5 VERSION=$( cat .version )
8 PREFIX_DEFAULT=/usr/local
19 # Simply print the error message, and exit. Obvious, he?
21 printf "${myname}: ${@}\n"
25 # Given an option string and the following argument,
26 # echoes the value of the option.
27 # If --var=val => echoes val and returns 0, meaning second arg was not consumed
28 # If --var val => echoes val and returns non null, meaning second arg was used
42 # The set_xxx functions will set the corresponding configuration variable
43 # They return 0 if second arg was not consumed, and non-zero if it was consumed.
45 PREFIX="$( get_optval "$1" "$2" )"
49 BINDIR="$( get_optval "$1" "$2" )"
53 LIBDIR="$( get_optval "$1" "$2" )"
57 DOCDIR="$( get_optval "$1" "$2" )"
61 MANDIR="$( get_optval "$1" "$2" )"
64 local var_name="${1%%=*}"
65 var_name="${var_name#--with-}"
66 eval ${var_name}="\$( get_optval "$1" "$2" )"
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.
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
78 for v in ${var_list}; do
79 [ "${v}" = "${1}" ] && return 0
81 var_list="${var_list} ${1}"
83 add_to_kconfig_list() {
85 for k in ${kconfig_list}; do
86 [ "${k}" = "${1}" ] && return 0
88 kconfig_list="${kconfig_list} ${1}"
91 # A function to test for required tools/headers/libraries
92 # Return 0 (true) if found, !0 (false) if not found
94 # $*: [prog|inc|lib]=<name[ name...]>
95 # the name(s) of tool(s) to test for
97 # eg: prog=bash prog="curl wget"
99 # the name of the variable to test and set
101 # eg: var=bash if ${bash} is set and non-null, use that,
102 # else check for bash and set bash=$(which bash)
104 # for each 'prog', test if $(prog --version) matches 'regexp'
106 # eg: ver='^GNU bash, version [34]\.'
107 # $*: lib_exts=<extension[ extension...]>
108 # the list of allowed library extension
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 # $*: kconfig=<var_name>
117 # the name of a variable to pass down to kconfig if
118 # the prog/inc/lib was found
119 # optional, defaults to none
120 # eg: kconfig=has_libncurses
122 # if set to 'y', skip the test, but still register the
123 # kconfig and var variables; if 'n' or empty, do the
125 # optional, default to 'n'
126 # eg: skip="${static_link_ko}"
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
140 prog=*|inc=*|lib=*|var=*|ver=*|err=*|kconfig=*|lib_exts=*|skip=*)
141 eval ${item%%=*}=\"${item#*=}\"
143 *) do_error "check_for: incorrect parameters: '${item}'";;
147 case "${prog}:${inc}:${lib}" in
148 ?*:?*:|?*::?*|:?*:?*|?*:?*:?*)
149 if [ -n "${var}" ]; then
150 do_error "check_for: the use of var is not compatible with passing several of [prog|inc|lib] at once"
153 ::) do_error "check_for: [prog|inc|lib] is mandatory";;
156 if [ -n "${var}" ]; then
157 add_to_var_list "${var}"
159 if [ -n "${kconfig}" ]; then
160 add_to_kconfig_list "${kconfig}"
163 if [ "${skip}" = "y" ]; then
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"
177 where="$( which "${item}" 2>/dev/null )"
178 if [ -z "${where}" ]; then
181 elif [ -n "${ver}" ]; then
182 str=$( LC_ALL=C "${where}" --version 2>&1 \
186 if [ -z "${str}" ]; then
195 if [ -z "${status}" ]; then
202 if [ -n "${inc}" ]; then
203 for item in ${inc}; do
204 printf "Checking for '${item}'... "
205 if printf "#include \"${item}\"" |gcc -x c -c - -o /dev/null >/dev/null 2>&1; then
212 if [ -z "${status}" ]; then
219 if [ -n "${lib}" ]; then
220 if [ -z "${lib_exts}" ]; then
221 do_error "check_for: no library extension specified for '${lib}'"
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 "${where}" )"
235 if [ -z "${status}" ]; then
242 if [ -n "${var}" ]; then
243 eval ${var}='"'"${where}"'"'
245 if [ -n "${kconfig}" ]; then
250 # This function checks for a tool, and aborts if not found
251 # See check_for(), above, for how to call has_or_abort
253 # We declare these 6 variables here, although they are
254 # set in check_for(), called below
256 local var ver err kconfig
258 if ! check_for "$@"; 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"
265 # Bail out if --force is not specified
266 [ -z "${FORCE}" ] && do_error "Bailing out..."
268 printf "<* FORCE in action: *>\n"
269 printf "<* Continuing despite missing pre-requisite *>\n"
270 printf "<* Prepare for breakage *>\n"
276 # This function checks for a tool, and warns if not found
277 # See check_for(), above, for how to call has_or_abort
278 # Note: if err is not set, then no error message is printed
280 # We declare these 6 variables here, although they are
281 # set in check_for(), called below
283 local var ver err kconfig
285 if ! check_for "$@"; 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-${var}=PATH\n"
296 \`configure' configures crosstool-NG-${VERSION} to adapt to many kind of systems.
298 USAGE: ./configure [OPTION]...
300 Defaults for the options are specified in brackets.
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]
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
333 #---------------------------------------------------------------------
336 while [ $# -ne 0 ]; do
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" "$2" && shift || shift 2;;
345 --force) FORCE=1; shift;;
346 --help|-h) do_help; exit 0;;
347 # Skip, auto-stuff compatibility
348 --build=*|--host=*|--infodir=*|--datadir=*|--sysconfdir=*|--localstatedir=*) shift;;
349 --build|--host|--infodir|--datadir|--sysconfdir|--localstatedir) shift 2;;
350 --enable-shared|--disable-shared|--enable-static|--disable-static) shift;;
351 *) printf "Unrecognised option: '${1}'\n"; do_help; exit 1;;
356 [ -z "${PREFIX}" ] && set_prefix "" "${PREFIX_DEFAULT}"
358 # Special case when installing locally
359 if [ "${LOCAL_set}" = "y" ]; then
360 set_prefix "" "$( pwd )"
361 set_bindir "" "$( pwd )"
362 set_libdir "" "$( pwd )"
363 set_docdir "" "$( pwd )/docs"
364 set_mandir "" "$( pwd )/docs"
367 #---------------------------------------------------------------------
368 # Some sanity checks, now
370 # We check for grep and sed manually, because they are used in check_for()
371 printf "Checking for 'grep'... "
372 if [ -n "${grep}" ]; then
373 printf "${grep} (cached)\n"
375 grep="$( which grep 2>/dev/null )"
376 if [ -z "${grep}" ]; then
380 printf "Checking whether '${grep}' supports -E... "
381 if echo 'foo' |"${grep}" -E 'foo' >/dev/null 2>&1; then
389 if [ -z "${grep}" ]; then
390 printf "Either you are missing entirely the needed tool,\n"
391 printf "or the version you have is too old.\n"
392 printf "You can give the path to this tool using: --with-grep=PATH\n"
393 do_error "Bailing out..."
397 printf "Checking for 'sed'... "
398 if [ -n "${sed}" ]; then
399 printf "${sed} (cached)\n"
401 sed="$( which sed 2>/dev/null )"
402 if [ -z "${sed}" ]; then
406 printf "Checking whether '${sed}' supports -i and -e... "
407 touch .ct-ng.sed.test
408 if "${sed}" -r -i -e 's/foo/bar/' .ct-ng.sed.test >/dev/null 2>&1; then
414 rm -f .ct-ng.sed.test
417 if [ -z "${sed}" ]; then
418 printf "Either you are missing entirely the needed tool,\n"
419 printf "or the version you have is too old.\n"
420 printf "You can give the path to this tool using: --with-sed=PATH\n"
421 do_error "Bailing out..."
425 # The regular list of tools we can now easily check for
426 has_or_abort prog=bash \
428 ver='^GNU bash, version (3\.[1-9]|4)' \
429 err="'bash' 3.1 or above was not found"
430 has_or_abort prog=cut
431 has_or_abort prog=install var=install
432 has_or_abort prog=make \
434 ver='^GNU Make (3.[89][[:digit:]]|[4-9])' \
435 err="GNU 'make' 3.80 or above was not found"
436 has_or_abort prog=gcc
437 has_or_abort prog="awk gawk" ver='^GNU Awk' err="GNU 'awk' was not found"
438 has_or_abort prog=bison
439 has_or_abort prog=flex
440 has_or_abort prog=makeinfo
441 has_or_abort prog=automake \
442 ver='\(GNU automake\) (1\.[[:digit:]]{2,}|[2-9][[:digit:]]*\.)' \
443 err="'automake' 1.10 or above was not found"
444 has_or_abort prog=libtool \
446 ver='\(GNU libtool.*\) (2[[:digit:]]*\.|1\.6[[:digit:]]*\.|1\.5\.[2-9][[:digit:]]+)' \
447 err="'libtool' 1.5.26 or above was not found"
448 has_or_abort prog=stat
449 has_or_abort prog="curl wget"
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
460 has_or_warn prog=cvs \
462 err="it will not be possible to use newlib cvs snapshots"
463 has_or_abort prog=svn \
465 err="subversion is required to download eglibc"
469 printf "Checking for host system... "
471 printf "%s\n" "${host}"
476 printf " * Runing under %s is not fully tested\n" "${host}"
477 printf " * You may encounter some weird behavior\n"
481 printf "Checking if static linking is possible... "
486 if gcc -xc - -static -o "${tmp}" >/dev/null 2>&1 <<-_EOF_
487 int main() { return 0; }
495 if [ "${static_link_ok}" = "y" ]; then
501 printf " * An optional host feature is missing, some features will be disabled:\n"
502 printf " * - It will not be possible to statically link toolchain's binaries\n"
504 add_to_kconfig_list static_link_ok
508 if [ "${static_link_ok}" = "y" ]; then
509 libs_exts="${libs_exts} a"
512 ncurses_hdrs="ncurses/ncurses.h ncurses/curses.h ncurses.h curses.h"
513 ncurses_libs="libncursesw libncurses libcurses"
514 has_or_abort lib="${ncurses_libs}" \
515 lib_exts="${libs_exts}" \
516 inc="${ncurses_hdrs}" \
517 err="The 'ncurses' library is needed fo the menuconfig frontend"
519 has_or_abort lib="libstdc++" \
520 lib_exts="${libs_exts}" \
521 err="The 'libstdc++' library is needed to build gcc"
523 # Yes, we may be checking twice for libstdc++.a
524 # The first is because we need one instance of libstdc++ (shared or static)
525 # because it is needed for PPL; the second is because the static version is
526 # required for static-linking, and if missing, the option is removed.
527 has_or_warn lib="libstdc++" \
529 err="static 'libstdc++' is needed to statically link the toolchain's executables" \
530 kconfig=has_static_libstdcxx \
531 skip="${static_link_ko}"
533 has_or_warn inc="expat.h" \
535 lib_exts="${libs_exts}" \
536 err="The 'expat' header file and library are needed to link cross-gdb's executables" \
539 # Yes, we may be checking twice for libexpat.a
540 # The first is because we need one instance of libexpat (shared or static)
541 # because it is needed for cross-gdb; the second is because the static version
542 # is required for static-linking, and if missing, the option is removed.
543 has_or_warn lib="libexpat" \
545 err="static 'expat' is needed to statically link cross-gdb's executables" \
546 kconfig=has_static_expat \
547 skip="${static_link_ko}"
550 python_incs="${python_incs} python2.${v}/Python.h"
551 python_libs="${python_libs} libpython2.${v}"
553 has_or_warn inc="${python_incs}" \
554 lib="${python_libs}" \
555 lib_exts="${libs_exts}" \
556 err="The 'python' header file and library are needed for some features of cross-gdb"
558 #---------------------------------------------------------------------
559 # Compute the version string
561 # If this version is n hg clone, try to get the revision number
562 # If we can't get the revision number, use date
563 printf "\nComputing version string... "
566 REVISION="$( hg id -n 2>/dev/null || true )"
567 case "${REVISION}" in
569 VERSION="${VERSION}_unknown@$( date +%Y%m%d.%H%M%S )";;
571 VERSION="${VERSION}_$( hg id -b )@${REVISION%%+}_$( hg id -i )"
574 # Arrange to have no / in the directory name, no need to create an
575 # arbitrarily deep directory structure
576 VERSION="$( printf "${VERSION}\n" |"${sed}" -r -e 's|/+|_|g;' )"
579 printf "${VERSION}\n"
581 #---------------------------------------------------------------------
582 # Compute and check install paths
584 # Now we have the version string, we can build up the paths
585 [ -z "${BINDIR_set}" ] && BINDIR="${PREFIX}/bin"
586 [ -z "${LIBDIR_set}" ] && LIBDIR="${PREFIX}/lib"
587 [ -z "${DOCDIR_set}" ] && DOCDIR="${PREFIX}/share/doc"
588 [ -z "${MANDIR_set}" ] && MANDIR="${PREFIX}/share/man"
590 # Install support files in our own sub-dir, so as not to mangle (system)
591 # files and dirs, but only if not --local
592 if [ -z "${LOCAL_set}" ]; then
593 LIBDIR="${LIBDIR}/ct-ng-${VERSION}"
594 DOCDIR="${DOCDIR}/ct-ng-${VERSION}"
597 # Check that install PATHs are absolute
598 for p in BIN LIB DOC MAN; do
600 eval v='"${'"${var}"'}"'
603 *) do_error "'${var}' is not an absolute path: '${v}'"
607 #---------------------------------------------------------------------
610 printf "Building up Makefile... "
611 var_sed="$( for var_name in ${var_list}; do
612 eval echo 's,@@${var_name}@@,${'"${var_name}"'},g'
615 kconfig_sed="s/@@KCONFIG@@/$( for k_name in ${kconfig_list}; do
616 eval printf \"${k_name}=\${${k_name}} \"
619 "${sed}" -r -e "s,@@BINDIR@@,${BINDIR},g" \
620 -e "s,@@LIBDIR@@,${LIBDIR},g" \
621 -e "s,@@DOCDIR@@,${DOCDIR},g" \
622 -e "s,@@MANDIR@@,${MANDIR},g" \
623 -e "s,@@VERSION@@,${VERSION},g" \
624 -e "s,@@DATE@@,${DATE},g" \
625 -e "s,@@LOCAL@@,${LOCAL_set},g" \
627 -e "${kconfig_sed}" \
634 crosstool-NG configured as follows:
644 if [ "${LOCAL_set}" != "y" ]; then
645 printf " make install\n"