crosstool-ng: configure@06163d8f6474

     1 #!/bin/sh

     3 myname="${0##*/}"

     5 VERSION=$( cat .version )

     6 DATE=$( date +%Y%m%d )

     8 PREFIX_DEFAULT=/usr/local

    10 BINDIR_set=

    11 LIBDIR_set=

    12 DOCDIR_set=

    13 MANDIR_set=

    14 LOCAL_set=

    15 FORCE=

    17 do_quit=

    19 # Simply print the error message, and exit. Obvious, he?

    20 do_error() {

    21     printf "${myname}: ${@}\n"

    22     exit 1

    23 }

    25 # Given an option string and the following argument,

    26 # echoes the value of the option.

    27 # If --var=val => echoes val and returns 0, meaning second arg was not consumed

    28 # If --var val => echoes val and returns non null, meaning second arg was used

    29 get_optval(){

    30     case "$1" in

    31         --*=?*)

    32             printf "${1#*=}"

    33             return 0

    34             ;;

    35         *)

    36             printf "${2}"

    37             return 1

    38             ;;

    39     esac

    40 }

    42 # The set_xxx functions will set the corresponding configuration variable

    43 # They return 0 if second arg was not consumed, and non-zero if it was consumed.

    44 set_prefix() {

    45     PREFIX="$( get_optval "$1" "$2" )"

    46 }

    47 set_bindir() {

    48     BINDIR_set=1

    49     BINDIR="$( get_optval "$1" "$2" )"

    50 }

    51 set_libdir() {

    52     LIBDIR_set=1

    53     LIBDIR="$( get_optval "$1" "$2" )"

    54 }

    55 set_docdir() {

    56     DOCDIR_set=1

    57     DOCDIR="$( get_optval "$1" "$2" )"

    58 }

    59 set_mandir() {

    60     MANDIR_set=1

    61     MANDIR="$( get_optval "$1" "$2" )"

    62 }

    63 set_tool() {

    64     local var_name="${1%%=*}"

    65     var_name="${var_name#--with-}"

    66     eval ${var_name}="\$( get_optval "$1" "$2" )"

    67 }

    69 # var_list is a list of variables, each one holding a path to a

    70 # tool, either detected by ./configure, or specified by the user.

    71 var_list=""

    72 kconfig_list=""

    74 # This function adds a variable name to the above list of variable names.

    75 # $1: the name of the variable to add to the list

    76 add_to_var_list() {

    77     local v

    78     for v in ${var_list}; do

    79         [ "${v}" = "${1}" ] && return 0

    80     done

    81     var_list="${var_list} ${1}"

    82 }

    83 add_to_kconfig_list() {

    84     local k

    85     for k in ${kconfig_list}; do

    86         [ "${k}" = "${1}" ] && return 0

    87     done

    88     kconfig_list="${kconfig_list} ${1}"

    89 }

    91 # A function to test for required tools/headers/libraries

    92 # Return 0 (true) if found, !0 (false) if not found

    93 #

    94 # $*: [prog|inc|lib]=<name[ name...]>

    95 #     the name(s) of tool(s) to test for

    96 #     mandatory

    97 #       eg: prog=bash   prog="curl wget"

    98 # $*: var=<var_name>

    99 #     the name of the variable to test and set

   100 #     optional

   101 #       eg: var=bash    if ${bash} is set and non-null, use that,

   102 #                       else check for bash and set bash=$(which bash)

   103 # $*: ver=<regexp>

   104 #     for each 'prog', test if $(prog --version) matches 'regexp'

   105 #     optional

   106 #       eg: ver='^GNU bash, version [34]\.'

   107 # $*: lib_exts=<extension[ extension...]>

   108 #     the list of allowed library extension

   109 #     mandatory

   110 #       eg: lib_exts="so dylib"     lib_exts="so dylib a"

   111 # $*: err=<error_message>

   112 #     the error message to print if tool is missing

   113 #     optional, defaults to: '${prog}: none found'

   114 #       eg: err="'bash' 3.x or above was not found"

   115 #     Note: err may be printed by caller, not us

   116 # $*: kconfig=<var_name>

   117 #     the name of a variable to pass down to kconfig if

   118 #     the prog/inc/lib was found

   119 #     optional, defaults to none

   120 #       eg: kconfig=has_libncurses

   121 # $*: skip=[y|n|]

   122 #     if set to 'y', skip the test, but still register the

   123 #     kconfig and var variables; if 'n' or empty, do the

   124 #     test.

   125 #     optional, default to 'n'

   126 #       eg: skip="${static_link_ko}"

   127 check_for() {

   128     local lib_exts

   129     local skip

   130     local val

   131     local item

   132     local where

   133     local status

   134     local ext

   136     # Note: prog/inc/lib and var/kconfig/ver/err are set here,

   137     # but declared by the caller (because it needs it)

   138     for item in "${@}"; do

   139         case "${item}" in

   140             prog=*|inc=*|lib=*|var=*|ver=*|err=*|kconfig=*|lib_exts=*|skip=*)

   141                 eval ${item%%=*}=\"${item#*=}\"

   142                 ;;

   143             *)  do_error "check_for: incorrect parameters: '${item}'";;

   144         esac

   145     done

   147     case "${prog}:${inc}:${lib}" in

   148         ?*:?*:|?*::?*|:?*:?*|?*:?*:?*)

   149             if [ -n "${var}" ]; then

   150                 do_error "check_for: the use of var is not compatible with passing several of [prog|inc|lib] at once"

   151             fi

   152             ;;

   153         ::) do_error "check_for: [prog|inc|lib] is mandatory";;

   154     esac

   156     if [ -n "${var}" ]; then

   157         add_to_var_list "${var}"

   158     fi

   159     if [ -n "${kconfig}" ]; then

   160         add_to_kconfig_list "${kconfig}"

   161     fi

   163     if [ "${skip}" = "y" ]; then

   164         return 0

   165     fi

   167     if [ -n "${prog}" ]; then

   168         for item in ${prog}; do

   169             printf "Checking for '${item}'... "

   170             if [ -n "${var}" ]; then

   171                 eval val="\${${var}}"

   172                 if [ -n "${val}" ]; then

   173                     status="${val} (cached)\n"

   174                     break

   175                 fi

   176             fi

   177             where="$( which "${item}" 2>/dev/null )"

   178             if [ -z "${where}" ]; then

   179                 printf "no\n"

   180                 continue

   181             elif [ -n "${ver}" ]; then

   182                 str=$( LC_ALL=C "${where}" --version 2>&1   \

   183                        |grep -E "${ver}"                    \

   184                        |head -n 1

   185                      )

   186                 if [ -z "${str}" ]; then

   187                     printf "no\n"

   188                     unset where

   189                     continue

   190                 fi

   191             fi

   192             status="${where}"

   193             break

   194         done

   195         if [ -z "${status}" ]; then

   196             return 1

   197         fi

   198         printf "${status}\n"

   199         unset status

   200     fi

   202     if [ -n "${inc}" ]; then

   203         for item in ${inc}; do

   204             printf "Checking for '${item}'... "

   205             if printf "#include \"${item}\"" |gcc -x c -c - -o /dev/null >/dev/null 2>&1; then

   206                 where="${item}"

   207                 status=yes

   208                 break;

   209             fi

   210             printf "no\n"

   211         done

   212         if [ -z "${status}" ]; then

   213             return 1

   214         fi

   215         printf "${status}\n"

   216         unset status

   217     fi

   219     if [ -n "${lib}" ]; then

   220         if [ -z "${lib_exts}" ]; then

   221             do_error "check_for: no library extension specified for '${lib}'"

   222         fi

   223         for item in ${lib}; do

   224             for ext in ${lib_exts}; do

   225                 printf "Checking for '${item}.${ext}'... "

   226                 where="$( gcc -print-file-name="${item}.${ext}" )"

   227                 if [ "${where}" != "${item}.${ext}" ]; then

   228                     where="$( readlink "${where}" )"

   229                     status=yes

   230                     break 2;

   231                 fi

   232                 printf "no\n"

   233             done

   234         done

   235         if [ -z "${status}" ]; then

   236             return 1

   237         fi

   238         printf "${status}\n"

   239         unset status

   240     fi

   242     if [ -n "${var}" ]; then

   243         eval ${var}='"'"${where}"'"'

   244     fi

   245     if [ -n "${kconfig}" ]; then

   246         eval ${kconfig}=y

   247     fi

   248 }

   250 # This function checks for a tool, and aborts if not found

   251 # See check_for(), above, for how to call has_or_abort

   252 has_or_abort() {

   253     # We declare these 6 variables here, although they are

   254     # set in check_for(), called below

   255     local prog inc lib

   256     local var ver err kconfig

   258     if ! check_for "$@"; then

   259         printf " * A mandatory dependency is missing, or version mis-match:\n"

   260         printf " * - ${err:-${prog}${inc}${lib}: none found}\n"

   261         if [ -n "${var}" ]; then

   262             printf " * --> You can give the path to this tool using: --with-${var}=PATH\n"

   263         fi

   264         printf "\n"

   265         # Bail out if --force is not specified

   266         [ -z "${FORCE}" ] && do_error "Bailing out..."

   267         printf "<*                                          *>\n"

   268         printf "<*            FORCE in action:              *>\n"

   269         printf "<* Continuing despite missing pre-requisite *>\n"

   270         printf "<*          Prepare for breakage            *>\n"

   271         printf "<*                                          *>\n"

   272         printf "\n"

   273     fi

   274 }

   276 # This function checks for a tool, and warns if not found

   277 # See check_for(), above, for how to call has_or_abort

   278 # Note: if err is not set, then no error message is printed

   279 has_or_warn() {

   280     # We declare these 6 variables here, although they are

   281     # set in check_for(), called below

   282     local prog inc lib

   283     local var ver err kconfig

   285     if ! check_for "$@"; then

   286         printf " * An optional dependency is missing, some features will be disabled"

   287         printf "${err:+:\n * - ${err}}\n"

   288         if [ -n "${var}" ]; then

   289             printf " * --> You can give the path to this tool using: --with-${var}=PATH\n"

   290         fi

   291     fi

   292 }

   294 do_help() {

   295     cat <<__EOF__

   296 \`configure' configures crosstool-NG-${VERSION} to adapt to many kind of systems.

   298 USAGE: ./configure [OPTION]...

   300 Defaults for the options are specified in brackets.

   302 Configuration:

   303   -h, --help              display this help and exit

   304       --force             force configure to continue, even in case

   305                           some pre-requisites are missing

   307 Installation directories:

   308   --prefix=PREFIX         install files in PREFIX [${PREFIX_DEFAULT}]

   309   --local                 don't install, and use current directory

   311 By default, \`make install' will install all the files in

   312 \`${PREFIX_DEFAULT}/bin', \`${PREFIX_DEFAULT}/lib' etc.  You can specify

   313 an installation prefix other than \`${PREFIX_DEFAULT}' using \`--prefix',

   314 for instance \`--prefix=\${HOME}'.

   316 For better control, use the options below.

   318 Fine tuning of the installation directories:

   319   --bindir=DIR            user executables [PREFIX/bin]

   320   --libdir=DIR            object code libraries [PREFIX/lib]

   321   --docdir=DIR            info documentation [PREFIX/share/doc]

   322   --mandir=DIR            man documentation [PREFIX/share/man]

   324 Optional Features:

   325   --with-install=PATH     Specify the full PATH to GNU install

   326   --with-make=PATH        Specify the full PATH to GNU make >= 3.80

   327   --with-grep=PATH        Specify the full PATH to GNU grep

   328   --with-sed=PATH         Specify the full PATH to GNU sed

   329   --with-bash=PATH        Specify the full PATH to bash >= 3.0

   330 __EOF__

   331 }

   333 #---------------------------------------------------------------------

   334 # Set user's options

   336 while [ $# -ne 0 ]; do

   337     case "$1" in

   338         --local)    LOCAL_set="y"; shift;;

   339         --prefix*)  set_prefix "$1" "$2" && shift || shift 2;;

   340         --bindir*)  set_bindir "$1" "$2" && shift || shift 2;;

   341         --libdir*)  set_libdir "$1" "$2" && shift || shift 2;;

   342         --docdir*)  set_docdir "$1" "$2" && shift || shift 2;;

   343         --mandir*)  set_mandir "$1" "$2" && shift || shift 2;;

   344         --with-*)   set_tool   "$1" "$2" && shift || shift 2;;

   345         --force)    FORCE=1; shift;;

   346         --help|-h)  do_help; exit 0;;

   347         # Skip, auto-stuff compatibility

   348         --build=*|--host=*|--infodir=*|--datadir=*|--sysconfdir=*|--localstatedir=*) shift;;

   349         --build|--host|--infodir|--datadir|--sysconfdir|--localstatedir)             shift 2;;

   350         *)          printf "Unrecognised option: '${1}'\n"; do_help; exit 1;;

   351     esac

   352 done

   354 # Use defaults

   355 [ -z "${PREFIX}" ] && set_prefix "" "${PREFIX_DEFAULT}"

   357 # Special case when installing locally

   358 if [ "${LOCAL_set}" = "y" ]; then

   359     set_prefix "" "$( pwd )"

   360     set_bindir "" "$( pwd )"

   361     set_libdir "" "$( pwd )"

   362     set_docdir "" "$( pwd )/docs"

   363     set_mandir "" "$( pwd )/docs"

   364 fi

   366 #---------------------------------------------------------------------

   367 # Some sanity checks, now

   369 # We check for grep and sed manually, because they are used in check_for()

   370 printf "Checking for 'grep'... "

   371 if [ -n "${grep}" ]; then

   372     printf "${grep} (cached)\n"

   373 else

   374     grep="$( which grep 2>/dev/null )"

   375     if [ -z "${grep}" ]; then

   376         printf "not found\n"

   377     else

   378         printf "${grep}\n"

   379         printf "Checking whether '${grep}' supports -E... "

   380         if echo 'foo' |"${grep}" -E 'foo' >/dev/null 2>&1; then

   381             printf "yes\n"

   382         else

   383             printf "no\n"

   384             grep=

   385         fi

   386     fi

   387 fi

   388 if [ -z "${grep}" ]; then

   389     printf "Either you are missing entirely the needed tool,\n"

   390     printf "or the version you have is too old.\n"

   391     printf "You can give the path to this tool using: --with-grep=PATH\n"

   392     do_error "Bailing out..."

   393 fi

   394 add_to_var_list grep

   396 printf "Checking for 'sed'... "

   397 if [ -n "${sed}" ]; then

   398     printf "${sed} (cached)\n"

   399 else

   400     sed="$( which sed 2>/dev/null )"

   401     if [ -z "${sed}" ]; then

   402         printf "not found\n"

   403     else

   404         printf "${sed}\n"

   405         printf "Checking whether '${sed}' supports -i and -e... "

   406         touch .ct-ng.sed.test

   407         if "${sed}" -r -i -e 's/foo/bar/' .ct-ng.sed.test >/dev/null 2>&1; then

   408             printf "yes\n"

   409         else

   410             printf "no\n"

   411             sed=

   412         fi

   413         rm -f .ct-ng.sed.test

   414     fi

   415 fi

   416 if [ -z "${sed}" ]; then

   417     printf "Either you are missing entirely the needed tool,\n"

   418     printf "or the version you have is too old.\n"

   419     printf "You can give the path to this tool using: --with-sed=PATH\n"

   420     do_error "Bailing out..."

   421 fi

   422 add_to_var_list sed

   424 # The regular list of tools we can now easily check for

   425 has_or_abort prog=bash                              \

   426              var=bash                               \

   427              ver='^GNU bash, version (3\.[1-9]|4)'  \

   428              err="'bash' 3.1 or above was not found"

   429 has_or_abort prog=cut

   430 has_or_abort prog=install var=install

   431 has_or_abort prog=make                                  \

   432              var=make                                   \

   433              ver='^GNU Make (3.[89][[:digit:]]|[4-9])'  \

   434              err="GNU 'make' 3.80 or above was not found"

   435 has_or_abort prog=gcc

   436 has_or_abort prog="awk gawk" ver='^GNU Awk' err="GNU 'awk' was not found"

   437 has_or_abort prog=bison

   438 has_or_abort prog=flex

   439 has_or_abort prog=makeinfo

   440 has_or_abort prog=automake                                                      \

   441              ver='\(GNU automake\) (1\.[[:digit:]]{2,}|[2-9][[:digit:]]*\.)'    \

   442              err="'automake' 1.10 or above was not found"

   443 has_or_abort prog=libtool                                                                           \

   444              var=libtool                                                                            \

   445              ver='\(GNU libtool.*\) (2[[:digit:]]*\.|1\.6[[:digit:]]*\.|1\.5\.[2-9][[:digit:]]+)'   \

   446              err="'libtool' 1.5.26 or above was not found"

   447 has_or_abort prog=stat

   448 has_or_abort prog="curl wget"

   449 has_or_abort prog=cvs

   450 has_or_abort prog=patch

   451 has_or_abort prog=tar

   452 has_or_abort prog=gzip

   453 has_or_abort prog=bzip2

   454 has_or_abort prog=lzma

   455 has_or_abort prog=readlink

   456 has_or_abort prog=objcopy var=objcopy

   457 has_or_abort prog=objdump var=objdump

   458 has_or_abort prog=readelf var=readelf

   459 has_or_abort prog=patch var=patch

   461 # Host system checks

   463 printf "Checking for host system... "

   464 host="$( uname -s )"

   465 printf "%s\n" "${host}"

   466 case "${host}" in

   467     Linux)  ;;

   468     Cygwin) ;;

   469     *)

   470         printf " * Runing under %s is not fully tested\n" "${host}"

   471         printf " * You may encounter some weird behavior\n"

   472         ;;

   473 esac

   475 printf "Checking if static linking is possible... "

   476 static_link_ok=""

   477 case "${host}" in

   478     Darwin) ;;

   479     *)  tmp=.static.tmp

   480         if gcc -xc - -static -o "${tmp}" >/dev/null 2>&1 <<-_EOF_

   481 				int main() { return 0; }

   482 			_EOF_

   483         then

   484             static_link_ok="y"

   485         fi

   486         rm -f "${tmp}"

   487         ;;

   488 esac

   489 if [ "${static_link_ok}" = "y" ]; then

   490     static_link_ko=""

   491     printf "yes\n"

   492 else

   493     static_link_ko="y"

   494     printf "no\n"

   495     printf " * An optional host feature is missing, some features will be disabled:\n"

   496     printf " * - It will not be possible to statically link toolchain's binaries\n"

   497 fi

   498 add_to_kconfig_list static_link_ok

   500 # Library checks

   501 libs_exts="so dylib"

   502 if [ "${static_link_ok}" = "y" ]; then

   503     libs_exts="${libs_exts} a"

   504 fi

   506 ncurses_hdrs="ncurses/ncurses.h ncurses/curses.h ncurses.h curses.h"

   507 ncurses_libs="libncursesw libncurses libcurses"

   508 has_or_abort lib="${ncurses_libs}"                                          \

   509              lib_exts="${libs_exts}"                                        \

   510              inc="${ncurses_hdrs}"                                          \

   511              err="The 'ncurses' library is needed fo the menuconfig frontend"

   513 has_or_abort lib="libstdc++"            \

   514              lib_exts="${libs_exts}"    \

   515              err="The 'libstdc++' library is needed to build gcc"

   517 # Yes, we may be checking twice for libstdc++.a

   518 # The first is because we need one instance of libstdc++ (shared or static)

   519 # because it is needed for PPL; the second is because the static version is

   520 # required for static-linking, and if missing, the option is removed.

   521 has_or_warn  lib="libstdc++"                \

   522              lib_exts="a"                   \

   523              err="static 'libstdc++' is needed to statically link the toolchain's executables" \

   524              kconfig=has_static_libstdcxx   \

   525              skip="${static_link_ko}"

   527 has_or_warn  inc="expat.h"              \

   528              lib="libexpat"             \

   529              lib_exts="${libs_exts}"    \

   530              err="The 'expat' header file and library are needed to link cross-gdb's executables" \

   531              kconfig=has_expat

   533 # Yes, we may be checking twice for libexpat.a

   534 # The first is because we need one instance of libexpat (shared or static)

   535 # because it is needed for cross-gdb; the second is because the static version

   536 # is required for static-linking, and if missing, the option is removed.

   537 has_or_warn  lib="libexpat"             \

   538              lib_exts="a"               \

   539              err="static 'expat' is needed to statically link cross-gdb's executables" \

   540              kconfig=has_static_expat   \

   541              skip="${static_link_ko}"

   543 for v in 7 6 5 4; do

   544     python_incs="${python_incs} python2.${v}/Python.h"

   545     python_libs="${python_libs} libpython2.${v}"

   546 done

   547 has_or_warn  inc="${python_incs}"       \

   548              lib="${python_libs}"       \

   549              lib_exts="${libs_exts}"    \

   550              err="The 'python' header file and library are needed for some features of cross-gdb"

   552 #---------------------------------------------------------------------

   553 # Compute the version string

   555 # If this version is n hg clone, try to get the revision number

   556 # If we can't get the revision number, use date

   557 printf "\nComputing version string... "

   558 case "${VERSION}" in

   559     *+hg|hg)

   560         REVISION="$( hg id -n 2>/dev/null || true )"

   561         case "${REVISION}" in

   562             "")

   563                 VERSION="${VERSION}_unknown@$( date +%Y%m%d.%H%M%S )";;

   564             *)

   565                 VERSION="${VERSION}_$( hg id -b )@${REVISION%%+}_$( hg id -i )"

   566                 ;;

   567         esac

   568         # Arrange to have no / in the directory name, no need to create an

   569         # arbitrarily deep directory structure

   570         VERSION="$( printf "${VERSION}\n" |"${sed}" -r -e 's|/+|_|g;' )"

   571         ;;

   572 esac

   573 printf "${VERSION}\n"

   575 #---------------------------------------------------------------------

   576 # Compute and check install paths

   578 # Now we have the version string, we can build up the paths

   579 [ -z "${BINDIR_set}" ] && BINDIR="${PREFIX}/bin"

   580 [ -z "${LIBDIR_set}" ] && LIBDIR="${PREFIX}/lib"

   581 [ -z "${DOCDIR_set}" ] && DOCDIR="${PREFIX}/share/doc"

   582 [ -z "${MANDIR_set}" ] && MANDIR="${PREFIX}/share/man"

   584 # Install support files in our own sub-dir, so as not to mangle (system)

   585 # files and dirs, but only if not --local

   586 if [ -z "${LOCAL_set}" ]; then

   587     LIBDIR="${LIBDIR}/ct-ng-${VERSION}"

   588     DOCDIR="${DOCDIR}/ct-ng-${VERSION}"

   589 fi

   591 # Check that install PATHs are absolute

   592 for p in BIN LIB DOC MAN; do

   593     var="${p}DIR"

   594     eval v='"${'"${var}"'}"'

   595     case "${v}" in

   596         /*) ;;

   597         *)  do_error "'${var}' is not an absolute path: '${v}'"

   598     esac

   599 done

   601 #---------------------------------------------------------------------

   602 # That's all, folks!

   604 printf "Building up Makefile... "

   605 var_sed="$( for var_name in ${var_list}; do

   606                 eval echo 's,@@${var_name}@@,${'"${var_name}"'},g'

   607             done

   608           )"

   609 kconfig_sed="s/@@KCONFIG@@/$( for k_name in ${kconfig_list}; do

   610                                   eval printf \"${k_name}=\${${k_name}} \"

   611                               done

   612                             )/"

   613 "${sed}" -r -e "s,@@BINDIR@@,${BINDIR},g"       \

   614             -e "s,@@LIBDIR@@,${LIBDIR},g"       \

   615             -e "s,@@DOCDIR@@,${DOCDIR},g"       \

   616             -e "s,@@MANDIR@@,${MANDIR},g"       \

   617             -e "s,@@VERSION@@,${VERSION},g"     \

   618             -e "s,@@DATE@@,${DATE},g"           \

   619             -e "s,@@LOCAL@@,${LOCAL_set},g"     \

   620             -e "${var_sed}"                     \

   621             -e "${kconfig_sed}"                 \

   622          Makefile.in                            \

   623          >Makefile

   624 echo "done"

   626 cat <<__EOF__

   628 crosstool-NG configured as follows:

   629   PREFIX='${PREFIX}'

   630   BINDIR='${BINDIR}'

   631   LIBDIR='${LIBDIR}'

   632   DOCDIR='${DOCDIR}'

   633   MANDIR='${MANDIR}'

   635 Now run:

   636   make

   637 __EOF__

   638 if [ "${LOCAL_set}" != "y" ]; then

   639     printf "  make install\n"

   640 fi

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Mon Jul 04 22:37:44 2011 +0200 (2011-07-04)
changeset 2534	06163d8f6474
parent 2528	3b058d7049bf
child 2535	e9e8cafaf412
permissions	-rwxr-xr-x