 169
 170 AC_MSG_CHECKING(build system type)
 171
 172 dnl Set build_alias.
 173 build_alias=$build
 174 case "$build_alias" in
 175 NONE)
 176   case $nonopt in
 177   NONE)
 178     if test "$host_guessed" = "y"; then
 179       build_alias=$host_alias
 180     else
 181       if build_alias=`$ac_config_guess`; then :
 182       else build_alias=$host_alias
 183       fi
 184     fi ;;
 185   *) build_alias=$nonopt ;;
 186   esac ;;
 187 esac
 188
 189 dnl Set the other build vars.
 190 if test $build_alias = $host_alias; then
 191   build=$host
 192   build_cpu=$host_cpu
 193   build_vendor=$host_vendor
 194   build_os=$host_os
 195 else
 196 changequote(<<, >>)dnl
 197   build=`$ac_config_sub $build_alias`
 198   build_cpu=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
 199   build_vendor=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
 200   build_os=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 201 changequote([, ])dnl
 202 fi
 203 AC_MSG_RESULT($build)
 204 AC_SUBST(build)dnl
 205 AC_SUBST(build_alias)dnl
 206 AC_SUBST(build_cpu)dnl
 207 AC_SUBST(build_vendor)dnl
 208 AC_SUBST(build_os)dnl
 209 ])