ltconfig

优化后的JIF/JPEG压缩文件解码器

struct {
  char *name;
  __ptr_t address;
}
dld_preloaded_symbols[] =
{
EOF
        sed 's/^\(.*\) \(.*\)$/  {"\1", (__ptr_t) \&\2},/' < "$nlist" >> conftest.c
        cat <<\EOF >> conftest.c
  {0, (__ptr_t) 0}
};

#ifdef __cplusplus
}
#endif
EOF
        # Now try linking the two files.
        mv conftest.o conftestm.o
	save_LIBS="$LIBS"
	save_CFLAGS="$CFLAGS"
        LIBS='conftestm.o'
	CFLAGS="$CFLAGS$no_builtin_flag"
        if { (eval echo $progname:1033: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
          pipe_works=yes
        else
          echo "$progname: failed program was:" >&5
          cat conftest.c >&5
        fi
        LIBS="$save_LIBS"
      else
        echo "cannot find nm_test_func in $nlist" >&5
      fi
    else
      echo "cannot find nm_test_var in $nlist" >&5
    fi
  else
    echo "cannot run $global_symbol_pipe" >&5
  fi
else
  echo "$progname: failed program was:" >&5
  cat conftest.c >&5
fi
$rm conftest*

# Do not use the global_symbol_pipe unless it works.
echo "$ac_t$pipe_works" 1>&6
test "$pipe_works" = yes || global_symbol_pipe=

# Check hardcoding attributes.
echo $ac_n "checking how to hardcode library paths into programs... $ac_c" 1>&6
hardcode_action=
if test -n "$hardcode_libdir_flag_spec" || \
   test -n "$runpath_var"; then

  # We can hardcode non-existant directories.
  if test "$hardcode_direct" != no && \
     test "$hardcode_minus_L" != no && \
     test "$hardcode_shlibpath_var" != no; then

    # Linking always hardcodes the temporary library directory.
    hardcode_action=relink
  else
    # We can link without hardcoding, and we can hardcode nonexisting dirs.
    hardcode_action=immediate
  fi
elif test "$hardcode_direct" != yes && \
     test "$hardcode_minus_L" != yes && \
     test "$hardcode_shlibpath_var" != yes; then
  # We cannot hardcode anything.
  hardcode_action=unsupported
else
  # We can only hardcode existing directories.
  hardcode_action=relink
fi
echo "$ac_t$hardcode_action" 1>&6
test "$hardcode_action" = unsupported && can_build_shared=no


reload_flag=
reload_cmds='$LD$reload_flag -o $output$reload_objs'
echo $ac_n "checking for $LD option to reload object files... $ac_c" 1>&6
# PORTME Some linker may need a different reload flag.
reload_flag='-r'
echo "$ac_t$reload_flag"
test -n "$reload_flag" && reload_flag=" $reload_flag"

# PORTME Fill in your ld.so characteristics
library_names_spec=
libname_spec='lib$name'
soname_spec=
postinstall_cmds=
postuninstall_cmds=
finish_cmds=
finish_eval=
shlibpath_var=
version_type=none
dynamic_linker="$host_os ld.so"

echo $ac_n "checking dynamic linker characteristics... $ac_c" 1>&6
case "$host_os" in
aix3* | aix4*)
  version_type=linux
  library_names_spec='${libname}${release}.so.$versuffix $libname.a'
  shlibpath_var=LIBPATH

  # AIX has no versioning support, so we append a major version to the name.
  soname_spec='${libname}${release}.so.$major'
  ;;

amigaos*)
  library_names_spec='$libname.ixlibrary $libname.a'
  # Create ${libname}_ixlibrary.a entries in /sys/libs.
  finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`$echo "X$lib" | $Xsed -e '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; test $rm /sys/libs/${libname}_ixlibrary.a; $show "(cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a)"; (cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a) || exit 1; done'
  ;;

freebsd2* | freebsd3*)
  version_type=sunos
  library_names_spec='${libname}${release}.so.$versuffix $libname.so'
  finish_cmds='PATH="$PATH:/sbin" ldconfig -m $libdir'
  shlibpath_var=LD_LIBRARY_PATH
  ;;

gnu*)
  version_type=sunos
  library_names_spec='${libname}${release}.so.$versuffix'
  shlibpath_var=LD_LIBRARY_PATH
  ;;

hpux9* | hpux10*)
  # Give a soname corresponding to the major version so that dld.sl refuses to
  # link against other versions.
  dynamic_linker="$host_os dld.sl"
  version_type=sunos
  shlibpath_var=SHLIB_PATH
  library_names_spec='${libname}${release}.sl.$versuffix ${libname}${release}.sl.$major $libname.sl'
  soname_spec='${libname}${release}.sl.$major'
  # HP-UX runs *really* slowly unless shared libraries are mode 555.
  postinstall_cmds='chmod 555 $lib'
  ;;

irix5* | irix6*)
  version_type=osf
  soname_spec='${libname}${release}.so'
  library_names_spec='${libname}${release}.so.$versuffix $libname.so'
  shlibpath_var=LD_LIBRARY_PATH
  ;;

# No shared lib support for Linux oldld, aout, or coff.
linux-gnuoldld* | linux-gnuaout* | linux-gnucoff*)
  dynamic_linker=no
  ;;

# This must be Linux ELF.
linux-gnu*)
  version_type=linux
  library_names_spec='${libname}${release}.so.$versuffix ${libname}${release}.so.$major $libname.so'
  soname_spec='${libname}${release}.so.$major'
  finish_cmds='PATH="$PATH:/sbin" ldconfig -n $libdir'
  shlibpath_var=LD_LIBRARY_PATH

  if test -f /lib/ld.so.1; then
    dynamic_linker='GNU ld.so'
  else
    # Only the GNU ld.so supports shared libraries on MkLinux.
    case "$host_cpu" in
    powerpc*) dynamic_linker=no ;;
    *) dynamic_linker='Linux ld.so' ;;
    esac
  fi
  ;;

netbsd* | openbsd*)
  version_type=sunos
  library_names_spec='${libname}${release}.so.$versuffix'
  finish_cmds='PATH="$PATH:/sbin" ldconfig -m $libdir'
  shlibpath_var=LD_LIBRARY_PATH
  ;;

os2*)
  libname_spec='$name'
  library_names_spec='$libname.dll $libname.a'
  dynamic_linker='OS/2 ld.exe'
  shlibpath_var=LIBPATH
  ;;

osf3* | osf4*)
  version_type=osf
  soname_spec='${libname}${release}.so'
  library_names_spec='${libname}${release}.so.$versuffix $libname.so'
  shlibpath_var=LD_LIBRARY_PATH
  ;;

sco3.2v5*)
  version_type=osf
  soname_spec='${libname}${release}.so.$major'
  library_names_spec='${libname}${release}.so.$versuffix ${libname}${release}.so.$major $libname.so'
  shlibpath_var=LD_LIBRARY_PATH
  ;;

solaris2*)
  version_type=linux
  library_names_spec='${libname}${release}.so.$versuffix ${libname}${release}.so.$major $libname.so'
  soname_spec='${libname}${release}.so.$major'
  shlibpath_var=LD_LIBRARY_PATH
  ;;

sunos4*)
  version_type=sunos
  library_names_spec='${libname}${release}.so.$versuffix'
  finish_cmds='PATH="$PATH:/usr/etc" ldconfig $libdir'
  shlibpath_var=LD_LIBRARY_PATH
  ;;

sysv4.2uw2*)
  version_type=linux
  library_names_spec='${libname}${release}.so.$versuffix ${libname}${release}.so.$major $libname.so'
  soname_spec='${libname}${release}.so.$major'
  shlibpath_var=LD_LIBRARY_PATH
  ;;

uts4*)
  version_type=linux
  library_names_spec='${libname}${release}.so.$versuffix ${libname}${release}.so.$major $libname.so'
  soname_spec='${libname}${release}.so.$major'
  shlibpath_var=LD_LIBRARY_PATH
  ;;

*)
  dynamic_linker=no
  ;;
esac
echo "$ac_t$dynamic_linker"
test "$dynamic_linker" = no && can_build_shared=no

# Report the final consequences.
echo "checking if libtool supports shared libraries... $can_build_shared" 1>&6

echo $ac_n "checking whether to build shared libraries... $ac_c" 1>&6
test "$can_build_shared" = "no" && enable_shared=no

# On AIX, shared libraries and static libraries use the same namespace, and
# are all built from PIC.
case "$host_os" in
aix*)
  test "$enable_shared" = yes && enable_static=no
  if test -n "$RANLIB"; then
    archive_cmds="$archive_cmds;\$RANLIB \$lib"
    postinstall_cmds='$RANLIB $lib'
  fi
  ;;
esac

echo "$ac_t$enable_shared" 1>&6

# Make sure either enable_shared or enable_static is yes.
test "$enable_shared" = yes || enable_static=yes

echo "checking whether to build static libraries... $enable_static" 1>&6

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

# Copy echo and quote the copy, instead of the original, because it is
# used later.
ltecho="$echo"

# Now quote all the things that may contain metacharacters.
for var in ltecho old_CC old_CFLAGS old_CPPFLAGS old_LD old_NM old_RANLIB \
  old_LN_S AR CC LD LN_S NM reload_flag reload_cmds wl pic_flag \
  link_static_flag no_builtin_flag export_dynamic_flag_spec \
  libname_spec library_names_spec soname_spec RANLIB \
  old_archive_cmds old_archive_from_new_cmds old_postinstall_cmds \
  old_postuninstall_cmds archive_cmds postinstall_cmds postuninstall_cmds \
  allow_undefined_flag no_undefined_flag \
  finish_cmds finish_eval global_symbol_pipe \
  hardcode_libdir_flag_spec hardcode_libdir_separator; do

  case "$var" in
  reload_cmds | old_archive_cmds | old_archive_from_new_cmds | \
  old_postinstall_cmds | old_postuninstall_cmds | archive_cmds | \
  postinstall_cmds | postuninstall_cmds | finish_cmds)
    # Double-quote double-evaled strings.
    eval "$var=\`\$echo \"X\$$var\" | \$Xsed -e \"\$double_quote_subst\" -e \"\$sed_quote_subst\"\`"
    ;;
  *)
    eval "$var=\`\$echo \"X\$$var\" | \$Xsed -e \"\$sed_quote_subst\"\`"
    ;;
  esac
done

ofile=libtool
trap "$rm $ofile; exit 1" 1 2 15
echo creating $ofile
$rm $ofile
cat <<EOF > $ofile
#! /bin/sh

# libtool - Provide generalized library-building support services.
# Generated automatically by $PROGRAM - GNU $PACKAGE $VERSION
# NOTE: Changes made to this file will be lost: look at ltconfig or ltmain.sh.
#
# Copyright (C) 1996-1998 Free Software Foundation, Inc.
# Gordon Matzigkeit <[e-mail]>, 1996
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.

# This program was configured as follows,
# on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
#
# CC="$old_CC" CFLAGS="$old_CFLAGS" CPPFLAGS="$old_CPPFLAGS" \\
# LD="$old_LD" NM="$old_NM" RANLIB="$old_RANLIB" LN_S="$old_LN_S" \\
#   $0$ltconfig_args
#
# Compiler and other test output produced by $progname, useful for
# debugging $progname, is in ./config.log if it exists.

# Sed that helps us avoid accidentally triggering echo(1) options like -n.
Xsed="sed -e s/^X//"

# The HP-UX ksh and POSIX shell print the target directory to stdout
# if CDPATH is set.
if test "\${CDPATH+set}" = set; then CDPATH=; export CDPATH; fi

# An echo program that does not interpret backslashes.
echo="$ltecho"

# The version of $progname that generated this script.
LTCONFIG_VERSION="$VERSION"

# Shell to use when invoking shell scripts.
SHELL=${CONFIG_SHELL-/bin/sh}

# Whether or not to build libtool libraries.
build_libtool_libs=$enable_shared

# Whether or not to build old-style libraries.
build_old_libs=$enable_static

# The host system.
host_alias="$host_alias"
host="$host"

# The archiver.
AR="$AR"

# The default C compiler.
CC="$CC"

# The linker used to build libraries.
LD="$LD"

# Whether we need hard or soft links.
LN_S="$LN_S"

# A BSD-compatible nm program.
NM="$NM"

# The name of the directory that contains temporary libtool files.
objdir="$objdir"

# How to create reloadable object files.
reload_flag="$reload_flag"
reload_cmds="$reload_cmds"

# How to pass a linker flag through the compiler.
wl="$wl"

# Additional compiler flags for building library objects.
pic_flag="$pic_flag"

# Compiler flag to prevent dynamic linking.
link_static_flag="$link_static_flag"

# Compiler flag to turn off builtin functions.
no_builtin_flag="$no_builtin_flag"

# Compiler flag to allow reflexive dlopens.
export_dynamic_flag_spec="$export_dynamic_flag_spec"

# Library versioning type.
version_type=$version_type

# Format of library name prefix.
libname_spec="$libname_spec"

# List of archive names.  First name is the real one, the rest are links.
# The last name is the one that the linker finds with -lNAME.
library_names_spec="$library_names_spec"

# The coded name of the library, if different from the real name.
soname_spec="$soname_spec"

# Commands used to build and install an old-style archive.
RANLIB="$RANLIB"
old_archive_cmds="$old_archive_cmds"
old_postinstall_cmds="$old_postinstall_cmds"
old_postuninstall_cmds="$old_postuninstall_cmds"

# Create an old-style archive from a shared archive.
old_archive_from_new_cmds="$old_archive_from_new_cmds"

# Commands used to build and install a shared archive.
archive_cmds="$archive_cmds"
postinstall_cmds="$postinstall_cmds"
postuninstall_cmds="$postuninstall_cmds"

# Flag that allows shared libraries with undefined symbols to be built.
allow_undefined_flag="$allow_undefined_flag"

# Flag that forces no undefined symbols.
no_undefined_flag="$no_undefined_flag"

# Commands used to finish a libtool library installation in a directory.
finish_cmds="$finish_cmds"

# Same as above, but a single script fragment to be evaled but not shown.
finish_eval="$finish_eval"

# Take the output of nm and produce a listing of raw symbols and C names.
global_symbol_pipe="$global_symbol_pipe"

# This is the shared library runtime path variable.
runpath_var=$runpath_var

# This is the shared library path variable.
shlibpath_var=$shlibpath_var

# How to hardcode a shared library path into an executable.
hardcode_action=$hardcode_action

# Flag to hardcode \$libdir into a binary during linking.
# This must work even if \$libdir does not exist.
hardcode_libdir_flag_spec="$hardcode_libdir_flag_spec"

# Whether we need a single -rpath flag with a separated argument.
hardcode_libdir_separator="$hardcode_libdir_separator"

# Set to yes if using DIR/libNAME.so during linking hardcodes DIR into the
# resulting binary.
hardcode_direct=$hardcode_direct

# Set to yes if using the -LDIR flag during linking hardcodes DIR into the
# resulting binary.
hardcode_minus_L=$hardcode_minus_L

# Set to yes if using SHLIBPATH_VAR=DIR during linking hardcodes DIR into
# the resulting binary.
hardcode_shlibpath_var=$hardcode_shlibpath_var

EOF

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

EOF
  ;;
esac

# Append the ltmain.sh script.
cat "$ltmain" >> $ofile || (rm -f $ofile; exit 1)

chmod +x $ofile
exit 0

# Local Variables:
# mode:shell-script
# sh-indentation:2
# End: