dnl Process this file with autoconf to produce a configure script.
AC_INIT(buffer.c)

AC_CONFIG_HEADER(config.h)

dnl Checks for compiler
AC_PROG_CC
AC_PROG_GCC_TRADITIONAL
AC_PROG_INSTALL
AC_PROG_LN_S

dnl Check for Systems
AC_AIX
AC_ISC_POSIX
AC_MINIX
AC_CANONICAL_SYSTEM

AC_C_CONST
AC_C_INLINE


dnl Check for configuration options
dnl Enable OS/2 extended density format disks
undefine([xdf])dnl
AC_ARG_ENABLE(xdf,
[  --enable-xdf           support for OS/2 extended density format disks],
[if test x$enableval = xyes; then
  AC_DEFINE(USE_XDF)
fi],AC_DEFINE(USE_XDF))


dnl Check for configuration options
dnl Enable usage of vold on Solaris
undefine([vold])dnl
AC_ARG_ENABLE(vold,
[  --enable-vold          compatibility with Solaris' vold],
[if test x$enableval = xyes; then
  AC_DEFINE(USING_VOLD)
fi])


dnl Check for configuration options
dnl Enable usage of vold on Solaris
undefine([new-vold])dnl
AC_ARG_ENABLE(new-vold,
[  --enable-new-vold          compatibility with Solaris' vold, new version],
[newVold=x$enableval
if test x$enableval = xyes; then
  AC_DEFINE(USING_NEW_VOLD)
fi])


dnl Check for configuration options
dnl Debugging
undefine([debug])dnl
AC_ARG_ENABLE(debug,
[  --enable-debug         debuging messages],
[if test x$enableval = xyes; then
  AC_DEFINE(DEBUG)
fi])


dnl Check for configuration options
dnl Raw terminal code (enabled by default)
undefine([raw_term])dnl
AC_ARG_ENABLE(raw_term,
[  --enable-raw-term      raw terminal (readkey behaviour, default)],
[if test x$enableval = xyes; then
  AC_DEFINE(USE_RAWTERM)
fi],
AC_DEFINE(USE_RAWTERM))


dnl Checks for libraries.

dnl AC_IRIX_SUN
AC_CHECK_LIB(sun, getpwnam)

dnl Checks for header files.
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(getopt.h sys/stat.h stdlib.h unistd.h libc.h \
fcntl.h limits.h sys/file.h sys/ioctl.h sys/time.h strings.h string.h \
sys/param.h memory.h malloc.h signal.h sys/signal.h utime.h sgtty.h)
AC_CHECK_HEADERS(termio.h sys/termio.h, [break])
AC_CHECK_HEADERS(termios.h sys/termios.h, [break])
dnl Apparently termio before termios is preferred by A/UX, AIX and SCO

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE
AC_TYPE_SIZE_T
AC_HEADER_TIME
AC_STRUCT_TM

dnl Checks for library functions.
AC_TYPE_SIGNAL
AC_CHECK_FUNCS(strerror random srandom strchr strrchr lockf flock \
strcasecmp strncasecmp atexit on_exit getpass memmove \
strdup strcspn strspn strtoul memcpy strpbrk memset seteuid setresuid \
tcsetattr tcflush)


AC_CHECK_FUNCS(utimes utime, [break])
AC_CHECK_FUNCS(tzset gettimeofday)

[
host_os0=`echo $host_os | sed 's/-/_/g'`
host_os1=`echo $host_os0 | sed 's/\./_/g'`
host_os2=`echo $host_os0 | sed 's/^\([^.]*\)\..*$/\1/g'`
host_os3=`echo $host_os2 | sed 's/^\([^0-9]*\)[0-9]*$/\1/g'`
host_cpu1=`echo $host_cpu | sed 's/\./_/g'`
host_vendor1=`echo $host_vendor | sed 's/\./_/g'`
HOST_ID="-DCPU_$host_cpu1 -DVENDOR_$host_vendor1 -DOS_$host_os1"
if [ $host_os1 != $host_os2 ] ; then
	HOST_ID="$HOST_ID -DOS_$host_os2"
fi
if [ $host_os1 != $host_os3 ] && [ $host_os2 != $host_os3 ] ; then
	HOST_ID="$HOST_ID -DOS_$host_os3"
fi

my_host_os=`echo $host_os1 $host_os2 $host_os3 | sort -u`
objs=`echo $srcdir/*.c | sed 's/\.c$/.o/' `
if [ "X$GCC" = "Xyes" ] ; then
    if [ "$host_cpu" = i486 ] ; then
	    CFLAGS="$CFLAGS -m486"
    fi
    Wall=-Wall
    if [ "$host_os3" = sunos ] ; then
	    Wall=""
    fi
    if [ "$host_os3" = ultrix ] ; then
	    Wall=""
    fi
    if [ "$host_os3" = linux ] ; then
	    CFLAGS="$CFLAGS -fno-strength-reduce"
    fi
    if [ "$host_os3" = aux ] ; then
	    CFLAGS="$CFLAGS -ZP"
	    MACHDEPLIBS="-lposix -UTIL"
    fi	
    CFLAGS="$CFLAGS $Wall"
else
    if [ $host_os3 = hpux ] ; then
	    CPPFLAGS="$CPPFLAGS -Ae"
    fi

    if [ $host_os3 = xenix ] ; then
	    CFLAGS="$CFLAGS -M2e"
    fi
fi

if [ $host_os3 = hpux ] ; then
	    LDFLAGS="$LDFLAGS -z"
fi


if [ $host_vendor = linux ] ; then
    LDFLAGS="$LDFLAGS -z"
fi

if [ $host_os3 = xenix ] ; then
    LDFLAGS="$LDFLAGS -M2e -i -f 5000"
fi

if [ $host_os2 = sysv4 ] ; then
    SHLIB="-lc -L/usr/ucblib -lucb"
else
    SHLIB=""
fi

if [ $host_os3 = isc ] ; then
    CFLAGS="$CFLAGS -D_SYSV3"
    SHLIB="-lc_s"
fi

if [ $host_os3 = solaris -a x$newVold = xxyes ] ; then
    SHLIB="$SHLIB -s -lvolmgt"
fi

if [ $host_os3 = nextstep ] ; then
    CFLAGS="$CFLAGS -DBSD"
    SHLIB=""
fi
]

AC_SUBST(MACHDEPLIBS)
AC_SUBST(SHLIB)
AC_SUBST(host_cpu)
AC_SUBST(HOST_ID)
AC_OUTPUT(Makefile)