* m68k-opc.c (m68k_opcode_aliases): Add bhib as an alias for bhis,
[deliverable/binutils-gdb.git] / configure
index c3ee67ef5fd0be29621e726f2afb690e7eff6ba8..ccfcdc9fe44d1b2aafa691ae8a9a83129253d5cb 100755 (executable)
--- a/configure
+++ b/configure
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-# Please email any bugs, comments, and/or additions to this file to:
+# Please report any problems running this configure script to
 # configure@cygnus.com
+# Please do not send reports about other problems to this address.  See
+# gdb/README, gas/README, etc., for info on where and how to report
+# problems about particular tools.
 
 # This file was written by K. Richard Pixley.
 
@@ -50,6 +53,8 @@ Makefile=Makefile
 Makefile_in=Makefile.in
 arguments=$*
 build_alias=
+cache_file=
+cache_file_option=
 configdirs=
 exec_prefix=
 exec_prefixoption=
@@ -141,7 +146,7 @@ do
                ;;
 # These options have mandatory values.  Since we didn't find an = sign,
 # the value must be in the next argument
-       --b* | --ex* | --ho* | --pre* | --program-p* | --program-s* | --program-t* | --si* | --sr* | --ta* | --tm* | --x-*)
+       --b* | --cache* | --ex* | --ho* | --pre* | --program-p* | --program-s* | --program-t* | --si* | --sr* | --ta* | --tm* | --x-*)
                optarg=$1
                shift
                ;;
@@ -158,6 +163,9 @@ do
                   ;;
                esac
                ;;
+       --cache*)
+               cache_file=$optarg
+               ;;
        --disable-*)
                enableopt=`echo ${option} | sed 's:^--disable-:enable_:;s:-:_:g'`
                eval $enableopt=no
@@ -212,7 +220,7 @@ do
        --program-transform-name* | --program-t*)
                # Double any backslashes or dollar signs in the argument
                program_transform_name="${program_transform_name} -e `echo ${optarg} | sed -e 's/\\\\/\\\\\\\\/g' -e 's/\\\$/$$/g'`"
-               program_transform_nameoption="--program-transform-nameoption='$optarg'"
+               program_transform_nameoption="${program_transform_nameoption} --program-transform-name='$optarg'"
                ;;
        --rm)
                removing=--rm
@@ -276,10 +284,8 @@ do
        --x-i* | --x-l*) other_options="$other_options $orig_option"
                ;;
        --*)
-               echo "Warning: Unrecognized option: \"$orig_option\"". >&2
-               # Pass the option to any configure scripts in subdirectories
-               # in case they recognize it.
-               other_options="$other_options $orig_option"
+               echo "configure: Unrecognized option: \"$orig_option\"; use --help for usage." >&2
+               exit 1
                ;;
        *)
                case $undefs in
@@ -330,6 +336,20 @@ case "${fatal}" in
                        guesssys=`echo ${progname} | sed 's/configure$/config.guess/'`
                        if host_alias=`${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
@@ -362,29 +382,29 @@ esac
 
 if [ -n "${fatal}" -o "${host_alias}" = "help" ] ; then
        exec 1>&2
-       echo Usage: configure HOST
+       echo Usage: configure [OPTIONS] [HOST]
        echo
        echo Options: [defaults in brackets]
-       echo ' --prefix=MYDIR            configure for installation of host independent files into MYDIR. ["/usr/local"]'
-       echo ' --exec-prefix=MYDIR       configure for installation of 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      install programs with FOO prepended to their names. [ "" ]'
-       echo ' --program-suffix=FOO      install programs with FOO appended to their names. [ "" ]'
-       echo ' --program-transform-name=FOO install programs with names transformed by sed pattern FOO. [ "" ]'
-       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.  [ TMPDIR = "/tmp" ]'
-       echo ' --nfp                     configure the compilers default to soft floating point. [hard float]'
+       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 "vax", "sun3", "encore", etc.'
+       echo 'Where HOST and TARGET are something like "sparc-sunos", "mips-sgi-irix5", etc.'
        echo
        if [ -r config.status ] ; then
                cat config.status
@@ -441,7 +461,7 @@ case "${srcdir}" in
 esac
 
 # default exec_prefix
-case "${exec_prefix}" in
+case "${exec_prefixoption}" in
 "") exec_prefix="\$(prefix)" ;;
 *) ;;
 esac
@@ -450,6 +470,34 @@ esac
 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} \
+               ${program_prefixoption} ${program_suffixoption} \
+               ${program_transform_nameoption} ${site_option} \
+               ${withoptions} ${withoutoptions} \
+               ${enableoptions} ${disableoptions} \
+               ${cache_file_option} ${removing} ${other_options} ${redirect}
+         else
+           echo '***' There is no configure script present though. 1>&2
+         fi
+       fi
         exit 1
         ;;
 *) ;;
@@ -470,7 +518,12 @@ esac
 
 # keep this filename short for &%*%$*# 14 char file names
 tmpfile=${TMPDIR}/cONf$$
-trap "rm -f ${tmpfile}.com ${tmpfile}.tgt ${tmpfile}.hst ${tmpfile}.pos" 0
+# 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 ${tmpfile}.com ${tmpfile}.tgt ${tmpfile}.hst ${tmpfile}.pos; exit 1" 0 1 2 15
 
 # split ${srcdir}/configure.in into common, per-host, per-target,
 # and post-target parts.  Post-target is optional.
@@ -500,16 +553,25 @@ esac
 case "${build_alias}" in
 "")    ;;
 *)
-       result=`${configsub} ${build_alias}`
-        buildopt="--build=${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}
+       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
 
-result=`${configsub} ${host_alias}`
+if result=`${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/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
@@ -517,7 +579,12 @@ host=${host_cpu}-${host_vendor}-${host_os}
 
 . ${tmpfile}.hst
 
-result=`${configsub} ${target_alias}`
+if result=`${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/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
@@ -561,10 +628,11 @@ if [ "${host_alias}" != "${target_alias}" ] ; then
     fi
 fi
 
-# Merge program_prefix and program_suffix onto program_transform_name
-# Use a double $ so that make ignores it
+# 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 [ "${program_suffix}" != "" ] ; then
-    program_transform_name="-e s,\$\$,${program_suffix}, ${program_transform_name}"
+    program_transform_name="-e s,\\\\(.*\\\\),\\\\1${program_suffix}, ${program_transform_name}"
 fi
 
 if [ "${program_prefix}" != "" ] ; then
@@ -634,9 +702,15 @@ for subdir in . ${subdirs} ; do
                 fi
 
                 ${remove} -f ${link}
-                # Make a symlink if possible, otherwise try a hard link
-                ${symbolic_link} ${srcdir}/${file} ${link} 2>/dev/null || ${hard_link} ${srcdir}/${file} ${link}
-
+               # Make a symlink if possible, otherwise try a hard link
+               if ${symbolic_link} ${srcdir}/${file} ${link} >/dev/null 2>&1 ; then
+                       true
+               else
+                       # We need to re-remove the file because Lynx leaves a 
+                       # very strange directory there when it fails an NFS symlink.
+                       ${remove} -r -f ${link}
+                       ${hard_link} ${srcdir}/${file} ${link}
+               fi
                 if [ ! -r ${link} ] ; then
                         echo '***' "${progname}: unable to link \"${link}\" to \"${srcdir}/${file}\"." 1>&2
                         exit 1
@@ -653,8 +727,8 @@ for subdir in . ${subdirs} ; do
                 .) ;;
                 *) cat > ${subdir}/.gdbinit <<EOF
 # ${NO_EDIT}
-dir .
 dir ${makesrcdir}
+dir .
 source ${makesrcdir}/.gdbinit
 EOF
                         ;;
@@ -739,6 +813,7 @@ EOF
                       fi
                       if [ -f ${package_makefile_frag} ] ; then
                               sed -e "/^####/  r ${package_makefile_frag}" ${subdir}/Makefile.tem > ${Makefile}
+                             rm -f ${subdir}/Makefile.tem
                       else
                               echo '***' Expected package makefile fragment \"${package_makefile_frag}\" 1>&2
                               echo '***' is missing in ${PWD=`pwd`}. 1>&2
@@ -926,6 +1001,18 @@ if [ -z "${norecursion}" -a -n "${configdirs}" ] ; then
                                 ;;
                         esac
 
+                       # Handle --cache-file=../XXX
+                       case "${cache_file}" in
+                       "") # empty
+                               ;;
+                       /*) # absolute path
+                               cache_file_option="--cache-file=${cache_file}"
+                               ;;
+                       *) # relative path
+                               cache_file_option="--cache-file=../${cache_file}"
+                               ;;
+                       esac
+
 ### check for guested configure, otherwise fix possibly relative progname
                         if [ -f ${newsrcdir}/configure ] ; then
                                 recprog=${newsrcdir}/configure
@@ -943,7 +1030,7 @@ if [ -z "${norecursion}" -a -n "${configdirs}" ] ; then
                        if [ ! -z "${recprog}" ] ; then
                                if eval ${config_shell} ${recprog} ${verbose} ${buildopt} --host=${host_alias} --target=${target_alias} \
                                        ${prefixoption} ${tmpdiroption} ${exec_prefixoption} \
-                                       ${srcdiroption} ${program_prefixoption} ${program_suffixoption} ${program_transform_nameoption} ${site_option} ${withoptions} ${withoutoptions} ${enableoptions} ${disableoptions} ${removing} ${other_options} ${redirect} ; then
+                                       ${srcdiroption} ${program_prefixoption} ${program_suffixoption} ${program_transform_nameoption} ${site_option} ${withoptions} ${withoutoptions} ${enableoptions} ${disableoptions} ${cache_file_option} ${removing} ${other_options} ${redirect} ; then
                                        true
                                else
                                        echo Configure in `pwd` failed, exiting. 1>&2
@@ -956,6 +1043,11 @@ if [ -z "${norecursion}" -a -n "${configdirs}" ] ; then
         done
 fi
 
+# Perform the same cleanup as the trap handler, minus the "exit 1" of course,
+# and reset the trap handler.
+rm -f ${tmpfile}.com ${tmpfile}.tgt ${tmpfile}.hst ${tmpfile}.pos
+trap 0
+
 exit 0
 
 #
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