#... snipped and copied relevant variables here ...
ARCH=i486
CPU=i686
INSTALLPREFIX=/opt
DOCFILES="$CWD/crafty.doc.ascii $CWD/tournament.howto"
PKGCFLAGS=" -Wall -pipe -D_REENTRANT -fbranch-probabilities -fforce-mem -fomit-frame-pointer -fno-gcse -mpreferred-stack-boundary=2"
SLKCFLAGS="-O3 -march=$ARCH -mtune=$CPU"
SLKCXXFLAGS="-O2 -march=$ARCH -mtune=$CPU"

#Make this thing.
   make \
     target=LINUX \
     CC="gcc" \
     CXX="g++" \
     CFLAGS="$SLKCFLAGS $PKGCFLAGS" \
     CXFLAGS="$SLKCXXFLAGS $PKGCXXFLAGS" \
     LDFLAGS="-lstdc++" \
     opt="-DFUTILITY  -DFAST  -DINLINE_ASM  -DEPD -DLOGDIR=\\\".\\\" -DBOOKDIR=\\\"${INSTALLPREFIX}/share/crafty/books\\\" -DRCDIR=\\\"${INSTALLPREFIX}/share/crafty/\\\" -DTBDIR=\\\"${INSTALLPREFIX}/share/crafty/TB\\\"" \
    crafty-make

mkdir -p $PKG/rootdir/${INSTALLPREFIX}/bin
mv crafty $PKG/rootdir/${INSTALLPREFIX}/bin
chmod 755 $PKG/rootdir/${INSTALLPREFIX}/bin/crafty
mkdir -p $PKG/rootdir/${INSTALLPREFIX}/share/crafty/TB
mv crafty.hlp $PKG/rootdir/${INSTALLPREFIX}/share/crafty
chmod 644 $PKG/rootdir/${INSTALLPREFIX}/bin/crafty/crafty.hlp


mkdir -p $PKG/rootdir/usr/bin
( cd $PKG/rootdir/usr/bin
 ln -s $INSTALLPREFIX/bin/crafty crafty
)

cat > $PKG/rootdir/usr/bin/xboard-crafty << __EOF__
#!/bin/bash
which xboard 1> /dev/null 2> /dev/null
if [ "\$?" -e "0" ]; then
   [ -x ${INSTALLPREFIX}/bin/crafty ] && xboard -firstChessProgram "${INSTALLPREFIX}/bin/crafty" -firstDirectory "${INSTALLPREFIX}/share/crafty
fi
__EOF__
chmod 755 $PKG/rootdir/${INSTALLPREFIX}/bin/xboard-crafty
mkdir -p $PKG/rootdir/${INSTALLPREFIX}/share/crafty/books
[ -r $CWD/book.bin ] && cp $CWD/book.bin $PKG/rootdir/${INSTALLPREFIX}/share/crafty/books/
[ -r $CWD/bookc.bin ] && cp $CWD/bookc.bin $PKG/rootdir/${INSTALLPREFIX}/share/crafty/books/
[ -r $CWD/books.bin ] && cp $CWD/books.bin $PKG/rootdir/${INSTALLPREFIX}/share/crafty/books/
mkdir -p $PKG/rootdir/usr/man/man6
[ -r $CWD/crafty.man ] && cp $CWD/crafty.man $PKG/rootdir/usr/man/man6/crafty.6

#... snip ... some other standard things follow (permissions, gzip man pages, and so on