mirror of
https://github.com/crosstool-ng/crosstool-ng.git
synced 2024-12-19 12:57:53 +00:00
424 lines
13 KiB
Bash
Executable File
424 lines
13 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 := var_name : tool_pattern OR tool_pattern
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# tool_pattern := tool_test OR tool_pattern || tool_test
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# tool_test := tool=regexp OR tool
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# tool := basename of the tool OR absolute pathname to the tool
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# regexp := valid grep(1) extended regular expression, $( tool --version)
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# will be matched against this regexp.
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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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# bash:bash=^GNU bash, version 3\.
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# - if ${bash} is set and non-null, does nothing
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# - else ensures that bash exists in the PATH, and that $( bash --version )
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# matches the regexp '^GNU bash, version 3\.'
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# - if so, then sets bash="$( which bash )"
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# autoconf=(GNU Autoconf) || autoconf2.50
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# - does not look at an existing variable
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# - ensures that:
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# - 'autoconf' is to be found in the PATH, and that $( autoconf --version )
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# matches the regexp '(GNU Autoconf)' (which btw is the signature of
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# 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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bash:bash=^GNU bash, version [34]\.
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cut
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xargs
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install:install=GNU coreutils
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make:make=^GNU Make
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gcc
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awk:awk=^GNU Awk || gawk=^GNU Awk
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bison
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flex
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makeinfo
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automake=\(GNU automake\) (1\.[[:digit:]]{2,}\.|[2-9][[:digit:]]*\.)
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libtool=\(GNU libtool.*\) (2[[:digit:]]*\.|1\.6[[:digit:]]*\.|1\.5\.[2-9][[:digit:]]+)
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curl || wget
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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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do_quit=
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# Simply print the error message, and exit. Obvious, he?
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do_error() {
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echo "${@}"
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exit 1
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}
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# A small function to test for existence of various tools
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# Usage: has_or_abort test_pattern (see top of file, TOOLS_TO_CHECK, for
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# complete pattern format)
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has_or_abort() {
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local save_IFS
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local var_name
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local var_value
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local tool_pattern
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local field
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var_name="$( echo "${1}" |"${sed}" -r -e 's/^(([^=:]+):.+|[^:=]+=.+|[^:=]+)$/\2/;' )"
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field="${var_name:+2}"
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field="${field:-1}"
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tool_pattern="$( echo "${1}" |cut -d : -f ${field}- |"${sed}" -r -e 's/ *\|\| */\n/g;' )"
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save_IFS="${IFS}"
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# Set IFS to \n only
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IFS='
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'
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for item in ${tool_pattern}; do
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case "${item}" in
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*=*)
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tool="${item%%=*}"
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regexp="${item#*=}"
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;;
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*) tool="${item}"
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regexp=
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;;
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esac
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printf "Checking for '${tool}'... "
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if [ -n "${var_name}" ]; then
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eval var_value='"${'"${var_name}"'}"'
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if [ -n "${var_value}" ]; then
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echo "${var_value} (cached)"
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return 0
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fi
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fi
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where=$( which "${tool}" 2>/dev/null )
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if [ -z "${where}" ]; then
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echo "not found"
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where=
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continue
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elif [ -n "${regexp}" ]; then
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tool_version=$( ${tool} --version 2>&1 )
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str=$( echo "${tool_version}" |"${grep}" -E "${regexp}" |head -n 1 )
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if [ -z "${str}" ]; then
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echo "not found"
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where=""
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continue
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fi
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fi
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break
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done
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if [ -z "${where}" ]; then
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for item in ${tool_pattern}; do
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case "${item}" in
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*=*)
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tool="${item%%=*}"
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regexp="${item#*=}"
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;;
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*) tool="${item}"
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regexp=
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;;
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esac
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printf " could not find '${tool}'"
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[ -n "${regexp}" ] && printf " matching regexp '${regexp}'"
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echo
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done
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echo "Either you are missing entirely the needed tool,"
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echo "or the version you have is tool old."
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if [ -n "${var_name}" ]; then
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echo "You can give the path to this tool using: --with-${var_name}=PATH"
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fi
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# FORCE can be set in the environment
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[ -z "${FORCE}" ] && do_error "Bailing out..."
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else
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echo "${where}"
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if [ -n "${var_name}" ]; then
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eval ${var_name}='"'"${where}"'"'
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fi
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fi
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IFS="${save_IFS}"
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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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case "$1" in
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--*=?*)
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echo "${1#*=}"
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return 0
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;;
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*)
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echo "${2}"
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return 1
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;;
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esac
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}
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# The set_xxx functions will set the corresponding configuration variable
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# They return 0 if second arg was not consumed, and non-zero if it was consumed.
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set_prefix() {
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PREFIX="$( get_optval "$1" "$2" )"
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}
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set_bindir() {
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BINDIR_set=1
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BINDIR="$( get_optval "$1" "$2" )"
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}
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set_libdir() {
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LIBDIR_set=1
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LIBDIR="$( get_optval "$1" "$2" )"
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}
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set_docdir() {
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DOCDIR_set=1
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DOCDIR="$( get_optval "$1" "$2" )"
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}
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set_mandir() {
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MANDIR_set=1
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MANDIR="$( get_optval "$1" "$2" )"
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}
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set_tool() {
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local var_name="${1%%=*}"
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var_name="${var_name#--with-}"
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eval ${var_name}="\$( get_optval "$1" "$2" )"
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}
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do_help() {
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cat <<__EOF__
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\`configure' configures crosstool-NG-${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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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-install=PATH Specify the full PATH to GNU install
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--with-make=PATH Specify the full PATH to GNU make
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--with-grep=PATH Specify the full PATH to GNU grep
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--with-sed=PATH Specify the full PATH to GNU sed
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--with-awk=PATH Specify the full PATH to GNU awk
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--with-bash=PATH Specify the full PATH to bash >= 3.0
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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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--local) LOCAL_set=1; shift;;
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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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--with-*) set_tool "$1" "$2" && shift || shift 2;;
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--help|-h) do_help; exit 0;;
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*) echo "Unrecognised option: '${1}'"; 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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# We check for grep and sed manually, because they are used in has_or_abort
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printf "Checking for 'grep'... "
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if [ -n "${grep}" ]; then
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echo "${grep} (cached)"
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else
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grep="$( which grep 2>/dev/null )"
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if [ -z "${grep}" ]; then
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echo "not found"
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else
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echo "${grep}"
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printf "Checking whether '${grep}' supports -E... "
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if echo 'foo' |"${grep}" -E 'foo' >/dev/null 2>&1; then
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echo "yes"
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else
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echo "no"
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grep=
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fi
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fi
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fi
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if [ -z "${grep}" ]; then
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echo "Either you are missing entirely the needed tool,"
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echo "or the version you have is tool old."
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echo "You can give the path to this tool using: --with-grep=PATH"
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do_error "Bailing out..."
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fi
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printf "Checking for 'sed'... "
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if [ -n "${sed}" ]; then
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echo "${sed} (cached)"
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else
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sed="$( which sed 2>/dev/null )"
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if [ -z "${sed}" ]; then
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echo "not found"
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else
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echo "${sed}"
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printf "Checking wether '${sed}' supports -i and -e... "
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touch .ct-ng.sed.test
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if "${sed}" -r -i -e 's/foo/bar/' .ct-ng.sed.test >/dev/null 2>&1; then
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echo "yes"
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else
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echo "no"
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sed=
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fi
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rm -f .ct-ng.sed.test
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fi
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fi
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if [ -z "${sed}" ]; then
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echo "Either you are missing entirely the needed tool,"
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echo "or the version you have is tool old."
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echo "You can give the path to this tool using: --with-sed=PATH"
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do_error "Bailing out..."
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fi
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# Check the existence of absolutely required tools
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save_IFS="${IFS}"
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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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IFS="${save_IFS}"
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#---------------------------------------------------------------------
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# Compute the version string
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# If this version is a svn snapshot, try to get the revision number
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# If we can't get the revision number, use date
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printf "Computing version string... "
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case "${VERSION}" in
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*+svn|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="$( LC_ALL=C svn info 2>/dev/null \
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|egrep 'URL: ' \
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|cut -d ' ' -f 2- \
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)"
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ROOT="$( LC_ALL=C svn info 2>/dev/null \
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|"${grep}" '^Repository Root: ' \
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|cut -d ' ' -f 3- \
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)"
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VERSION="${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 "${VERSION}"
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#---------------------------------------------------------------------
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# Compute and check install paths
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# Now we have the version string, we can build up the paths
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[ -z "${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="${PREFIX}/share/man/man1"
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# Check that install PATHs are absolute
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for p in BIN LIB DOC MAN; do
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var="${p}DIR"
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eval v='"${'"${var}"'}"'
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case "${v}" in
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/*) ;;
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*) do_error "'${var}' is not an absolute path: '${v}'"
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esac
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done
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#---------------------------------------------------------------------
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# That's all, folks!
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printf "Building up Makefile... "
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var_list="grep
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sed
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$( printf "${TOOLS_TO_CHECK}" \
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|"${sed}" -r -e 's/^(([^=:]+):.+|[^:=]+=.+|[^:=]+)$/\2/;'
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)"
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var_sed="$( for var_name in ${var_list}; do
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eval echo 's,@@${var_name}@@,${'"${var_name}"'},g'
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done
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)"
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"${sed}" -r -e "s,@@BINDIR@@,${BINDIR},g
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s,@@LIBDIR@@,${LIBDIR},g
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s,@@DOCDIR@@,${DOCDIR},g
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s,@@MANDIR@@,${MANDIR},g
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s,@@VERSION@@,${VERSION},g
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s,@@DATE@@,${DATE},g
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${var_sed}
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s,@@LOCAL@@,${LOCAL_set},g" Makefile.in >Makefile
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echo "done"
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cat <<__EOF__
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crosstool-NG configured as follows:
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PREFIX='${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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Now run:
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make
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make install
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__EOF__
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