mirror of
https://github.com/crosstool-ng/crosstool-ng.git
synced 2024-12-23 14:42:26 +00:00
5417e0f79c
calls to stat have been made portable, thus it is not necessary that the GNU version is present on the user's system.
463 lines
15 KiB
Bash
Executable File
463 lines
15 KiB
Bash
Executable File
#!/bin/sh
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myname="${0##*/}"
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VERSION=$( cat .version )
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DATE=$( date +%Y%m%d )
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PREFIX_DEFAULT=/usr/local
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BINDIR_set=
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LIBDIR_set=
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DOCDIR_set=
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MANDIR_set=
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LOCAL_set=
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FORCE=
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do_quit=
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# Simply print the error message, and exit. Obvious, he?
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do_error() {
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printf "${myname}: ${@}\n"
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exit 1
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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 "$1" in
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--*=?*)
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printf "${1#*=}"
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return 0
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;;
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*)
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printf "${2}"
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return 1
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;;
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esac
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}
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# The set_xxx functions will set the corresponding configuration variable
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# They return 0 if second arg was not consumed, and non-zero if it was consumed.
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set_prefix() {
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PREFIX="$( 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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# var_list is a list of variables, each one holding a path to a
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# tool, either detected by ./configure, or specified by the user.
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var_list=""
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# This function adds a variable name to the above list of variable names.
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# $1: the name of the variable to add to the list
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add_to_var_list() {
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var_list="${var_list} ${1}"
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}
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# A function to test for required tools/headers/libraries
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# Return 0 (true) if found, !0 (false) if not found
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#
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# $*: [prog|inc|lib]=<name[ name...]>
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# the name(s) of tool(s) to test for
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# mandatory
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# eg: prog=bash prog="curl wget"
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# $*: var=<var_name>
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# the name of the variable to test and set
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# optional
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# eg: var=bash if ${bash} is set and non-null, use that,
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# else check for bash and set bash=$(which bash)
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# $*: ver=<regexp>
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# for each 'prog', test if $(prog --version) matches 'regexp'
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# optional
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# eg: ver='^GNU bash, version [34]\.'
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# $*: err=<error_message>
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# the error message to print if tool is missing
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# optional, defaults to: '${prog}: none found'
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# eg: err="'bash' 3.x or above was not found"
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check_for() {
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local prog inc lib
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local var ver err
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local val
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local item
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local where
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local status
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for item in "${@}"; do
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case "${item}" in
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prog=*|inc=*|lib=*|var=*|ver=*|err=*)
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eval ${item%%=*}="'${item#*=}'"
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;;
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*) do_error "has_or_abort: incorrect parameters: '$@'";;
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esac
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done
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case "${prog}:${inc}:${lib}" in
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?*::)
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for item in ${prog}; do
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printf "Checking for '${item}'... "
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if [ -n "${var}" ]; then
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eval val="\${${var}}"
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if [ -n "${val}" ]; then
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printf "${val} (cached)\n"
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add_to_var_list "${var}"
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return 0
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fi
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fi
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where="$( which "${item}" 2>/dev/null )"
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if [ -z "${where}" ]; then
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printf "no\n"
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continue
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elif [ -n "${ver}" ]; then
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str=$( LC_ALL=C "${where}" --version 2>&1 \
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|grep -E "${ver}" \
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|head -n 1
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)
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if [ -z "${str}" ]; then
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printf "no\n"
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unset where
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continue
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fi
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fi
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status="${where}"
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break
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done
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;;
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:?*:)
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for item in ${inc}; do
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printf "Checking for '${item}'... "
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if printf "#include \"${item}\"" |gcc -x c -c - -o /dev/null >/dev/null 2>&1; then
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where="${item}"
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status=yes
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break;
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fi
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printf "no\n"
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done
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;;
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::?*)
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for item in ${lib}; do
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printf "Checking for '${item}'... "
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where="$( gcc -print-file-name="${item}" )"
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if [ "${where}" != "${item}" ]; then
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where="$( readlink -e "${where}" )"
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status=yes
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break;
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fi
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printf "no\n"
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done
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;;
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esac
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if [ -z "${status}" ]; then
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printf "\n${err:-${prog}${inc}${lib}: none found}\n\n"
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printf "Either you are missing entirely the needed tool,\n"
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printf "or the version you have is too old.\n"
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if [ -n "${var}" ]; then
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printf "You can give the path to this tool using: --with-${var}=PATH\n"
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fi
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printf "\n"
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return 1
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fi
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printf "${status}"
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if [ -n "${var}" ]; then
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eval ${var}='"'"${where}"'"'
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add_to_var_list "${var}"
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fi
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printf "\n"
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}
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# This function checks for a tool, and aborts if not found
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# See check_for(), above, for how to call has_or_abort
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has_or_abort() {
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if ! check_for "$@"; then
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# FORCE can be set in the environment
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[ -z "${FORCE}" ] && do_error "Bailing out..."
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printf "\n"
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printf "<* *>\n"
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printf "<* FORCE in action: *>\n"
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printf "<* Continuing despite missing pre-requisite *>\n"
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printf "<* Prepare for breakage *>\n"
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printf "<* *>\n"
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printf "\n"
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fi
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}
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do_help() {
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cat <<__EOF__
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\`configure' configures crosstool-NG-${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 continue, even in case
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some pre-requisites are missing
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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 >= 3.80
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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-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="y"; 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" "$2" && shift || shift 2;;
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--force) FORCE=1; shift;;
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--help|-h) do_help; exit 0;;
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# Skip, auto-stuff compatibility
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--build=*|--host=*|--infodir=*|--datadir=*|--sysconfdir=*|--localstatedir=*) shift;;
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--build|--host|--infodir|--datadir|--sysconfdir|--localstatedir) shift 2;;
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*) printf "Unrecognised option: '${1}'\n"; 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 [ "${LOCAL_set}" = "y" ]; then
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set_prefix "" "$( 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 check_for()
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printf "Checking for 'grep'... "
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if [ -n "${grep}" ]; then
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printf "${grep} (cached)\n"
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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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printf "not found\n"
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else
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printf "${grep}\n"
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printf "Checking whether '${grep}' supports -E... "
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if echo 'foo' |"${grep}" -E 'foo' >/dev/null 2>&1; then
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printf "yes\n"
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else
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printf "no\n"
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grep=
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fi
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fi
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fi
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if [ -z "${grep}" ]; then
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printf "Either you are missing entirely the needed tool,\n"
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printf "or the version you have is too old.\n"
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printf "You can give the path to this tool using: --with-grep=PATH\n"
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do_error "Bailing out..."
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fi
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add_to_var_list grep
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printf "Checking for 'sed'... "
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if [ -n "${sed}" ]; then
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printf "${sed} (cached)\n"
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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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printf "not found\n"
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else
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printf "${sed}\n"
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printf "Checking whether '${sed}' supports -i and -e... "
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touch .ct-ng.sed.test
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if "${sed}" -r -i -e 's/foo/bar/' .ct-ng.sed.test >/dev/null 2>&1; then
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printf "yes\n"
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else
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printf "no\n"
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sed=
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fi
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rm -f .ct-ng.sed.test
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fi
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fi
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if [ -z "${sed}" ]; then
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printf "Either you are missing entirely the needed tool,\n"
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printf "or the version you have is too old.\n"
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printf "You can give the path to this tool using: --with-sed=PATH\n"
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do_error "Bailing out..."
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fi
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add_to_var_list sed
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# The regular list of tools we can now easily check for
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has_or_abort prog=bash \
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var=bash \
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ver='^GNU bash, version (3\.[1-9]|4)' \
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err="'bash' 3.1 or above was not found"
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has_or_abort prog=cut
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has_or_abort prog=install var=install
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has_or_abort prog=make \
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var=make \
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ver='^GNU Make (3.[89][[:digit:]]|[4-9])' \
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err="GNU 'make' 3.80 or above was not found"
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has_or_abort prog=gcc
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has_or_abort prog="awk gawk" ver='^GNU Awk' err="GNU 'awk' was not found"
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has_or_abort prog=bison
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has_or_abort prog=flex
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has_or_abort prog=makeinfo
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has_or_abort prog=automake \
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ver='\(GNU automake\) (1\.[[:digit:]]{2,}|[2-9][[:digit:]]*\.)' \
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err="'automake' 1.10 or above was not found"
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has_or_abort prog=libtool \
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ver='\(GNU libtool.*\) (2[[:digit:]]*\.|1\.6[[:digit:]]*\.|1\.5\.[2-9][[:digit:]]+)' \
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err="'libtool' 1.5.26 or above was not found"
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has_or_abort prog=stat
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has_or_abort prog="aria2c curl wget"
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has_or_abort prog=cvs
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has_or_abort prog=patch
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has_or_abort prog=tar
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has_or_abort prog=gzip
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has_or_abort prog=bzip2
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has_or_abort prog=lzma
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has_or_abort prog=readlink
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has_or_abort inc="ncurses/ncurses.h ncurses/curses.h ncurses.h curses.h" \
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err="'ncurses' headers files were not found"
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ncurses_libs="$( for l in ncursesw ncurses curses; do \
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for x in so a dylib; do \
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printf "lib$l.$x "; \
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done; \
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done \
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)"
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has_or_abort lib="${ncurses_libs}" \
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err="'ncurses' library was not found"
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#---------------------------------------------------------------------
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# Compute the version string
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# If this version is n hg clone, 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 "${VERSION}" in
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*+hg|hg)
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REVISION="$( hg id -n 2>/dev/null || true )"
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case "${REVISION}" in
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"")
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VERSION="${VERSION}_unknown@$( date +%Y%m%d.%H%M%S )";;
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*)
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VERSION="${VERSION}_$( hg id -b )@${REVISION%%+}_$( hg id -i )"
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;;
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esac
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# Arrange to have no / in the directory name, no need to create an
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# arbitrarily deep directory structure
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VERSION="$( printf "${VERSION}\n" |"${sed}" -r -e 's|/+|_|g;' )"
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;;
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esac
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printf "${VERSION}\n"
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#---------------------------------------------------------------------
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# Compute and check install paths
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# Now we have the version string, we can build up the paths
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[ -z "${BINDIR_set}" ] && BINDIR="${PREFIX}/bin"
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[ -z "${LIBDIR_set}" ] && LIBDIR="${PREFIX}/lib"
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[ -z "${DOCDIR_set}" ] && DOCDIR="${PREFIX}/share/doc"
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[ -z "${MANDIR_set}" ] && MANDIR="${PREFIX}/share/man/man1"
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# Install support files in our own sub-dir, so as not to mangle (system)
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# files and dirs, but only if not --local
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if [ -z "${LOCAL_set}" ]; then
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LIBDIR="${LIBDIR}/ct-ng-${VERSION}"
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DOCDIR="${DOCDIR}/ct-ng-${VERSION}"
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fi
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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_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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__EOF__
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if [ "${LOCAL_set}" != "y" ]; then
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printf " make install\n"
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fi
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