ltconfig

bookcase,by shell script and c++ and perl

    echo "$progname: invalid tag name: $tagname" 1>&2
    exit 1
    ;;
  esac

  if grep "^### BEGIN LIBTOOL TAG CONFIG: $tagname$" < "$ofile" > /dev/null; then
    echo "$progname: tag name $tagname already exists" 1>&2
    exit 1
  fi

  if test ! -f "$ofile"; then
    echo "$progname: warning: output file \`$ofile' does not exist" 1>&2
  fi

  if test -z "$LTCC"; then
    eval "`$SHELL $ofile --config | grep '^LTCC='`"
    if test -z "$LTCC"; then
      echo "$progname: warning: output file \`$ofile' does not look like a libtool script" 1>&2
    else
      echo "$progname: warning: using \`LTCC=$LTCC', extracted from \`$ofile'" 1>&2
    fi
  fi
fi

# Quote any args containing shell metacharacters.
ltconfig_args=
for arg
do
  case $arg in
  *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?]*)
  ltconfig_args="$ltconfig_args '$arg'" ;;
  *) ltconfig_args="$ltconfig_args $arg" ;;
  esac
done

# A relevant subset of AC_INIT.

# File descriptor usage:
# 0 standard input
# 1 file creation
# 2 errors and warnings
# 3 some systems may open it to /dev/tty
# 4 used on the Kubota Titan
# 5 compiler messages saved in config.log
# 6 checking for... messages and results
if test "$silent" = yes; then
  exec 6>/dev/null
else
  exec 6>&1
fi
exec 5>>./config.log

# NLS nuisances.
# Only set LANG and LC_ALL to C if already set.
# These must not be set unconditionally because not all systems understand
# e.g. LANG=C (notably SCO).
if test "X${LC_ALL+set}" = Xset; then LC_ALL=C; export LC_ALL; fi
if test "X${LANG+set}"   = Xset; then LANG=C;   export LANG;   fi

if test -n "$cache_file" && test -r "$cache_file" && test -f "$cache_file"; then
  echo "loading cache $cache_file within ltconfig"
  . $cache_file
fi

if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
  # Stardent Vistra SVR4 grep lacks -e, says [e-mail].
  if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
    ac_n= ac_c='
' ac_t='	'
  else
    ac_n=-n ac_c= ac_t=
  fi
else
  ac_n= ac_c='\c' ac_t=
fi

if test -z "$srcdir"; then
  # Assume the source directory is the same one as the path to LTMAIN.
  srcdir=`$echo "X$ltmain" | $Xsed -e 's%/[^/]*$%%'`
  test "$srcdir" = "$ltmain" && srcdir=.
fi

trap "$rm conftest*; exit 1" 1 2 15
if test "$verify_host" = yes; then
  # Check for config.guess and config.sub.
  ac_aux_dir=
  for ac_dir in $srcdir $srcdir/.. $srcdir/../..; do
    if test -f $ac_dir/config.guess; then
      ac_aux_dir=$ac_dir
      break
    fi
  done
  if test -z "$ac_aux_dir"; then
    echo "$progname: cannot find config.guess in $srcdir $srcdir/.. $srcdir/../.." 1>&2
    echo "$help" 1>&2
    exit 1
  fi
  ac_config_guess=$ac_aux_dir/config.guess
  ac_config_sub=$ac_aux_dir/config.sub

  # Make sure we can run config.sub.
  if $SHELL $ac_config_sub sun4 >/dev/null 2>&1; then :
  else
    echo "$progname: cannot run $ac_config_sub" 1>&2
    echo "$help" 1>&2
    exit 1
  fi

  echo $ac_n "checking host system type""... $ac_c" 1>&6

  host_alias=$host
  case $host_alias in
  "")
    # Force config.guess to use the C compiler.
    # CC_FOR_BUILD overrides the CC variable in config.guess but I had
    # problems with it so do it this way for now.
    CC="$LTCC"

    if host_alias=`$SHELL $ac_config_guess`; then :
    else
      echo "$progname: cannot guess host type; you must specify one" 1>&2
      echo "$help" 1>&2
      exit 1
    fi

    # Restore the C compiler.
    CC="$old_CC"
    ;;
  esac
  host=`$SHELL $ac_config_sub $host_alias`
  echo "$ac_t$host" 1>&6

  # Make sure the host verified.
  test -z "$host" && exit 1

  # Check for the build system type
  echo $ac_n "checking build system type... $ac_c" 1>&6

  build_alias=$build
  case $build_alias in
  NONE)
    case $nonopt in
    NONE) build_alias=$host_alias ;;
    *) build_alias=$nonopt ;;
    esac ;;
  esac

  build=`$SHELL $ac_config_sub $build_alias`
  build_cpu=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
  build_vendor=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
  build_os=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
  echo "$ac_t""$build" 1>&6

elif test -z "$host"; then
  echo "$progname: you must specify a host type if you use \`--no-verify'" 1>&2
  echo "$help" 1>&2
  exit 1
else
  host_alias=$host
  build_alias=$host_alias
  build=$host
fi

if test x"$host" != x"$build"; then
  ac_tool_prefix=${host_alias}-
else
  ac_tool_prefix=
fi

host_cpu=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
host_vendor=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`

# Transform linux* to *-*-linux-gnu*, to support old configure scripts.
case $host_os in
linux-gnu*) ;;
linux*) host=`echo $host | sed 's/^\(.*-.*-linux\)\(.*\)$/\1-gnu\2/'`
esac

case $host_os in
aix3*)
  # AIX sometimes has problems with the GCC collect2 program.  For some
  # reason, if we set the COLLECT_NAMES environment variable, the problems
  # vanish in a puff of smoke.
  if test "X${COLLECT_NAMES+set}" != Xset; then
    COLLECT_NAMES=
    export COLLECT_NAMES
  fi
  ;;
esac

# Determine commands to create old-style static archives.
old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs'
old_postinstall_cmds='chmod 644 $oldlib'
old_postuninstall_cmds=

if test -n "$RANLIB"; then
  old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib"
  old_postinstall_cmds="\$RANLIB \$oldlib~$old_postinstall_cmds"
fi

# Source the script associated with the $tagname tag configuration.
if test -n "$tagname"; then
  . $ltmain
else
  # FIXME:  We should use a variable here
  # Configure for a C compiler
  . $srcdir/ltcf-c.sh
fi

# Set sane defaults for various variables
test -z "$AR" && AR=ar
test -z "$AR_FLAGS" && AR_FLAGS=cru
test -z "$AS" && AS=as
test -z "$CC" && CC=cc
test -z "$DLLTOOL" && DLLTOOL=dlltool
test -z "$MAGIC_CMD" && MAGIC_CMD=file
test -z "$LD" && LD=ld
test -z "$LN_S" && LN_S="ln -s"
test -z "$NM" && NM=nm
test -z "$OBJDUMP" && OBJDUMP=objdump
test -z "$RANLIB" && RANLIB=:
test -z "$STRIP" && STRIP=:
test -z "$objext" && objext=o

echo $ac_n "checking for objdir... $ac_c" 1>&6
rm -f .libs 2>/dev/null
mkdir .libs 2>/dev/null
if test -d .libs; then
  objdir=.libs
else
  # MS-DOS does not allow filenames that begin with a dot.
  objdir=_libs
fi
rmdir .libs 2>/dev/null
echo "$ac_t$objdir" 1>&6

# If no C compiler was specified, use CC.
LTCC=${LTCC-"$CC"}

# Allow CC to be a program name with arguments.
set dummy $CC
compiler="$2"

# We assume here that the value for ac_cv_prog_cc_pic will not be cached
# in isolation, and that seeing it set (from the cache) indicates that
# the associated values are set (in the cache) correctly too.
echo $ac_n "checking for $compiler option to produce PIC... $ac_c" 1>&6
echo "$progname:678:checking for $compiler option to produce PIC" 1>&5

if test -z "$ac_cv_prog_cc_pic"; then
  echo "$ac_t"none 1>&6
else
  echo "$ac_t""$ac_cv_prog_cc_pic" 1>&6

  # Check to make sure the pic_flag actually works.
  echo $ac_n "checking if $compiler PIC flag $ac_cv_prog_cc_pic works... $ac_c" 1>&6
  echo "$progname:687:checking that $compiler PIC flag $ac_cv_prog_cc_pic works." 1>&5
  if test "X${ac_cv_prog_cc_pic_works+set}" = Xset && \
     test "X${ac_cv_prog_cc_pic_works}" != X; then
    echo $ac_n "(cached) $ac_c" 1>&6
  else
    ac_cv_prog_cc_pic_works=yes
    $rm conftest*
    echo $lt_simple_compile_test_code > conftest.$ac_ext
    save_CFLAGS="$CFLAGS"
    CFLAGS="$CFLAGS $ac_cv_prog_cc_pic -DPIC"
    if { (eval echo $progname:697: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; } && test -s conftest.$objext; then
      # Append any warnings to the config.log.
      cat conftest.err 1>&5

      case $host_os in
      hpux9* | hpux10* | hpux11*)
	# On HP-UX, both CC and GCC only warn that PIC is supported... then
	# they create non-PIC objects.  So, if there were any warnings, we
	# assume that PIC is not supported.
	if test -s conftest.err; then
	  ac_cv_prog_cc_pic_works=no
	  ac_cv_prog_cc_can_build_shared=no
	  ac_cv_prog_cc_pic=
	else
	  ac_cv_prog_cc_pic_works=yes
	  ac_cv_prog_cc_pic=" $ac_cv_prog_cc_pic"
	fi
	;;
      *)
	ac_cv_prog_cc_pic_works=yes
	ac_cv_prog_cc_pic=" $ac_cv_prog_cc_pic"
	;;
      esac
    else
      # Append any errors to the config.log.
      cat conftest.err 1>&5
      ac_cv_prog_cc_pic_works=no
      ac_cv_prog_cc_can_build_shared=no
      ac_cv_prog_cc_pic=
    fi
    CFLAGS="$save_CFLAGS"
    $rm conftest*
  fi
  # Belt *and* braces to stop my trousers falling down:
  if test "X$ac_cv_prog_cc_pic_works" = Xno; then
    ac_cv_prog_cc_pic=
    ac_cv_prog_cc_can_build_shared=no
  fi
  echo "$ac_t""$ac_cv_prog_cc_pic_works" 1>&6
fi

# Check for any special shared library compilation flags.
if test -n "$ac_cv_prog_cc_shlib"; then
  echo "$progname: warning: \`$CC' requires \`$ac_cv_prog_cc_shlib' to build shared libraries" 1>&2
  if echo "$old_CC $old_CFLAGS " | egrep -e "[ 	]$ac_cv_prog_cc_shlib[ 	]" >/dev/null; then :
  else
    echo "$progname: add \`$ac_cv_prog_cc_shlib' to the CC or CFLAGS env variable and reconfigure" 1>&2
    ac_cv_prog_cc_can_build_shared=no
  fi
fi

echo $ac_n "checking if $compiler static flag $ac_cv_prog_cc_static works... $ac_c" 1>&6
echo "$progname:749: checking if $compiler static flag $ac_cv_prog_cc_static works" >&5
if test "X${ac_cv_prog_cc_static_works+set}" = Xset && \
   test "X${ac_cv_prog_cc_static_works}" != X; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  $rm conftest*
  echo $lt_simple_link_test_code > conftest.$ac_ext
  save_LDFLAGS="$LDFLAGS"
  LDFLAGS="$LDFLAGS $ac_cv_prog_cc_static"
  if { (eval echo $progname:758: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
    ac_cv_prog_cc_static_works=yes
  else
    ac_cv_prog_cc_static_works=no
    ac_cv_prog_cc_static=
  fi
  LDFLAGS="$save_LDFLAGS"
  $rm conftest*
fi
# Belt *and* braces to stop my trousers falling down:
if test "X$ac_cv_prog_cc_static_works" = Xno; then
  ac_cv_prog_cc_static=
fi
echo "$ac_t""$ac_cv_prog_cc_static_works" 1>&6
pic_flag="$ac_cv_prog_cc_pic"
special_shlib_compile_flags="$ac_cv_prog_cc_shlib"
wl="$ac_cv_prog_cc_wl"
link_static_flag="$ac_cv_prog_cc_static"
no_builtin_flag="$ac_cv_prog_cc_no_builtin"
can_build_shared="$ac_cv_prog_cc_can_build_shared"

# find the maximum length of command line arguments
echo "$progname:780: finding the maximum length of command line arguments" 1>&5
echo $ac_n "finding the maximum length of command line arguments... $ac_c" 1>&6
if test "${lt_cv_sys_max_cmd_len+set}" = set; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  i=0
  testring="ABCDEF"
  while test `$CONFIG_SHELL $0 --fallback-echo "X$testring" >/dev/null 2>&1` == `echo "X$testring" >/dev/null 2>&1` &&
          new_result=`expr "X$testring" : ".*" 2>&1` &&
          lt_cv_sys_max_cmd_len=$new_result &&
          test $i != 32 # 1 MB should be enough
  do
    i=`expr $i + 1`
    testring=$testring$testring
  done
  testring=
  # add a significant safety factor because C++ compilers can tack on massive amounts
  # of additional arguments before passing them to the linker.  1/4 should be good.
  len=`expr $lt_cv_sys_max_cmd_len \/ 4`
  lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len - $len`
fi
echo "$progname:@lineno@: result: $lt_cv_sys_max_cmd_len" 1>&5
echo "${ac_t}$lt_cv_sys_max_cmd_len" 1>&6

if test -n $lt_cv_sys_max_cmd_len ; then
  max_cmd_len=$lt_cv_sys_max_cmd_len
else
  max_cmd_len=none
fi

# Check to see if options -o and -c are simultaneously supported by compiler
echo $ac_n "checking if $compiler supports -c -o file.$objext... $ac_c" 1>&6
if test "${lt_cv_compiler_c_o+set}" = set; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  $rm -r conftest 2>/dev/null
  mkdir conftest
  cd conftest
  $rm conftest*
  echo $lt_simple_compile_test_code > conftest.$ac_ext
  mkdir out
  # According to Tom Tromey, Ian Lance Taylor reported there are C compilers
  # that will create temporary files in the current directory regardless of
  # the output directory.  Thus, making CWD read-only will cause this test
  # to fail, enabling locking or at least warning the user not to do parallel
  # builds.
  chmod -w .
  save_CFLAGS="$CFLAGS"
  CFLAGS="$CFLAGS -o out/conftest2.$objext"
  echo "$progname:829: checking if $compiler supports -c -o file.$objext" >&5
  if { (eval echo $progname:830: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>out/conftest.err; } && test -s out/conftest2.$objext; then

    # The compiler can only warn and ignore the option if not recognized
    # So say no if there are warnings
      if test -s out/conftest.err; then
        lt_cv_compiler_c_o=no
      else
        lt_cv_compiler_c_o=yes
      fi
  else
    # Append any errors to the config.log.
    cat out/conftest.err 1>&5
    lt_cv_compiler_c_o=no
  fi
  CFLAGS="$save_CFLAGS"
  chmod u+w .
  $rm conftest* out/*
  rmdir out
  cd ..
  rmdir conftest
  $rm -r conftest 2>/dev/null
fi
compiler_c_o=$lt_cv_compiler_c_o
echo "${ac_t}$compiler_c_o" 1>&6

# Check to see if we can do hard links to lock some files if needed
hard_links="nottested"
if test "$compiler_c_o" = no && test "$need_locks" != no; then
  # do not overwrite the value of need_locks provided by the user