configure

来自「基于4个mips核的noc设计」· 代码 · 共 1,619 行 · 第 1/4 页

#
# The rules are:
# 1. You aren't allowed to specify --host, --target, and undefs at the
#    same time.
# 2. Host defaults to undefs.
# 3. If undefs is not specified, then host defaults to the current host,
#    as determined by config.guess.
# 4. Target defaults to undefs.
# 5. If undefs is not specified, then target defaults to host.

case "${fatal}" in
"")
	# Make sure that host, target & undefs aren't all specified at the
	# same time.
	case $host_alias---$target_alias---$undefs in
	NOHOST---*---* | *---NOTARGET---* | *---*---NOUNDEFS)
		;;
	*) echo '***' Can only configure for one host and one target at a time.  1>&2
	   fatal=yes
	   break 2
		;;
	esac

	# Now, do defaulting for host.
	case $host_alias in
	NOHOST)
		case $undefs in
		NOUNDEFS)
			# Neither --host option nor undefs were present.
			# Call config.guess.
			guesssys=`echo ${progname} | sed 's/configure$/config.guess/'`
			if host_alias=`${config_shell} ${guesssys}`
			then
				# If the string we are going to use for
				# the target is a prefix of the string
				# we just guessed for the host, then
				# assume we are running native, and force
				# the same string for both target and host.
				case $target_alias in
				NOTARGET) ;;
				*)
					if expr $host_alias : $target_alias >/dev/null
					then
						host_alias=$target_alias
					fi
					;;
				esac
				echo "Configuring for a ${host_alias} host." 1>&2
				arguments="--host=$host_alias $arguments"
			else
				echo 'Config.guess failed to determine the host type.  You need to specify one.' 1>&2
				fatal=yes
			fi
			;;
		*)
			host_alias=$undefs
			arguments="--host=$host_alias $arguments"
			undefs=NOUNDEFS
			;;
		esac
	esac

	# Do defaulting for target.  If --target option isn't present, default
	# to undefs.  If undefs isn't present, default to host.
	case $target_alias in
	NOTARGET)
		case $undefs in
		NOUNDEFS)
			target_alias=$host_alias
			;;
		*)
			target_alias=$undefs
			arguments="--target=$target_alias $arguments"
			;;
		esac
	esac
	;;
*) ;;
esac

if [ -n "${fatal}" -o "${host_alias}" = "help" ] ; then
	exec 1>&2
	echo Usage: configure [OPTIONS] [HOST]
	echo
	echo Options: [defaults in brackets]
	echo ' --prefix=MYDIR		 install into MYDIR [/usr/local]'
	echo ' --exec-prefix=MYDIR	 install host-dependent files into MYDIR [/usr/local]'
	echo ' --help			 print this message [normal config]'
	echo ' --build=BUILD		 configure for building on BUILD [BUILD=HOST]'
	echo ' --host=HOST		 configure for HOST [determined via config.guess]'
	echo ' --norecursion		 configure this directory only [recurse]'
	echo ' --program-prefix=FOO	 prepend FOO to installed program names [""]'
	echo ' --program-suffix=FOO	 append FOO to installed program names [""]'
	echo ' --program-transform-name=P transform installed names by sed pattern P [""]'
	echo ' --site=SITE		 configure with site-specific makefile for SITE'
	echo ' --srcdir=DIR		 find the sources in DIR [. or ..]'
	echo ' --target=TARGET	 configure for TARGET [TARGET=HOST]'
	echo ' --tmpdir=TMPDIR	 create temporary files in TMPDIR [/tmp]'
	echo ' --nfp			 configure for software floating point [hard float]'
	echo ' --with-FOO, --with-FOO=BAR package FOO is available (parameter BAR)'
	echo ' --without-FOO		 package FOO is NOT available'
	echo ' --enable-FOO, --enable-FOO=BAR include feature FOO (parameter BAR)'
	echo ' --disable-FOO		 do not include feature FOO'
	echo
	echo 'Where HOST and TARGET are something like "sparc-sunos", "mips-sgi-irix5", etc.'
	echo
	if [ -r config.status ] ; then
		cat config.status
	fi

	exit 1
fi

configsub=`echo ${progname} | sed 's/configure$/config.sub/'`
moveifchange=`echo ${progname} | sed 's/configure$/move-if-change/'`
## the sed command below emulates the dirname command
topsrcdir=`cd \`echo ${progname} | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'\`; pwd`


# this is a hack.  sun4 must always be a valid host alias or this will fail.
if ${config_shell} ${configsub} sun4 >/dev/null 2>&1 ; then
        true
else
        echo '***' cannot find config.sub.  1>&2
        exit 1
fi

touch config.junk
if ${config_shell} ${moveifchange} config.junk config.trash ; then
        true
else
        echo '***' cannot find move-if-change.  1>&2
        exit 1
fi
rm -f config.junk config.trash

case "${srcdir}" in
"")
        if [ -r configure.in ] ; then
                srcdir=.
        else
                if [ -r ${progname}.in ] ; then
                        srcdir=`echo ${progname} | sed 's:/configure$::'`
                else
                        echo '***' "Can't find configure.in.  Try using --srcdir=some_dir"  1>&2
                        exit 1
                fi
        fi
        ;;
*)
	# Set srcdir to "." if that's what it is.
	# This is important for multilib support.
	if [ ! -d ${srcdir} ] ; then
		echo "Invalid source directory ${srcdir}" >&2
		exit 1
	fi
	pwd=`pwd`
	srcpwd=`cd ${srcdir} ; pwd`
	if [ "${pwd}" = "${srcpwd}" ] ; then
		srcdir=.
	fi
esac

### warn about some conflicting configurations.

case "${srcdir}" in
".") ;;
*)
        if [ -f ${srcdir}/config.status ] ; then
                echo '***' Cannot configure here in \"${PWD=`pwd`}\" when \"${srcdir}\" is currently configured. 1>&2
                exit 1
        fi
esac

# default exec_prefix
case "${exec_prefixoption}" in
"") exec_prefix="\$(prefix)" ;;
*) ;;
esac

# Define the trigger file to make sure configure will re-run whenever
# the gcc version number changes.
if [ "${with_gcc_version_trigger+set}" = set ]; then
    gcc_version_trigger="$with_gcc_version_trigger"
    gcc_version=`grep version_string ${with_gcc_version_trigger} | sed -e 's/.*\"\([^ \"]*\)[ \"].*/\1/'`
else
    # If gcc's sources are available, define the trigger file.
    if [ -f ${topsrcdir}/gcc/version.c ] ; then
	gcc_version_trigger=${topsrcdir}/gcc/version.c
	gcc_version=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^ \"]*\)[ \"].*/\1/'`
	case "$arguments" in
	  *--with-gcc-version-trigger=$gcc_version_trigger* )
	    ;;
	  * )
	    # Make sure configure.in knows about this.
	    arguments="--with-gcc-version-trigger=$gcc_version_trigger $arguments"
	    ;;
	esac
	withoptions="--with-gcc-version-trigger=$gcc_version_trigger $withoptions"
    fi
fi

### break up ${srcdir}/configure.in.
case "`grep '^# per\-host:' ${srcdir}/configure.in`" in
"")
        echo '***' ${srcdir}/configure.in has no \"per-host:\" line. 1>&2
	# Check for a directory that's been converted to use autoconf since
	# it was last configured.
	if grep AC_OUTPUT ${srcdir}/configure.in >/dev/null ; then
	  echo '***' Hmm, looks like this directory has been autoconfiscated. 1>&2
	  if [ -r ${srcdir}/configure ] ; then
	    echo '***' Running the local configure script. 1>&2
	    case "${cache_file}" in
	    "") cache_file_option= ;;
	    *)  cache_file_option="--cache-file=${cache_file}" ;;
	    esac
	    srcdiroption="--srcdir=${srcdir}"
	    case "${build_alias}" in
	    "") buildopt= ;;
	    *)  buildopt="--build=${build_alias}" ;;
	    esac
	    eval exec ${config_shell} ${srcdir}/configure ${verbose} \
		${buildopt} --host=${host_alias} --target=${target_alias} \
		${prefixoption} ${tmpdiroption} ${exec_prefixoption} \
		${srcdiroption} ${diroptions} \
		${program_prefixoption} ${program_suffixoption} \
		${program_transform_nameoption} ${site_option} \
		${withoptions} ${withoutoptions} \
		${enableoptions} ${disableoptions} ${floating_pointoption} \
		${cache_file_option} ${removing} ${other_options} ${redirect}
	  else
	    echo '***' There is no configure script present though. 1>&2
	  fi
	fi
        exit 1
        ;;
*) ;;
esac

case "`grep '^# per\-target:' ${srcdir}/configure.in`" in
"")
        echo '***' ${srcdir}/configure.in has no \"per-target:\" line. 1>&2
        exit 1
        ;;
*) ;;
esac

case "${TMPDIR}" in
"") TMPDIR=/tmp ; export TMPDIR ;;
*) ;;
esac

# keep this filename short for &%*%$*# 14 char file names and 8+3 file names
tmpfile=${TMPDIR}/cNf$$
# Note that under many versions of sh a trap handler for 0 will *override* any
# exit status you explicitly specify!  At this point, the only non-error exit
# is at the end of the script; these actions are duplicated there, minus
# the "exit 1".  Don't use "exit 0" anywhere after this without resetting the
# trap handler, or you'll lose.
trap "rm -f Makefile.tem ${tmpfile}.com ${tmpfile}.tgt ${tmpfile}.hst ${tmpfile}.pos; exit 1" 0 1 2 15

# split ${srcdir}/configure.in into common, per-host, per-target,
# and post-target parts.  Post-target is optional.
sed -e '/^# per\-host:/,$d' ${srcdir}/configure.in > ${tmpfile}.com
sed -e '1,/^# per\-host:/d' -e '/^# per\-target:/,$d' ${srcdir}/configure.in > ${tmpfile}.hst
if grep '^# post-target:' ${srcdir}/configure.in >/dev/null ; then
  sed -e '1,/^# per\-target:/d' -e '/^# post\-target:/,$d' ${srcdir}/configure.in > ${tmpfile}.tgt
  sed -e '1,/^# post\-target:/d' ${srcdir}/configure.in > ${tmpfile}.pos
else
  sed -e '1,/^# per\-target:/d' ${srcdir}/configure.in > ${tmpfile}.tgt
  echo >${tmpfile}.pos
fi

### do common part of configure.in

# If the language specific compiler does not exist, but the "gcc" directory does,
# we will skip this directory; in this case the sub-directory's common part
# of configure.in will create a small shell script "skip-this-dir" containing
# commands to completely clean up any temporary or created files.

. ${tmpfile}.com

if test -f skip-this-dir; then
	# Perform the same cleanup as the trap handler, minus the "exit 1" of course,
	# and reset the trap handler.
	trap 0
	rm -f Makefile* ${tmpfile}.com ${tmpfile}.tgt ${tmpfile}.hst ${tmpfile}.pos
	# Execute the final clean-up actions
	${config_shell} skip-this-dir
	# and stop configuring this directory.
	exit 0
fi

# some sanity checks on configure.in
case "${srctrigger}" in
"")
        echo '***' srctrigger not set in ${PWD=`pwd`}/configure.in.  1>&2
        exit 1
        ;;
*) ;;
esac

case "${build_alias}" in
"")
	if result=`${config_shell} ${configsub} ${host_alias}` ; then
	    build_cpu=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
	    build_vendor=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
	    build_os=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
	    build=${build_cpu}-${build_vendor}-${build_os}
	    build_alias=${host_alias}
	fi
	;;
*)
	if result=`${config_shell} ${configsub} ${build_alias}` ; then
	    buildopt="--build=${build_alias}"
	    build_cpu=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
	    build_vendor=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
	    build_os=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
	    build=${build_cpu}-${build_vendor}-${build_os}
	else
	    echo "Unrecognized build system name ${build_alias}." 1>&2
	    exit 1
	fi
	;;
esac

if result=`${config_shell} ${configsub} ${host_alias}` ; then
    true
else
    echo "Unrecognized host system name ${host_alias}." 1>&2
    exit 1
fi
host_cpu=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
host_vendor=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
host_os=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
host=${host_cpu}-${host_vendor}-${host_os}

. ${tmpfile}.hst

if result=`${config_shell} ${configsub} ${target_alias}` ; then
    true
else
    echo "Unrecognized target system name ${target_alias}." 1>&2
    exit 1
fi
target_cpu=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
target_vendor=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
target_os=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
target=${target_cpu}-${target_vendor}-${target_os}

. ${tmpfile}.tgt

# Find the source files, if location was not specified.
case "${srcdir}" in
"")
        srcdirdefaulted=1
        srcdir=.
        if [ ! -r ${srctrigger} ] ; then
                srcdir=..
        fi
        ;;
*) ;;
esac

if [ ! -r ${srcdir}/${srctrigger} ] ; then
        case "${srcdirdefaulted}" in
        "") echo '***' "${progname}: Can't find ${srcname} sources in ${PWD=`pwd`}/${srcdir}" 1>&2 ;;
        *)  echo '***' "${progname}: Can't find ${srcname} sources in ${PWD=`pwd`}/. or ${PWD=`pwd`}/.." 1>&2 ;;
        esac

        echo '***' \(At least ${srctrigger} is missing.\) 1>&2
        exit 1
fi

# Some systems (e.g., one of the i386-aix systems the gas testers are
# using) don't handle "\$" correctly, so don't use it here.
tooldir='$(exec_prefix)'/${target_alias}

if [ "${host_alias}" != "${target_alias}" ] ; then
    if [ "${program_prefixoption}" = "" ] ; then
        if [ "${program_suffixoption}" = "" ] ; then 
            if [ "${program_transform_nameoption}" = "" ] ; then
                program_prefix=${target_alias}- ;
            fi
        fi
    fi
fi

# Merge program_prefix and program_suffix onto program_transform_name.
# (program_suffix used to use $, but it's hard to preserve $ through both
# make and sh.)
if [ "${program_suffix}" != "" ] ; then
    program_transform_name="-e s,\\\\(.*\\\\),\\\\1${program_suffix}, ${program_transform_name}"
fi

if [ "${program_prefix}" != "" ] ; then
    program_transform_name="-e s,^,${program_prefix}, ${program_transform_name}"
fi

# If CC and CXX are not set in the environment, and the Makefile
# exists, try to extract them from it.  This is to handle running
# ./config.status by hand.
if [ -z "${CC}" ] && [ -r Makefile ]; then
  sed -n -e ':loop
/\\$/ N