Mine

#!/bin/sh
# Copyright 2007 Andreas Schnaiter


PKGNAM=boost
VERSION=${VERSION:-1_34_1}
ARCH=${ARCH:-i486}
BUILD=${BUILD:-1as}


CWD=`pwd`
if [ "$TMP" = "" ]; then
  TMP=/tmp
fi
PKG=$TMP/package-${PKGNAM}
rm -rf $PKG
mkdir -p $PKG

if [ "$ARCH" = "i386" ]; then
  SLKCFLAGS="-O2 -march=i386 -mcpu=i686"
elif [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2"
fi

cd $TMP
rm -rf ${PKGNAM}_${VERSION}
tar xvjf $CWD/${PKGNAM}_$VERSION.tar.bz2 || exit 1
cd ${PKGNAM}_$VERSION || exit 1

# Make sure ownerships and permissions are sane:
chown -R root:root .
find . -perm 666 -exec chmod 644 {} \;
find . -perm 664 -exec chmod 644 {} \;
find . -perm 600 -exec chmod 644 {} \;
find . -perm 444 -exec chmod 644 {} \;
find . -perm 400 -exec chmod 644 {} \;
find . -perm 440 -exec chmod 644 {} \;
find . -perm 777 -exec chmod 755 {} \;
find . -perm 775 -exec chmod 755 {} \;
find . -perm 511 -exec chmod 755 {} \;
find . -perm 711 -exec chmod 755 {} \;
find . -perm 555 -exec chmod 755 {} \;

# Configure:
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=$PKG/usr

# Build and install:
make -j4 || exit 1
#exit 0
make install|| exit 1

# Strip binaries:
( cd $PKG
  find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
  find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
  find . | xargs file | grep "current ar archive" | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
)

( cd $PKG/usr/include
  ln -s ./$PKGNAM-$VERSION/$PKGNAM $PKGNAM
)

( cd $PKG/usr/lib
	find -name '*.so'|while read lib; do ln -s "$lib" `echo "$lib"|sed "s/-gcc41//g"`; done
)

# Compress and link manpages, if any:
if [ -d $PKG/usr/man ]; then
  ( cd $PKG/usr/man
    for manpagedir in $(find . -type d -name "man*") ; do
      ( cd $manpagedir
        for eachpage in $( find . -type l -maxdepth 1) ; do
          ln -s $( readlink $eachpage ).gz $eachpage.gz
          rm $eachpage
        done
        gzip -9 *.?
      )
    done
  )
fi

# Add a documentation directory:
mkdir -p $PKG/usr/doc/${PKGNAM}-$VERSION
cp -a \
  COPYING README \
  $PKG/usr/doc/${PKGNAM}-$VERSION

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat << EOF > $PKG/install/doinst.sh
EOF

cd $TMP/package-${PKGNAM}
makepkg -l y -c n ../${PKGNAM}-$VERSION-$ARCH-$BUILD.tgz

cd $TMP
rm -rf $TMP/${PKGNAM}_$VERSION
rm -rf $TMP/package-${PKGNAM}


upgradepkg --install-new ${PKGNAM}-$VERSION-$ARCH-$BUILD.tgz