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https://github.com/crosstool-ng/crosstool-ng.git
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./configure: enable user to specify path to some tools
/trunk/configure | 203 107 96 0 +++++++++++++++++++++++++++++++++----------------------------- 1 file changed, 107 insertions(+), 96 deletions(-)
This commit is contained in:
Yann E. MORIN"
parent
23b61e1541
commit
363a045e5d
203
configure
vendored
203
configure
vendored
@ -11,7 +11,8 @@ DATE=$( date +%Y%m%d )
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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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# 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, $( tool --version)
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@ -22,24 +23,29 @@ DATE=$( date +%Y%m%d )
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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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# bash:bash=^GNU bash, version 3\.
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# - if ${bash} is set and non-null, does nothing
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# - else ensures that bash exists in the PATH, and that
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# "$( "$( which bash )" --version |head -n 1 )"
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# matches the regexp '^GNU bash, version 3\.'
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# - if so, then sets bash="$( which bash )"
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# autoconf=(GNU Autoconf) || autoconf2.50
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# will ensure that:
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# - 'autoconf' is to be found in the PATH, and that $( autoconf --version )
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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 |head -n 1 )
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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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/bin/bash=^GNU bash, version 3\.
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bash:bash=^GNU bash, version 3\.
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cut
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xargs
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make=^GNU Make
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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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gawk=^GNU Awk
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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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@ -61,7 +67,6 @@ MANDIR_set=
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LOCAL_set=
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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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@ -73,8 +78,19 @@ do_error() {
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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/^((([^=:]+):.+|[^:=]+)=.+|[^:=]+)$/\3/;' )"
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field="${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="${IFS}"
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tool_pattern="$( echo "${1}" |"${sed}" -r -e 's/ *\|\| */\n/g;' )"
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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 ${tool_pattern}; do
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@ -87,7 +103,15 @@ has_or_abort() {
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regexp=
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;;
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esac
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printf "Checking for '${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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@ -102,9 +126,8 @@ has_or_abort() {
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continue
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fi
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fi
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echo "${where}"
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break
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done;
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done
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if [ -z "${where}" ]; then
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for item in ${tool_pattern}; do
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case "${item}" in
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@ -122,6 +145,11 @@ has_or_abort() {
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echo "or the version you have is tool old."
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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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@ -134,7 +162,7 @@ has_or_abort() {
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get_optval(){
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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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echo "${1#*=}"
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return 0
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;;
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*)
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@ -165,38 +193,15 @@ set_mandir() {
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MANDIR_set=1
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MANDIR="$( get_optval "$1" "$2" )"
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}
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# The set_contrib function is different in that it will work like the others,
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# except in two cases:
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# If all => replaces all with the list of all available contribs
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# If list => just echoes the list of all available contribs, and instructs
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# caller to quit immediately by setting do_quit to non null.
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# (can't use the return code, see above).
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set_contrib() {
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opt_val="$( get_optval "$1" "$2" )"
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ret=$?
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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 $ret
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set_tool() {
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local var_name="${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 ${VERSION} to adapt to many kind of systems.
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\`configure' configures crosstool-NG-${VERSION} to adapt to many kind of systems.
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USAGE: ./configure [OPTION]...
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@ -223,58 +228,29 @@ Fine tuning of the installation directories:
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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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--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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# Some sanity checks, now
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# We check for grep and sed manually, because it is used in has_or_abort
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printf "Checking for 'grep'... "
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grep="$( which grep 2>/dev/null )"
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[ -z "${grep}" ] && do_error "not found"
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echo "${grep}"
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printf "Checking whether '${grep}' supports -E... "
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if echo 'foo' |"${grep}" -E 'foo' >/dev/null 2>&1; then
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echo "yes"
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else
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do_error "no"
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fi
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printf "Checking for 'sed'... "
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sed="$( which sed 2>/dev/null )"
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[ -z "${sed}" ] && do_error "not found"
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echo "${sed}"
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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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# 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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--local) LOCAL_set=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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--with-*) set_tool "$1" "$2" && shift || shift 2;;
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--help|-h) do_help; exit 0;;
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*) do_help; exit 1;;
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*) echo "Unrecognised option: '${1}'"; do_help; exit 1;;
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esac
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done
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@ -291,24 +267,50 @@ if [ "${LOCAL_set}" = "1" ]; then
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fi
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#---------------------------------------------------------------------
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# Apply contributed code
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# Some sanity checks, now
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# It's safer to change all ',' to spaces rather than setting IFS
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CONTRIB_list="$( echo "${CONTRIB_list}" \
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|"${sed}" -r -e 's/,+/ /g; s/ +/ /g; s/^ //g; s/ $//g;' \
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)"
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if [ -n "${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/${c}.patch.lzma" |patch -p1 >/dev/null 2>&1
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done
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echo "done"
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# We check for grep and sed manually, because they are used in has_or_abort
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printf "Checking for 'grep'... "
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if [ -n "${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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[ -z "${grep}" ] && do_error "not found"
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echo "${grep}"
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fi
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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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do_error "no"
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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="$( which sed 2>/dev/null )"
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[ -z "${sed}" ] && do_error "not found"
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echo "${sed}"
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fi
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printf "Checking wether '${sed}' supports -i and -e... "
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touch .ct-ng.sed.test
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if "${sed}" -r -i -e 's/foo/bar/' .ct-ng.sed.test >/dev/null 2>&1; then
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rm -f .ct-ng.sed.test
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echo "yes"
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else
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rm -f .ct-ng.sed.test
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do_error "no"
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fi
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# Check the existence of absolutely required tools
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save_IFS="${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="${save_IFS}"
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#---------------------------------------------------------------------
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# Compute the version string
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@ -364,12 +366,22 @@ done
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# That's all, folks!
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printf "Building up Makefile... "
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var_list="grep
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sed
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$( printf "${TOOLS_TO_CHECK}" \
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|"${sed}" -r -e 's/^((([^=:]+):.+|[^:=]+)=.+|[^:=]+)$/\3/;'
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)"
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var_sed="$( 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@@,${LOCAL_set},g" Makefile.in >Makefile
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echo "done"
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@ -381,7 +393,6 @@ crosstool-NG configured as follows:
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LIBDIR='${LIBDIR}'
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DOCDIR='${DOCDIR}'
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MANDIR='${MANDIR}'
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CONTRIB='${CONTRIB_list}'
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Now run:
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make
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