#!/bin/sh
# Guess values for system-dependent variables and create Makefiles.
# Generated automatically using autoconf.
# Copyright (C) 1991, 1992 Free Software Foundation, Inc.

# 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, 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., 675 Mass Ave, Cambridge, MA 02139, USA.

# Usage: configure [--srcdir=DIR] [--host=HOST] [--gas] [--nfp]
#        [--prefix=PREFIX] [--exec_prefix=PREFIX] [--with-PROGRAM] [TARGET]
# Ignores all args except --srcdir, --prefix, and --exec_prefix.

trap 'rm -f conftest* core; exit 1' 1 3 15

for arg in $*; do
  # Handle --exec_prefix with a space before the argument.
  if test x$next_exec_prefix = xyes; then exec_prefix=$arg; next_exec_prefix=
  # Handle --host with a space before the argument.
  elif test x$next_host = xyes; then next_host=
  # Handle --prefix with a space before the argument.
  elif test x$next_prefix = xyes; then prefix=$arg; next_prefix=
  # Handle --srcdir with a space before the argument.
  elif test x$next_srcdir = xyes; then srcdir=$arg; next_srcdir=
  else
    case $arg in
     -exec_prefix=* | --exec_prefix=* | --exec_prefi=* | --exec_pref=* | --exec_pre=* | --exec_pr=* | --exec_p=* | --exec_=* | --exec=* | --exe=* | --ex=* | --e=*)
	exec_prefix=`echo $arg | sed 's/[-a-z_]*=//'` ;;
     -exec_prefix | --exec_prefix | --exec_prefi | --exec_pref | --exec_pre | --exec_pr | --exec_p | --exec_ | --exec | --exe | --ex | --e)
	next_exec_prefix=yes ;;

     -gas | --gas | --ga | --g) ;;

     -host=* | --host=* | --hos=* | --ho=* | --h=*) ;;
     -host | --host | --hos | --ho | --h)
	next_host=yes ;;

     -nfp | --nfp | --nf | --n) ;;

     -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
	prefix=`echo $arg | sed 's/[-a-z_]*=//'` ;;
     -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
	next_prefix=yes ;;

     -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=* | --s=*)
	srcdir=`echo $arg | sed 's/[-a-z_]*=//'` ;;
     -srcdir | --srcdir | --srcdi | --srcd | --src | --sr | --s)
	next_srcdir=yes ;;

     -with-* | --with-*) ;;

     *) ;;
    esac
  fi
done

rm -f conftest*
compile='${CC-cc} $DEFS conftest.c -o conftest $LIBS >/dev/null 2>&1'

# A filename unique to this package, relative to the directory that
# configure is in, which we can look for to find out if srcdir is correct.
unique_file=tex/tex.web

# Makefile rules whose targets are searched for in VPATH need to use $<.
# However, old makes do not support it, so we use a combination
# construction in Makefile.in: `$file<'.
# If srcdir is `.', we use sed to change that to `file' for old makes.
# Otherwise, we use sed to change it to `$<'.
# vpsub is the sed program, which changes `$file<' to one or the other.
vpsub='s,\$([\-./a-zA-Z0-9_][\-./a-zA-Z0-9_]*)<,\1,g'

# Find the source files, if location was not specified.
if test -z "$srcdir"; then
  srcdirdefaulted=yes; srcdir=.
  if test ! -r $unique_file; then srcdir=..; fi
fi
if test ! -r $srcdir/$unique_file; then
  if test x$srcdirdefaulted = xyes; then
    echo "configure: Can not find sources in \`.' or \`..'." 1>&2
  else
    echo "configure: Can not find sources in \`${srcdir}'." 1>&2
  fi
  exit 1
fi
if test $srcdir != .; then
  case $srcdir in
    /*|~*) ;;
    *) srcdir=`pwd`/$srcdir ;; # Make relative path absolute.
  esac
  vpsub='s,\$([\-./a-zA-Z0-9_][\-./a-zA-Z0-9_]*)<,\$<,g'
fi


# The Bourne shell writes "command not found" to /dev/tty, so if we get
# a usage message on stderr, we have the program.
#
# ksh and zsh write "command not found" to stderr, but test -n does not
# want any output if there is no program.  So we use the `type' builtin
# instead for them (and bash).
if test "$RANDOM" = "$RANDOM"; then
  checkfor='test -n "`$checkprog $checkargs 2>&1`"'
else
  checkfor='type $checkprog >/dev/null 2>&1'
fi



compile='rm -f conftest.t;
  mv conftest.c conftest.t;
  echo "$DEFS" > conftest.c;
  cat conftest.t >> conftest.c;
  rm -f conftest.t;
  ${CC-cc} conftest.c -o conftest $LIBS >/dev/null 2>&1'


# Make sure they've decided on their preferences.
sitedir=$srcdir/lib
siteh=$sitedir/site.h
if test ! -r $siteh
then
  echo "Please copy $sitedir/site.h.in to $siteh, and edit it."
  echo "Then run configure again."
  exit 1
fi

echo checking for tex to derive installation directory prefix
if test -z "$prefix"
then
  saveifs="$IFS"; IFS="$IFS:"
  for dir in $PATH; do
    test -z "$dir" && dir=.
    if test $dir != . && test -f $dir/tex; then
      # Not all systems have dirname.
      prefix=`echo $dir|sed 's,/[^/][^/]*$,,'`
      break
    fi
  done
  IFS="$saveifs"
fi


echo checking for gcc
checkprog=gcc checkargs=''
test -z "$CC" && eval $checkfor && CC='gcc '
CC=${CC-cc}

cat <<EOF > conftest.c
main() {
#ifdef __GNUC__
  exit(0);
#else
  exit(1);
#endif
}
EOF
eval $compile
if test -s conftest && (./conftest) 2>/dev/null; then
  GCC=1 # For later tests.
  CC="$CC -g"
else
  :
fi
rm -f conftest*

echo checking how to run the C preprocessor
if test -z "$CPP"; then
  CPP='${CC-cc} -E'
  cat <<EOF > conftest.c
#include <stdio.h>
EOF
err=`eval "$CPP conftest.c 2>&1 >/dev/null"`
if test -z "$err"; then
  :
else
  CPP=/lib/cpp
fi
rm -f conftest*
fi

if test -n "$GCC"; then
  echo checking whether -traditional is needed
  prog=
cat <<EOF > conftest.c
#include <termio.h>
EOF
err=`eval "$CPP conftest.c 2>&1 >/dev/null"`
if test -z "$err"; then
  prog='#include <sys/types.h>
#include <termio.h>
main() {
  struct termio t;
  exit(ioctl(0, TCGETA, &t) == 0);
}'
else
  :
fi
rm -f conftest*
if test -z "$prog"; then
cat <<EOF > conftest.c
#include <sgtty.h>
EOF
err=`eval "$CPP conftest.c 2>&1 >/dev/null"`
if test -z "$err"; then
  prog='#include <sys/types.h>
#include <sgtty.h>
main() {
  struct sgttyb t;
  exit(ioctl(0, TIOCGETP, &t) == 0);
}'
else
  :
fi
rm -f conftest*
fi
if test -n "$prog"; then
  cat <<EOF > conftest.c
$prog
EOF
eval $compile
if test -s conftest && (./conftest) 2>/dev/null; then
  CC="$CC -traditional"
else
  :
fi
rm -f conftest*
fi
fi

echo checking for install
# Make sure to not get the incompatible SysV /etc/install and
# /usr/sbin/install, which might be in PATH before a BSD-like install.
if test -z "$INSTALL"; then
  saveifs="$IFS"; IFS="$IFS:"
  for dir in $PATH; do
    test -z "$dir" && dir=.
    case $dir in
    /etc|/usr/sbin) ;;
    *)
      if test -f $dir/install; then
	INSTALL="$dir/install -c"
	INSTALL_PROGRAM='$(INSTALL)'
	INSTALL_DATA='$(INSTALL) -m 644'
	break
      fi
      ;;
    esac
  done
  IFS="$saveifs"
fi
INSTALL=${INSTALL-cp}
INSTALL_PROGRAM=${INSTALL_PROGRAM-'$(INSTALL)'}
INSTALL_DATA=${INSTALL_DATA-'$(INSTALL)'}

echo checking for ranlib
checkprog=ranlib checkargs='/dev/null'
test -z "$RANLIB" && eval $checkfor && RANLIB='ranlib '
RANLIB=${RANLIB-true}

echo checking for bison
checkprog=bison checkargs=''
test -z "$YACC" && eval $checkfor && YACC='bison -y'
YACC=${YACC-yacc}

echo checking for flex
checkprog=flex checkargs='conftest'
test -z "$LEX" && eval $checkfor && LEX='flex '
LEX=${LEX-lex}

if test -z "$LEXLIB"
then
  case "$LEX" in
  flex*)
    if test -r /usr/local/lib/libfl.a
    then LEXLIB=/usr/local/lib/libfl.a
    elif test -r ${prefix}/lib/libfl.a
    then LEXLIB=${prefix}/lib/libfl.a
    else LEXLIB="-lfl"
    fi
    ;;
  *) LEXLIB="-ll" ;;
  esac
fi
echo checking how to run the C preprocessor
if test -z "$CPP"; then
  CPP='${CC-cc} -E'
  cat <<EOF > conftest.c
#include <stdio.h>
EOF
err=`eval "$CPP conftest.c 2>&1 >/dev/null"`
if test -z "$err"; then
  :
else
  CPP=/lib/cpp
fi
rm -f conftest*
fi

echo checking how to declare yytext
# Figure out what yytext is by creating a minimal parser and
# examining the (preprocessed, in case macros are used) output.
if test -z "$DECLARE_YYTEXT"
then
  echo "%%" | $LEX
  DECLARE_YYTEXT=`eval $CPP lex.yy.c \
    | sed -n '/extern.*yytext/s/^.*extern/extern/p'`
  rm -f lex.yy.c
fi
DEFS="${DEFS}#define DECLARE_YYTEXT "$DECLARE_YYTEXT"
"
echo checking for ln -s
rm -f conftestdata
if ln -s X conftestdata 2>/dev/null
then
  rm -f conftestdata
  LN_S="ln -s"
else
  LN_S=ln
fi



echo checking for POSIXized ISC
if test -d /etc/conf/kconfig.d &&
  grep _POSIX_VERSION /usr/include/sys/unistd.h >/dev/null 2>&1
then
  ISC=1 # If later tests want to check for ISC.
  DEFS="${DEFS}#define _POSIX_SOURCE 1
"
  if test -n "$GCC"; then
    CC="$CC -posix"
  else
    CC="$CC -Xp"
  fi
fi


echo checking for directory library header
echo checking for dirent.h
cat <<EOF > conftest.c
#include <dirent.h>
EOF
err=`eval "$CPP conftest.c 2>&1 >/dev/null"`
if test -z "$err"; then
  DEFS="${DEFS}#define DIRENT 1
" dirheader=dirent.h
else
  :
fi
rm -f conftest*

if test -z "$dirheader"; then
echo checking for sys/ndir.h
cat <<EOF > conftest.c
#include <sys/ndir.h>
EOF
err=`eval "$CPP conftest.c 2>&1 >/dev/null"`
if test -z "$err"; then
  DEFS="${DEFS}#define SYSNDIR 1
" dirheader=sys/ndir.h
else
  :
fi
rm -f conftest*

fi
test -z "$dirheader" && dirheader=sys/dir.h

echo checking for closedir return value
cat <<EOF > conftest.c
#include <$dirheader>
int closedir(); main(){exit (0);}
EOF
eval $compile
if test -s conftest && (./conftest) 2>/dev/null; then
  :
else
  DEFS="${DEFS}#define VOID_CLOSEDIR 1
"
fi
rm -f conftest*

echo checking for limits.h
cat <<EOF > conftest.c
#include <limits.h>
EOF
err=`eval "$CPP conftest.c 2>&1 >/dev/null"`
if test -z "$err"; then
  : 
else
  DEFS="${DEFS}#define LIMITS_H_MISSING 1
"
fi
rm -f conftest*

echo checking for float.h
cat <<EOF > conftest.c
#include <float.h>
EOF
err=`eval "$CPP conftest.c 2>&1 >/dev/null"`
if test -z "$err"; then
  : 
else
  DEFS="${DEFS}#define FLOAT_H_MISSING 1
"
fi
rm -f conftest*

echo "checking for memcpy in string.h"
echo '#include <string.h>' > conftest.c
eval "$CPP conftest.c > conftest.out 2>&1"
if egrep 'memcpy' conftest.out >/dev/null 2>&1; then
  :
else 
  echo checking for memory.h
cat <<EOF > conftest.c
#include <memory.h>
EOF
err=`eval "$CPP conftest.c 2>&1 >/dev/null"`
if test -z "$err"; then
  DEFS="${DEFS}#define NEED_MEMORY_H 1
"
else
  :
fi
rm -f conftest*

fi
rm -f conftest*


echo checking for ANSI C header files
cat <<EOF > conftest.c
#include <stdlib.h>
#include <string.h>
#include <limits.h>
EOF
err=`eval "$CPP conftest.c 2>&1 >/dev/null"`
if test -z "$err"; then
  DEFS="${DEFS}#define STDC_HEADERS 1
"
else
  :
fi
rm -f conftest*

echo checking for unistd.h
cat <<EOF > conftest.c
#include <unistd.h>
EOF
err=`eval "$CPP conftest.c 2>&1 >/dev/null"`
if test -z "$err"; then
  DEFS="${DEFS}#define HAVE_UNISTD_H 1
"
else
  :
fi
rm -f conftest*

echo checking for BSD string and memory functions
echo "#include <strings.h>
main() { exit(0); } t() { rindex(0, 0); bzero(0, 0); }" > conftest.c
eval $compile
if test -s conftest && (./conftest) 2>/dev/null; then
  :
else
  DEFS="${DEFS}#define USG 1
"
fi
rm -f conftest*


echo "checking for (void|sighandler_t).*signal in signal.h"
echo '#include <signal.h>' > conftest.c
eval "$CPP conftest.c > conftest.out 2>&1"
if egrep '(void|sighandler_t).*signal' conftest.out >/dev/null 2>&1; then
  :
else 
  DEFS="${DEFS}#define RETSIGTYPE int
"
fi
rm -f conftest*



echo checking for unsigned characters
cat <<EOF > conftest.c
/* volatile prevents gcc2 from optimizing the test away on sparcs.  */
#if !__STDC__
#define volatile
#endif
main() {
#ifdef __CHAR_UNSIGNED__
  exit(1); /* No need to redefine it.  */
#else
  volatile char c = 255; exit(c < 0);
#endif
}
EOF
eval $compile
if test -s conftest && (./conftest) 2>/dev/null; then
  DEFS="${DEFS}#define __CHAR_UNSIGNED__ 1
"
else
  :
fi
rm -f conftest*

echo checking byte ordering
cat <<EOF > conftest.c
main () {
  /* Are we little or big endian?  From Harbison&Steele.  */
  union
  {
    long l;
    char c[sizeof (long)];
  } u;
  u.l = 1;
  exit (u.c[sizeof (long) - 1] == 1);
}
EOF
eval $compile
if test -s conftest && (./conftest) 2>/dev/null; then
  :
else
  DEFS="${DEFS}#define WORDS_BIGENDIAN 1
"
fi
rm -f conftest*

echo checking for window system libraries
# Figure out window system libraries by inspecting site.h.
if grep -s define.*SUNWIN $siteh
then wlibs="$wlibs -lsuntool -lsunwindow -lpixrect"
fi
if grep -s define.*X11WIN $siteh
then wlibs="$wlibs -lXt -lX11"
elif grep define.*X10WIN $siteh
then wlibs="$wlibs -lX"
fi
echo checking for ISC X window libraries
if test -n "$ISC"
then wlibs="$wlibs -lnsl_s -linet"
fi

echo checking for X11 headers and libraries
dir=""
cat <<EOF > conftest.c
#include <X11/Xaw/Box.h>
EOF
err=`eval "$CPP conftest.c 2>&1 >/dev/null"`
if test -z "$err"; then
  :
else
  if test -r /usr/local/include/X11/Xaw/Box.h
  then dir=/usr/local/include
  elif test -r /usr/lpp/X11/Xamples/include/Box.h
  then dir=/usr/lpp/X11/Xamples/include
  fi

fi
rm -f conftest*
if test -n "$dir"
then xincludedir=-I$dir
     
fi
# Now check for the libraries.
dir1=""
if test -r /usr/local/lib/libXaw.a
then dir1=/usr/local/lib
elif test -r /usr/lpp/X11/Xamples/lib/Xaw/libXaw.a
then dir1=/usr/lpp/X11/Xamples/lib/Xaw
fi
dir2=""
if test -r /usr/lpp/X11/Xamples/lib/Xmu/libXmu.a
then dir2=/usr/lpp/X11/Xamples/lib/Xmu
fi
test -n "$dir1" && xlibdir=-L$dir1
test -n "$dir2" && xlibdir="$xlibdir -L$dir2"


echo setting up TeX/MF/BibTeX change files
(cd tex; rm -f ctex.ch; cp tex.ch ctex.ch)
if test -n "`grep '#define.*SMALLTeX' $siteh`"
then
  (cd tex; patch ctex.ch small.diff)
  DEFS="${DEFS}#define GLUERATIO_TYPE float
"
fi
# Similarly for Metafont.
(cd mf; rm -f cmf.ch; cp mf.ch cmf.ch)
if test -n "`grep '#define.*SMALLMF' $siteh`"
then (cd mf; patch cmf.ch small.diff)
fi
# And similarly for BibTeX.
(cd bibtex; rm -f cbibtex.ch; cp bibtex.ch cbibtex.ch)
if test -n "`grep '#define.*SMALLBibTeX' $siteh`"
then (cd bibtex; patch cbibtex.ch small.diff)
fi


trap 'rm -f ./Makefile config.status lib/c-auto.h; exit 1' 1 3 15

if test -n "$prefix"; then
  test -z "$exec_prefix" && exec_prefix='$(prefix)'
  prsub="s,^prefix[ 	]*=.*$,prefix = $prefix,"
fi
if test -n "$exec_prefix"; then
  prsub="$prsub
s,^exec_prefix[ 	]*=.*$,exec_prefix = $exec_prefix,"
fi

for file in ./Makefile; do
  # Not all systems have dirname.
  dir=`echo $file|sed 's,/[^/][^/]*$,,'`
  test "$dir" != "$file" && test ! -d $dir && mkdir $dir
  echo creating $file
  rm -f $file
  echo "# Generated automatically from `basename $file`.in by configure." > $file
  sed -e "
$vpsub
$prsub
s,@CC@,$CC,
s,@CPP@,$CPP,
s,@INSTALL@,$INSTALL,
s,@INSTALL_PROGRAM@,$INSTALL_PROGRAM,
s,@INSTALL_DATA@,$INSTALL_DATA,
s,@RANLIB@,$RANLIB,
s,@YACC@,$YACC,
s,@LEX@,$LEX,
s,@LEXLIB@,$LEXLIB,
s,@LN_S@,$LN_S,
s,@wlibs@,$wlibs,
s,@xincludedir@,$xincludedir,
s,@xlibdir@,$xlibdir,
s,@LIBS@,$LIBS,
s,@srcdir@,$srcdir,
" $srcdir/${file}.in >> $file
echo "
# Prevent GNU make v3 from overflowing arg limit on SysV.
.NOEXPORT:" >> $file
done

echo creating lib/c-auto.h
rm -f lib/c-auto.h
echo "/* lib/c-auto.h.  Generated automatically by configure.  */" > lib/c-auto.h
echo "$DEFS
/* END_OF_DEFS */" |
awk '
# The escaped newlines are to work around a bug in GNU m4 0.99
# in quoting more than 2 arguments in a single line.
BEGIN { filenum = 1 }
filenum == 1 && $1 == "#define" \
{ defs[$2] = $3
  for (i = 4; i <= NF; i++)
    defs[$2] = defs[$2] " " $i
}
/END_OF_DEFS/ { filenum = 2; next }
filenum == 2 && $1 == "#define" && \
defs[$2] != "" {
  $3 = defs[$2]
  print; next
}
filenum == 2 && $1 == "#undef" && \
defs[$2] != "" {
  $1 = "#define"
  $2 = $2 " " defs[$2]
  print; next
}
filenum == 2 { print }
' - $srcdir/lib/c-auto.h.in >> lib/c-auto.h

echo creating config.status
rm -f config.status
echo "#!/bin/sh
# Generated automatically by configure.
# Run this file to recreate the current configuration.
$0 $*" > config.status
chmod +x config.status