dnl Replace two autoconf macros that cause sed to barf on a --srcdir with
dnl a colon in it. -rask

undefine([AC_OUTPUT_FILES])
undefine([AC_OUTPUT_HEADER])

dnl Do the variable substitutions to create the Makefiles or whatever.
dnl This is a subroutine of AC_OUTPUT.  It is called inside an unquoted
dnl here document whose contents are going into config.status, but
dnl upon returning, the here document is being quoted.
dnl AC_OUTPUT_FILES(FILE...)
AC_DEFUN(AC_OUTPUT_FILES,
[# Protect against being on the right side of a sed subst in config.status.
changequote(, )dnl
sed 's/%@/@@/; s/@%/@@/; s/%g\$/@g/; /@g\$/s/[\\\\&%]/\\\\&/g;
 s/@@/%@/; s/@@/@%/; s/@g\$/%g/' > conftest.subs <<\\CEOF
changequote([, ])dnl
dnl These here document variables are unquoted when configure runs
dnl but quoted when config.status runs, so variables are expanded once.
$ac_vpsub
dnl Shell code in configure.in might set extrasub.
$extrasub
dnl Insert the sed substitutions of variables.
undivert(AC_DIVERSION_SED)
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-"$1"}
EOF
cat >> $CONFIG_STATUS <<\EOF
for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
changequote(, )dnl
  # 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 $ac_file|sed 's%/[^/][^/]*$%%'`
changequote([, ])dnl
  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.
changequote(, )dnl
    ac_dots=`echo $ac_dir_suffix|sed 's%/[^/]*%../%g'`
changequote([, ])dnl
  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="$ac_given_srcdir" ;;
  ?*:*) srcdir="$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

ifdef([AC_PROVIDE_AC_PROG_INSTALL],
[  case "$ac_given_INSTALL" in
changequote(, )dnl
  [/$]*) INSTALL="$ac_given_INSTALL" ;;
changequote([, ])dnl
  *) INSTALL="$ac_dots$ac_given_INSTALL" ;;
  esac
])dnl

  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/%"`
  sed -e "$ac_comsub
s%@configure_input@%$configure_input%g
s%@srcdir@%$srcdir%g
s%@top_srcdir@%$top_srcdir%g
ifdef([AC_PROVIDE_AC_PROG_INSTALL], [s%@INSTALL@%$INSTALL%g
])dnl
dnl The parens around the eval prevent an "illegal io" in Ultrix sh.
" $ac_file_inputs | (eval "$ac_sed_cmds") > $ac_file
dnl This would break Makefile dependencies.
dnl  if cmp -s $ac_file conftest.out 2>/dev/null; then
dnl    echo "$ac_file is unchanged"
dnl    rm -f conftest.out
dnl   else
dnl     rm -f $ac_file
dnl    mv conftest.out $ac_file
dnl  fi
fi; done
rm -f conftest.s*
])

dnl Create the config.h files from the config.h.in files.
dnl This is a subroutine of AC_OUTPUT.  It is called inside a quoted
dnl here document whose contents are going into config.status.
dnl AC_OUTPUT_HEADER(HEADER-FILE...)
define(AC_OUTPUT_HEADER,
[changequote(<<, >>)dnl
# 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'
changequote([, ])dnl

if test "${CONFIG_HEADERS+set}" != set; then
EOF
dnl Support passing AC_CONFIG_HEADER a value containing shell variables.
cat >> $CONFIG_STATUS <<EOF
  CONFIG_HEADERS="$1"
EOF
cat >> $CONFIG_STATUS <<\EOF
fi
for ac_file in .. $CONFIG_HEADERS; do if test "x$ac_file" != x..; then
changequote(, )dnl
  # 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
changequote([, ])dnl

  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/%"`
  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
dnl Using a here document instead of a string reduces the quoting nightmare.
dnl Putting comments in sed scripts is not portable.
cat > conftest.hdr <<\EOF
changequote(<<, >>)dnl
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
changequote([, ])dnl
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
changequote(, )dnl
s%^[ 	]*#[ 	]*undef[ 	][ 	]*[a-zA-Z_][a-zA-Z_0-9]*%/* & */%
changequote([, ])dnl
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

dnl Now back to your regularly scheduled config.status.
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.
  changequote(, )dnl
    ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
  changequote([, ])dnl
    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

])