#!/bin/sh

config_guess=1

if [ -z "$config_functions" ]; then
  . ./config.functions
fi

if [ -z "$CC" ] ; then CC="gcc" ; fi
if [ -z "$CXX" ] ; then CXX="g++" ; fi

ARCH=unknown
MACHINE=unknown
OSNAME=unknown
OSVERSION=unknown

uname_machine=`(uname -m) 2>/dev/null` || uname_machine=unknown
uname_release=`(uname -r) 2>/dev/null` || uname_machine=unknown
uname_system=`(uname -s) 2>/dev/null` || uname_machine=unknown
uname_version=`(uname -v) 2>/dev/null` || uname_machine=unknown
uname_string="${uname_machine}:${uname_system}:${uname_release}:${uname_version}"

echo "Checking for machine type..."

machine_not_supported ()
{
  echo "***"
  echo "*** Fatal error - machine type is not supported yet [${uname_string}]"
  echo "***"
  exit 1
}

case ${uname_string} in

*:AIX:*:4)
  cpu_id=`/usr/sbin/lsdev -C -c processor -S available |\
    head -1 | awk '{ print $1 }'`
  cpu_name=`/usr/sbin/lsattr -EHl ${cpu_id} |\
    tail -1 | awk '{ print $2 }'`
  case $cpu_name in
  PowerPC*)
    ARCH=powerpc
    MACHINE=ppc604
    ;;
  *)
    machine_not_supported
    ;;
  esac
  OSNAME=AIX
  OSVERSION=4.${uname_release}
  PICFLAGS=
  PTHREAD_CFLAGS="-mthreads"
  PTHREAD_LDFLAGS="-mthreads"
  SOEXT="a"
  AREXT="a"
  CLIBTYPE_DEFAULT=shared
  CXXLIBTYPE_DEFAULT=static
  cfgname=aix-${OSVERSION}
  ;;
i?86:Linux:*)
  ARCH=ia32
  MACHINE=`uname -m`
  OSNAME=Linux
  OSVERSION=`uname -r`
  cat <<EOF >cfgtest.c
    #include <stdio.h>
    #include <stdlib.h>
      
    int main()
    {
      printf("%d\n",__GNU_LIBRARY__);
    }
EOF
  $CC -o cfgtest cfgtest.c >/dev/null 2>&1
  tmp=`./cfgtest 2>>/dev/null`
  rm -f cfgtest cfgtest.c
  if [ $tmp -lt 6 ]; then
    echo "***"
    echo "*** Fatal error - libc too old"
    echo "***"
    exit 1
  else
    cat <<EOF >cfgtest.c
      #include <stdio.h>
      #include <stdlib.h>
	
      int main()
      {
	printf("%d.%d\n",__GLIBC__,__GLIBC_MINOR__);
      }
EOF
    $CC -o cfgtest cfgtest.c >/dev/null 2>&1
    glibcversion=`./cfgtest 2>>/dev/null`
    rm -f cfgtest cfgtest.c
  fi
  PICFLAGS="-fPIC"
  PTHREAD_CFLAGS="-D_REENTRANT"
  PTHREAD_LDFLAGS="-lpthread"
  SOEXT="so"
  AREXT="a"
  SONAME_FLAGS="-Wl,-soname -Wl,@soname"
  CLIBTYPE_DEFAULT=shared
  CXXLIBTYPE_DEFAULT=shared
  cfgname=ia32-linux-glibc${glibcversion}
  ;;
*)
  machine_not_supported
  ;;
esac

echo "  arch=${ARCH}"
echo "  machine=${MACHINE}"
echo "  os=${OSNAME}-${OSVERSION}"
if [ "${OSNAME}" = "Linux" ]; then
  echo "  glibc=${glibcversion}"
fi

if [ -z "${OFLAGS}" ]; then OFLAGS="-O2" ; fi
if [ -z "${WFLAGS}" ]; then WFLAGS="-W -Wall" ; fi
if [ -z "${DFLAGS}" ]; then DFLAGS="-g -DDEBUG" ; fi