configure

#!/bin/sh

#
# Detect machine
#
MACHINE=`uname -m`

if echo $MACHINE | grep sun4u > /dev/null; then
    MACHINE_NAME=sparc
elif echo $MACHINE | grep i.86 > /dev/null; then
    MACHINE_NAME=i386
elif echo $MACHINE | grep alpha > /dev/null; then
    MACHINE_NAME=alpha
else
    echo "Unable to detect processor type ('uname -m' == '$MACHINE')"
    exit 1
fi

#
# Detect OS and host
#
SYSTEM=`uname -s`

if echo $SYSTEM | grep -i sunos > /dev/null; then
    OS_NAME=sunos
    HOST_NAME=unix
elif echo $SYSTEM | grep -i linux > /dev/null; then
    OS_NAME=linux
    HOST_NAME=unix
elif echo $SYSTEM | grep -i mingw > /dev/null; then
    OS_NAME=win32
    HOST_NAME=mingw
elif echo $SYSTEM | grep -i cygwin > /dev/null; then
    OS_NAME=win32
    HOST_NAME=mingw
else
    echo "Unable to detect system type ('uname -s' == '$SYSTEM')"
    exit 1
fi

#
# Detect gcc
#
if gcc --version 2>&1 > /dev/null; then
    CC_NAME=gcc
else
    echo "Unable to find gcc"
    exit 1
fi

if test -f build.mak; then
  echo 'Saving build.mak --> build.mak.old'
  cp -f build.mak build.mak.old
fi

echo 'Writing build.mak as follows:'
echo " MACHINE_NAME=$MACHINE_NAME"
echo " OS_NAME=$OS_NAME"
echo " HOST_NAME=$HOST_NAME"
echo " CC_NAME=$CC_NAME"

echo "# Auto-generated build.mak" > build.mak
echo "export MACHINE_NAME := $MACHINE_NAME" >> build.mak
echo "export OS_NAME := $OS_NAME" >> build.mak
echo "export HOST_NAME := $HOST_NAME" >> build.mak
echo "export CC_NAME := $CC_NAME" >> build.mak
echo "Done."