mirror of
https://github.com/crosstool-ng/crosstool-ng.git
synced 2024-12-20 21:33:08 +00:00
323 lines
9.6 KiB
Bash
Executable File
323 lines
9.6 KiB
Bash
Executable File
#!/bin/sh
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VERSION=$(cat .version)
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DATE=$(date +%Y%m%d)
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# All absolutely required tools, one per line to ease diff.
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# See function 'has_or_abort, below, for syntax
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# - Hopefully, if gcc is present, then all associated tools will be
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# - awk must be GNU awk
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# - makeinfo for building docs, even if discarded later on
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# - others obvious... :-/
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#
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# Format of a pattern to check for, one per line:
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# pattern := tool_test OR pattern|tool_test
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# tool_test := tool/regexp
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# tool := name of the tool OR absolute pathname to the tool
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# regexp := valid grep(1) extended regular expression OR empty
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#
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# In case a pattern list is given (eg foo|bar|buz), then tests are performed
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# from left to right, stopping at the first matching test (like the shell
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# would parse 'foo || bar || buz' ).
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#
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# Examples:
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# /bin/bash/^GNU bash, version 3\.
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# will ensure that /bin/bash exists, and that $(/bin/bash --version)
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# matches the regexp '^GNU bash, version 3\.'
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# autoconf/(GNU Autoconf)|autoconf2.50/
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# will ensure that:
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# - 'autoconf' is to be found in the PATH, and that $(autoconf
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# --version) matches the regexp '(GNU Autoconf)' (which btw is
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# the signature of autoconf >= 2.50),
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# OR that:
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# - 'autoconf2.50' is to be found in the PATH
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#
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TOOLS_TO_CHECK='
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/bin/bash/^GNU bash, version 3\.
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make/^GNU Make
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gcc/
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awk/^GNU Awk
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sed/
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bison/
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flex/
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makeinfo/
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automake/
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libtool/
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patch/
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tar/
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gzip/
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bzip2/
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'
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PREFIX_DEFAULT=/usr/local
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BINDIR_set=
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LIBDIR_set=
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DOCDIR_set=
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MANDIR_set=
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LOCAL_set=
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FORCE=0
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do_quit=
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CONTRIB_list=
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# Simply print the error message, and exit. Obvious, he?
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do_error() {
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echo "${@}"
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exit 1
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}
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# A small function to test for existence of various tools
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# Usage: has_or_abort test_pattern (see top of file, TOOLS_TO_CHECK, for
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# complete pattern format)
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has_or_abort() {
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{ IFS="|"; for item in ${1}; do
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tool="${item%/*}"
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regexp="${item##*/}"
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printf "Checking for '${tool}'... "
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where=$(which "${tool}" 2>/dev/null || true)
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if [ -z "${where}" ]; then
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echo "not found"
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where=
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continue
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else
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if [ -n "${regexp}" ]; then
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str=$(${tool} --version 2>&1 |grep -E "${regexp}" |head -n 1)
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if [ -z "${str}" ]; then
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echo "wrong version string"
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where=""
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continue
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fi
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fi
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echo "${where}"
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return 0
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fi
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done;
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}
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[ ${FORCE} -eq 0 ] && do_error "Bailing out..."
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return 0
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}
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# Given an option string and the following argument,
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# echoes the value of the option.
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# If --var=val => echoes val and returns 0, meaning second arg was not consumed
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# If --var val => echoes val and returns non null, meaning second arg was used
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get_optval(){
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local ret
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case "$1" in
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--*=?*)
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echo "${1}" |cut -d '=' -f 2-
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ret=0
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;;
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*)
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echo "${2}"
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ret=1
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;;
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esac
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return ${ret}
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}
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# The set_xxx functions will set the corresponding configuration variable
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# They return 0 if second arg was not consumed, and non-zero if it was consumed.
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set_prefix() {
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PREFIX=$(get_optval "$1" "$2")
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return $?
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}
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set_bindir() {
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BINDIR_set=1
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BINDIR=$(get_optval "$1" "$2")
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return $?
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}
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set_libdir() {
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LIBDIR_set=1
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LIBDIR=$(get_optval "$1" "$2")
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return $?
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}
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set_docdir() {
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DOCDIR_set=1
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DOCDIR=$(get_optval "$1" "$2")
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return $?
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}
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set_mandir() {
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MANDIR_set=1
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MANDIR=$(get_optval "$1" "$2")
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return $?
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}
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# The set_contrib function is different in that it will work like the others,
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# except in two cases:
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# If all => replaces all with the list of all available contribs
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# If list => just echoes the list of all available contribs, and instructs
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# caller to quit immediately by setting do_quit to non null.
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# (can't use the return code, see above).
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set_contrib() {
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opt_val=$(get_optval "$1" "$2")
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local ret=$?
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case "${opt_val}" in
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all)
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CONTRIB_list=$(LC_ALL=C ls -1 contrib/*.patch.lzma \
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|xargs -I {} basename {} .patch.lzma \
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|sed -r -e ':a; /$/N; s/\n/,/; ta;'
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)
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;;
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list)
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do_quit=1
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echo "Available contributions:"
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LC_ALL=C ls -1 contrib/*.patch.lzma \
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|xargs -I {} basename {} .patch.lzma \
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|sed -r -e 's/^/ /;'
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;;
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*) CONTRIB_list="${CONTRIB_list},${opt_val}";;
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esac
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return $ret
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}
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do_help() {
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cat <<__EOF__
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\`configure' configures crosstool-NG ${VERSION} to adapt to many kind of systems.
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USAGE: ./configure [OPTION]...
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Defaults for the options are specified in brackets.
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Configuration:
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-h, --help display this help and exit
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--force force ./configure to complete, even if one or more
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tools were not found. Use at your own risk, only if
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you know what you are doing!
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Installation directories:
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--prefix=PREFIX install files in PREFIX [${PREFIX_DEFAULT}]
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--local don't install, and use current directory
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By default, \`make install' will install all the files in
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\`${PREFIX_DEFAULT}/bin', \`${PREFIX_DEFAULT}/lib' etc. You can specify
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an installation prefix other than \`${PREFIX_DEFAULT}' using \`--prefix',
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for instance \`--prefix=\${HOME}'.
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For better control, use the options below.
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Fine tuning of the installation directories:
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--bindir=DIR user executables [PREFIX/bin]
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--libdir=DIR object code libraries [PREFIX/lib]
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--docdir=DIR info documentation [PREFIX/share/doc]
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--mandir=DIR man documentation [PREFIX/share/man]
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Optional Features:
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--with-contrib=XXX Include externally contributed features found in the
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contrib/ sub-directory. Set to a comma-separated list
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of features. Use 'all' to use all contributions, and
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'list' to see which are available.
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__EOF__
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}
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#---------------------------------------------------------------------
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# Set user's options
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while [ $# -ne 0 ]; do
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case "$1" in
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--prefix*) set_prefix "$1" "$2" && shift || shift 2;;
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--bindir*) set_bindir "$1" "$2" && shift || shift 2;;
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--libdir*) set_libdir "$1" "$2" && shift || shift 2;;
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--docdir*) set_docdir "$1" "$2" && shift || shift 2;;
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--mandir*) set_mandir "$1" "$2" && shift || shift 2;;
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--local) LOCAL_set=1; shift;;
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--force) FORCE=1; shift;;
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--with-contrib*)
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set_contrib "$1" "$2" && shift || shift 2
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[ "${do_quit}" = "1" ] && exit 0
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;;
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--help|-h) do_help; exit 0;;
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*) do_help; exit 1;;
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esac
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done
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# Use defaults
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[ -z "${PREFIX}" ] && set_prefix "" "${PREFIX_DEFAULT}"
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# Special case when installing locally
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if [ "${LOCAL_set}" = "1" ]; then
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set_prefix "" $(pwd)
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set_bindir "" $(pwd)
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set_libdir "" $(pwd)
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set_docdir "" $(pwd)/docs
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set_mandir "" $(pwd)/docs
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fi
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#---------------------------------------------------------------------
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# Some sanity checks, now
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# If this version is a svn snapshot, try to get the revision number
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# If we can't get the revision number, use date
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printf "Computing version string... "
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case "${VERSION}" in
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*+svn)
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REVISION=$(LC_ALL=C svnversion)
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case "${REVISION}" in
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exported)
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VERSION="${VERSION}unknown@$(date +%Y%m%d.%H%M%S)";;
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*)
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URL=$(LC_ALL=C svn info 2>/dev/null |egrep 'URL: ' |cut -d ' ' -f 2-)
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ROOT=$(LC_ALL=C svn info 2>/dev/null |egrep 'Repository Root: ' |cut -d ' ' -f 3-)
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VERSION="${VERSION}${URL#${ROOT}}@${REVISION}"
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;;
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esac
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# Arrange to have no / in the directory name, no need to create an
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# arbitrarily deep directory structure
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VERSION=$(echo "${VERSION}" |sed -r -e 's|/+|_|g;')
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;;
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esac
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echo "${VERSION}"
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# Now we have the version string, we can build up the paths
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[ -z "${BINDIR_set}" ] && BINDIR="${PREFIX}/bin"
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[ -z "${LIBDIR_set}" ] && LIBDIR="${PREFIX}/lib/ct-ng-${VERSION}"
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[ -z "${DOCDIR_set}" ] && DOCDIR="${PREFIX}/share/doc/ct-ng-${VERSION}"
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[ -z "${MANDIR_set}" ] && MANDIR="${PREFIX}/share/man/man1"
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# Check the existence of absolutely required tools
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{ IFS='
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';
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for tool in ${TOOLS_TO_CHECK}; do
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has_or_abort "${tool}"
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done;
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}
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# It's safer to change all ',' to spaces rather than setting IFS
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CONTRIB_list=$(echo "${CONTRIB_list}" |sed -r -e 's/,+/ /g; s/ +/ /g; s/^ //g; s/ $//g;')
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if [ -n "${CONTRIB_list}" ]; then
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has_or_abort 'lzcat/'
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printf "Applying contributed code: "
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for c in ${CONTRIB_list}; do
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printf "${c}, "
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if [ ! -f "contrib/${c}.patch.lzma" ]; then
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do_error "Contribution '${c}' does not exist"
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fi
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lzcat "contrib/${c}.patch.lzma" |patch -p1 >/dev/null 2>&1
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done
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echo "done"
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fi
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printf "Building up Makefile... "
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sed -r -e "s,@@BINDIR@@,${BINDIR},g;" \
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-e "s,@@LIBDIR@@,${LIBDIR},g;" \
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-e "s,@@DOCDIR@@,${DOCDIR},g;" \
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-e "s,@@MANDIR@@,${MANDIR},g;" \
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-e "s,@@VERSION@@,${VERSION},g;" \
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-e "s,@@DATE@@,${DATE},g;" \
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-e "s,@@LOCAL@@,${LOCAL_set},g;" \
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Makefile.in >Makefile
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echo "done"
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cat <<__EOF__
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crosstool-NG configured as follows:
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PREFIX='${PREFIX}'
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BINDIR='${BINDIR}'
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LIBDIR='${LIBDIR}'
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DOCDIR='${DOCDIR}'
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MANDIR='${MANDIR}'
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CONTRIB='${CONTRIB_list}'
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__EOF__
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