:
# Guess values for system-dependant variables and create `Makefile'.
# Copyright (C) 1991 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.

trap 'rm -f defstest defstest.c Makefile; exit 1' 1 3 15

set +u # Make sure unset variables are ok.

# Make sure we don't find the System V /etc/install.
PATH=`echo $PATH|sed 's,^:,|,
s,:$,|,
s,:/usr/etc,,g
s,/usr/etc:,,g
s,:/etc,,g
s,/etc:,,g
s,|,:,g'`

if test "$RANDOM" = "$RANDOM"; then
  # Plain old Bourne shell.
  echo checking for gcc
  test -z "$CC" -a -n "`gcc 2>&1`" && CC="gcc -O"

  echo checking for install
  if test -z "$INSTALL" -a -n "`install 2>&1`"; then
    INSTALL="install -c"
  fi
else
  # ksh, bash or zsh.
  echo checking for gcc
  test -z "$CC" && type gcc && CC="gcc -O"

  echo checking for install
  if test -z "$INSTALL" && type install; then
    INSTALL="install -c"
  fi
fi

CC=${CC-cc}
INSTALL=${INSTALL-cp}
INCLUDEDIR=${INCLUDEDIR-/usr/include}

rm -f defstest defstest.c
compile="$CC $DEFS defstest.c -o defstest $LIBS >/dev/null 2>&1"

# Check for various header files.

echo checking signal handler return type
grep 'int[ 	]*(\*signal[ 	]*(' $INCLUDEDIR/signal.h >/dev/null 2>&1 &&
  DEFS="$DEFS -DSIGTYPE=int"

echo checking for ANSI C header files
echo "#include <stdlib.h>
#include <string.h>
main () { exit(0); strerror(0); }" > defstest.c
eval $compile
if test -s defstest && ./defstest 2>/dev/null; then
  DEFS="$DEFS -DSTDC_HEADERS"
fi
rm -f defstest defstest.c

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

# Check whether various functions exist.

# Functions we provide replacements for.
for func in bsearch
do
  echo checking for $func
  echo "main() { exit(0); ${func}(); }" > defstest.c
  eval $compile
  if test -s defstest && ./defstest 2>/dev/null; then :
  else LIBOBJS="$LIBOBJS ${func}.o"
  fi
  rm -f defstest defstest.c
done

# Check other misc. things.

echo checking how to get alloca
echo '
#ifdef __GNUC__
#define alloca __builtin_alloca
#else
#ifdef sparc
#include <alloca.h>
#else
#ifdef _AIX
#pragma alloca
#else
char *alloca ();
#endif
#endif
#endif
main() { char *p = (char *) alloca(1); exit(0); }' > defstest.c
eval $compile
if test -s defstest && ./defstest 2>/dev/null; then :
else LIBS="$LIBS -lPW"
fi
rm -f defstest defstest.c

echo '# Generated automatically from Makefile.in by configure.' > Makefile
sed -e "
s,@CC@,$CC,
s,@INSTALL@,$INSTALL,
s,@DEFS@,$DEFS,
s,@LIBS@,$LIBS,
s,@LIBOBJS@,$LIBOBJS,
" Makefile.in >> Makefile