#!/bin/sh

ARCH=`uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ -e s/arm.*/arm/ -e s/sa110/arm/`

if test ! -f patch-int-2.4.3.1 ; then
  if test ! -f patch-int-2.4.3.1.gz ; then
    if ! (wget http://www.kernel.org/pub/linux/kernel/crypto/v2.4/patch-int-2.4.3.1.gz) ; then
      echo "=> failed to get patch file." >&2
      echo "   get it manually and come back" >&2
      echo "   wget http://www.kernel.org/pub/linux/kernel/crypto/v2.4/patch-int-2.4.3.1.gz" >&2
      exit 1
    fi
  fi
  if test ! -f patch-int-2.4.3.1.gz ; then
    echo "no patch-int-2.4.3.1.gz found" >&2
  fi
  if ! (gunzip patch-int-2.4.3.1.gz) ; then
    echo "=> failed to unzip patch-int-2.4.3.1.gz." >&2
    echo "   get the gz and uncompress it manually..." >&2
    echo "   wget http://www.kernel.org/pub/linux/kernel/crypto/v2.4/patch-int-2.4.3.1.gz" >&2
    exit 1
  fi
fi

if test ! -f patch-int-2.4.3.1 ; then
  echo "=> patch-int-2.4.3.1 is not present." >&2
  echo "   get it manually, and uncompress it" >&2
  echo "   wget http://www.kernel.org/pub/linux/kernel/crypto/v2.4/patch-int-2.4.3.1.gz" >&2
  exit 1
fi

# this may fail so do not bother with status...
patch -f -p1 < patch-int-2.4.3.1

# restore real makefile...
cp -f Makefile-real Makefile

# now make the asm link
(cd include ; ln -fs asm-${ARCH} asm)

# and finally compile
make