configure

优化后的JIF/JPEG压缩文件解码器

  echo "$ac_t""no" 1>&6
fi


# Decide whether to use libtool,
# and if so whether to build shared, static, or both flavors of library.
LTSHARED="no"
# Check whether --enable-shared or --disable-shared was given.
if test "${enable_shared+set}" = set; then
  enableval="$enable_shared"
  LTSHARED="$enableval"
fi

LTSTATIC="no"
# Check whether --enable-static or --disable-static was given.
if test "${enable_static+set}" = set; then
  enableval="$enable_static"
  LTSTATIC="$enableval"
fi

if test "x$LTSHARED" != xno  -o  "x$LTSTATIC" != xno; then
  USELIBTOOL="yes"
  LIBTOOL="./libtool"
  O="lo"
  A="la"
  LN='$(LIBTOOL) --mode=link $(CC)'
  INSTALL_LIB='$(LIBTOOL) --mode=install ${INSTALL}'
  INSTALL_PROGRAM="\$(LIBTOOL) --mode=install $INSTALL_PROGRAM"
else
  USELIBTOOL="no"
  LIBTOOL=""
  O="o"
  A="a"
  LN='$(CC)'
  INSTALL_LIB="$INSTALL_DATA"
fi






# Configure libtool if needed.
if test $USELIBTOOL = yes; then
  disable_shared=
  disable_static=
  if test "x$LTSHARED" = xno; then
    disable_shared="--disable-shared"
  fi
  if test "x$LTSTATIC" = xno; then
    disable_static="--disable-static"
  fi
  $srcdir/ltconfig $disable_shared $disable_static $srcdir/ltmain.sh
fi

# Select memory manager depending on user input.
# If no "-enable-maxmem", use jmemnobs
MEMORYMGR='jmemnobs.$(O)'
MAXMEM="no"
# Check whether --enable-maxmem or --disable-maxmem was given.
if test "${enable_maxmem+set}" = set; then
  enableval="$enable_maxmem"
  MAXMEM="$enableval"
fi

# support --with-maxmem for backwards compatibility with IJG V5.
# Check whether --with-maxmem or --without-maxmem was given.
if test "${with_maxmem+set}" = set; then
  withval="$with_maxmem"
  MAXMEM="$withval"
fi

if test "x$MAXMEM" = xyes; then
  MAXMEM=1
fi
if test "x$MAXMEM" != xno; then
  if test -n "`echo $MAXMEM | sed 's/[0-9]//g'`"; then
    { echo "configure: error: non-numeric argument to --enable-maxmem" 1>&2; exit 1; }
  fi
  DEFAULTMAXMEM=`expr $MAXMEM \* 1048576`
cat >> confdefs.h <<EOF
#define DEFAULT_MAX_MEM ${DEFAULTMAXMEM}
EOF

echo $ac_n "checking for 'tmpfile()'""... $ac_c" 1>&6
echo "configure:1596: checking for 'tmpfile()'" >&5
cat > conftest.$ac_ext <<EOF
#line 1598 "configure"
#include "confdefs.h"
#include <stdio.h>
int main() {
 FILE * tfile = tmpfile(); 
; return 0; }
EOF
if { (eval echo configure:1605: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
  rm -rf conftest*
  echo "$ac_t""yes" 1>&6
MEMORYMGR='jmemansi.$(O)'
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  echo "$ac_t""no" 1>&6
MEMORYMGR='jmemname.$(O)'
cat >> confdefs.h <<\EOF
#define NEED_SIGNAL_CATCHER 
EOF

echo $ac_n "checking for 'mktemp()'""... $ac_c" 1>&6
echo "configure:1620: checking for 'mktemp()'" >&5
cat > conftest.$ac_ext <<EOF
#line 1622 "configure"
#include "confdefs.h"

int main() {
 char fname[80]; mktemp(fname); 
; return 0; }
EOF
if { (eval echo configure:1629: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
  rm -rf conftest*
  echo "$ac_t""yes" 1>&6
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  echo "$ac_t""no" 1>&6
cat >> confdefs.h <<\EOF
#define NO_MKTEMP 
EOF

fi
rm -f conftest*
fi
rm -f conftest*
fi


# Extract the library version ID from jpeglib.h.
echo $ac_n "checking libjpeg version number""... $ac_c" 1>&6
echo "configure:1650: checking libjpeg version number" >&5
JPEG_LIB_VERSION=`sed -e '/^#define JPEG_LIB_VERSION/!d' -e 's/^[^0-9]*\([0-9][0-9]*\).*$/\1/' $srcdir/jpeglib.h`
echo "$ac_t""$JPEG_LIB_VERSION" 1>&6


# Prepare to massage makefile.cfg correctly.
if test $ijg_cv_have_prototypes = yes; then
  A2K_DEPS=""
  COM_A2K="# "
else
  A2K_DEPS="ansi2knr"
  COM_A2K=""
fi


# ansi2knr needs -DBSD if string.h is missing
if test $ac_cv_header_string_h = no; then
  ANSI2KNRFLAGS="-DBSD"
else
  ANSI2KNRFLAGS=""
fi

# Substitutions to enable or disable libtool-related stuff
if test $USELIBTOOL = yes -a $ijg_cv_have_prototypes = yes; then
  COM_LT=""
else
  COM_LT="# "
fi

if test "x$LTSHARED" != xno; then
  FORCE_INSTALL_LIB="install-lib"
else
  FORCE_INSTALL_LIB=""
fi

# Set up -I directives
if test "x$srcdir" = x.; then
  INCLUDEFLAGS='-I$(srcdir)'
else
  INCLUDEFLAGS='-I. -I$(srcdir)'
fi

trap '' 1 2 15

trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15

test "x$prefix" = xNONE && prefix=$ac_default_prefix
# Let make expand exec_prefix.
test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'

# Any assignment to VPATH causes Sun make to only execute
# the first set of double-colon rules, so remove it if not needed.
# If there is a colon in the path, we need to keep it.
if test "x$srcdir" = x.; then
  ac_vpsub='/^[ 	]*VPATH[ 	]*=[^:]*$/d'
fi

trap 'rm -f $CONFIG_STATUS conftest*; exit 1' 1 2 15

DEFS=-DHAVE_CONFIG_H

# Without the "./", some shells look in PATH for config.status.
: ${CONFIG_STATUS=./config.status}

echo creating $CONFIG_STATUS
rm -f $CONFIG_STATUS
cat > $CONFIG_STATUS <<EOF
#! /bin/sh
# Generated automatically by configure.
# Run this file to recreate the current configuration.
# This directory was configured as follows,
# on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
#
# $0 $ac_configure_args
#
# Compiler output produced by configure, useful for debugging
# configure, is in ./config.log if it exists.

ac_cs_usage="Usage: $CONFIG_STATUS [--recheck] [--version] [--help]"
for ac_option
do
  case "\$ac_option" in
  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
    echo "running \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion"
    exec \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion ;;
  -version | --version | --versio | --versi | --vers | --ver | --ve | --v)
    echo "$CONFIG_STATUS generated by autoconf version 2.12"
    exit 0 ;;
  -help | --help | --hel | --he | --h)
    echo "\$ac_cs_usage"; exit 0 ;;
  *) echo "\$ac_cs_usage"; exit 1 ;;
  esac
done

ac_given_srcdir=$srcdir
ac_given_INSTALL="$INSTALL"

trap 'rm -fr `echo "Makefile:makefile.cfg jconfig.h:jconfig.cfg" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15
EOF
cat >> $CONFIG_STATUS <<EOF

# Protect against being on the right side of a sed subst in config.status.
sed 's/%@/@@/; s/@%/@@/; s/%g\$/@g/; /@g\$/s/[\\\\&%]/\\\\&/g;
 s/@@/%@/; s/@@/@%/; s/@g\$/%g/' > conftest.subs <<\\CEOF
$ac_vpsub
$extrasub
s%@CFLAGS@%$CFLAGS%g
s%@CPPFLAGS@%$CPPFLAGS%g
s%@CXXFLAGS@%$CXXFLAGS%g
s%@DEFS@%$DEFS%g
s%@LDFLAGS@%$LDFLAGS%g
s%@LIBS@%$LIBS%g
s%@exec_prefix@%$exec_prefix%g
s%@prefix@%$prefix%g
s%@program_transform_name@%$program_transform_name%g
s%@bindir@%$bindir%g
s%@sbindir@%$sbindir%g
s%@libexecdir@%$libexecdir%g
s%@datadir@%$datadir%g
s%@sysconfdir@%$sysconfdir%g
s%@sharedstatedir@%$sharedstatedir%g
s%@localstatedir@%$localstatedir%g
s%@libdir@%$libdir%g
s%@includedir@%$includedir%g
s%@oldincludedir@%$oldincludedir%g
s%@infodir@%$infodir%g
s%@mandir@%$mandir%g
s%@CC@%$CC%g
s%@CPP@%$CPP%g
s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%g
s%@INSTALL_DATA@%$INSTALL_DATA%g
s%@RANLIB@%$RANLIB%g
s%@LIBTOOL@%$LIBTOOL%g
s%@O@%$O%g
s%@A@%$A%g
s%@LN@%$LN%g
s%@INSTALL_LIB@%$INSTALL_LIB%g
s%@MEMORYMGR@%$MEMORYMGR%g
s%@JPEG_LIB_VERSION@%$JPEG_LIB_VERSION%g
s%@A2K_DEPS@%$A2K_DEPS%g
s%@COM_A2K@%$COM_A2K%g
s%@ANSI2KNRFLAGS@%$ANSI2KNRFLAGS%g
s%@COM_LT@%$COM_LT%g
s%@FORCE_INSTALL_LIB@%$FORCE_INSTALL_LIB%g
s%@INCLUDEFLAGS@%$INCLUDEFLAGS%g

CEOF
EOF

cat >> $CONFIG_STATUS <<\EOF

# Split the substitutions into bite-sized pieces for seds with
# small command number limits, like on Digital OSF/1 and HP-UX.
ac_max_sed_cmds=90 # Maximum number of lines to put in a sed script.
ac_file=1 # Number of current file.
ac_beg=1 # First line for current file.
ac_end=$ac_max_sed_cmds # Line after last line for current file.
ac_more_lines=:
ac_sed_cmds=""
while $ac_more_lines; do
  if test $ac_beg -gt 1; then
    sed "1,${ac_beg}d; ${ac_end}q" conftest.subs > conftest.s$ac_file
  else
    sed "${ac_end}q" conftest.subs > conftest.s$ac_file
  fi
  if test ! -s conftest.s$ac_file; then
    ac_more_lines=false
    rm -f conftest.s$ac_file
  else
    if test -z "$ac_sed_cmds"; then
      ac_sed_cmds="sed -f conftest.s$ac_file"
    else
      ac_sed_cmds="$ac_sed_cmds | sed -f conftest.s$ac_file"
    fi
    ac_file=`expr $ac_file + 1`
    ac_beg=$ac_end
    ac_end=`expr $ac_end + $ac_max_sed_cmds`
  fi
done
if test -z "$ac_sed_cmds"; then
  ac_sed_cmds=cat
fi
EOF

cat >> $CONFIG_STATUS <<EOF

CONFIG_FILES=\${CONFIG_FILES-"Makefile:makefile.cfg"}
EOF
cat >> $CONFIG_STATUS <<\EOF
for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
  case "$ac_file" in
  *:*) ac_file_in=`echo "$ac_file"|sed 's%[^:]*:%%'`
       ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
  *) ac_file_in="${ac_file}.in" ;;
  esac

  # Adjust a relative srcdir, top_srcdir, and INSTALL for subdirectories.

  # Remove last slash and all that follows it.  Not all systems have dirname.
  ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
  if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
    # The file is in a subdirectory.
    test ! -d "$ac_dir" && mkdir "$ac_dir"
    ac_dir_suffix="/`echo $ac_dir|sed 's%^\./%%'`"
    # A "../" for each directory in $ac_dir_suffix.
    ac_dots=`echo $ac_dir_suffix|sed 's%/[^/]*%../%g'`
  else
    ac_dir_suffix= ac_dots=
  fi

  case "$ac_given_srcdir" in
  .)  srcdir=.
      if test -z "$ac_dots"; then top_srcdir=.
      else top_srcdir=`echo $ac_dots|sed 's%/$%%'`; fi ;;
  /*) srcdir="$ac_given_srcdir$ac_dir_suffix"; top_srcdir="$ac_given_srcdir" ;;
  *) # Relative path.
    srcdir="$ac_dots$ac_given_srcdir$ac_dir_suffix"
    top_srcdir="$ac_dots$ac_given_srcdir" ;;
  esac

  case "$ac_given_INSTALL" in
  [/$]*) INSTALL="$ac_given_INSTALL" ;;
  *) INSTALL="$ac_dots$ac_given_INSTALL" ;;
  esac

  echo creating "$ac_file"
  rm -f "$ac_file"
  configure_input="Generated automatically from `echo $ac_file_in|sed 's%.*/%%'` by configure."
  case "$ac_file" in
  *Makefile*) ac_comsub="1i\\
# $configure_input" ;;
  *) ac_comsub= ;;
  esac

  ac_file_inputs=`echo $ac_file_in|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
  sed -e "$ac_comsub
s%@configure_input@%$configure_input%g
s%@srcdir@%$srcdir%g
s%@top_srcdir@%$top_srcdir%g
s%@INSTALL@%$INSTALL%g
" $ac_file_inputs | (eval "$ac_sed_cmds") > $ac_file
fi; done
rm -f conftest.s*

# These sed commands are passed to sed as "A NAME B NAME C VALUE D", where
# NAME is the cpp macro being defined and VALUE is the value it is being given.
#
# ac_d sets the value in "#define NAME VALUE" lines.
ac_dA='s%^\([ 	]*\)#\([ 	]*define[ 	][ 	]*\)'
ac_dB='\([ 	][ 	]*\)[^ 	]*%\1#\2'
ac_dC='\3'
ac_dD='%g'
# ac_u turns "#undef NAME" with trailing blanks into "#define NAME VALUE".
ac_uA='s%^\([ 	]*\)#\([ 	]*\)undef\([ 	][ 	]*\)'
ac_uB='\([ 	]\)%\1#\2define\3'
ac_uC=' '
ac_uD='\4%g'
# ac_e turns "#undef NAME" without trailing blanks into "#define NAME VALUE".
ac_eA='s%^\([ 	]*\)#\([ 	]*\)undef\([ 	][ 	]*\)'
ac_eB='$%\1#\2define\3'
ac_eC=' '
ac_eD='%g'

if test "${CONFIG_HEADERS+set}" != set; then
EOF
cat >> $CONFIG_STATUS <<EOF
  CONFIG_HEADERS="jconfig.h:jconfig.cfg"
EOF
cat >> $CONFIG_STATUS <<\EOF
fi
for ac_file in .. $CONFIG_HEADERS; do if test "x$ac_file" != x..; then
  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
  case "$ac_file" in
  *:*) ac_file_in=`echo "$ac_file"|sed 's%[^:]*:%%'`
       ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
  *) ac_file_in="${ac_file}.in" ;;
  esac

  echo creating $ac_file

  rm -f conftest.frag conftest.in conftest.out
  ac_file_inputs=`echo $ac_file_in|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
  cat $ac_file_inputs > conftest.in

EOF

# Transform confdefs.h into a sed script conftest.vals that substitutes
# the proper values into config.h.in to produce config.h.  And first:
# Protect against being on the right side of a sed subst in config.status.
# Protect against being in an unquoted here document in config.status.
rm -f conftest.vals
cat > conftest.hdr <<\EOF
s/[\\&%]/\\&/g
s%[\\$`]%\\&%g
s%#define \([A-Za-z_][A-Za-z0-9_]*\) *\(.*\)%${ac_dA}\1${ac_dB}\1${ac_dC}\2${ac_dD}%gp
s%ac_d%ac_u%gp
s%ac_u%ac_e%gp
EOF
sed -n -f conftest.hdr confdefs.h > conftest.vals
rm -f conftest.hdr

# This sed command replaces #undef with comments.  This is necessary, for
# example, in the case of _POSIX_SOURCE, which is predefined and required
# on some systems where configure will not decide to define it.
cat >> conftest.vals <<\EOF
EOF

# Break up conftest.vals because some shells have a limit on
# the size of here documents, and old seds have small limits too.

rm -f conftest.tail
while :
do
  ac_lines=`grep -c . conftest.vals`
  # grep -c gives empty output for an empty file on some AIX systems.
  if test -z "$ac_lines" || test "$ac_lines" -eq 0; then break; fi
  # Write a limited-size here document to conftest.frag.
  echo '  cat > conftest.frag <<CEOF' >> $CONFIG_STATUS
  sed ${ac_max_here_lines}q conftest.vals >> $CONFIG_STATUS
  echo 'CEOF
  sed -f conftest.frag conftest.in > conftest.out
  rm -f conftest.in
  mv conftest.out conftest.in
' >> $CONFIG_STATUS
  sed 1,${ac_max_here_lines}d conftest.vals > conftest.tail
  rm -f conftest.vals
  mv conftest.tail conftest.vals
done
rm -f conftest.vals

cat >> $CONFIG_STATUS <<\EOF
  rm -f conftest.frag conftest.h
  echo "/* $ac_file.  Generated automatically by configure.  */" > conftest.h
  cat conftest.in >> conftest.h
  rm -f conftest.in
  if cmp -s $ac_file conftest.h 2>/dev/null; then
    echo "$ac_file is unchanged"
    rm -f conftest.h
  else
    # Remove last slash and all that follows it.  Not all systems have dirname.
      ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
      if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
      # The file is in a subdirectory.
      test ! -d "$ac_dir" && mkdir "$ac_dir"
    fi
    rm -f $ac_file
    mv conftest.h $ac_file
  fi
fi; done

EOF
cat >> $CONFIG_STATUS <<EOF

EOF
cat >> $CONFIG_STATUS <<\EOF

exit 0
EOF
chmod +x $CONFIG_STATUS
rm -fr confdefs* $ac_clean_files
test "$no_create" = yes || ${CONFIG_SHELL-/bin/sh} $CONFIG_STATUS || exit 1