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====== Slackware Buildscript Template ======

This is my version of a Slack Buildscript. I tried to separete the boilerplate code which stays the same in most buildscripts from the part which is really specific to the actual package. 

This script is based on the very good [[http://www.slackwiki.org/Writing_A_SlackBuild_Script|howto]] from rworkman. Howto use a buildscript for Slackware is described [[http://slackbuilds.org/howto/|here]].

<code bash>
#!/bin/sh
# Slackware build script for <appname>
# Written by Stefan Beckert (becki AT web DOT de)

# ==== PACKAGE CONFIGURATION ====

APP='<appname>'
VERSION='0.0.0' # The dash character ("-") is not allowed
EXT='tar.gz'    # Extension of source tarball: tar.gz, tgz, tar.bz2, tbz
MAKEINSTALL='install-strip' # make target: install or install-strip

# Flags for ./configure:
CONFIGFLAGS="\
 --prefix=/usr \
 --sysconfdir=/etc \
 --localstatedir=/var\
 --mandir=/usr/man\
"

# Provide a function wich copies the necessary docs to the doc directory:
# pwd is the sourcecode dir when this function is called
function copydocs() {
    cp -a BUGS Changes FAQ INSTALL LICENSE MANIFEST README TODO docs/ $PKG/usr/doc/$APP-$VERSION
    # alternatively, if make install has already created 
    # a doc dir somwhere in the package tree:
    #mv $PKG/usr/share/$APP/docs/* $PKG/usr/doc/$APP-$VERSION
    #rmdir $PKG/usr/share/$APP/docs/
}


# ==== PACKAGE INDEPENDENT STUFF ====

ARCH=${ARCH:-i486}      # respcets possibly existing environment variable
BUILD=${BUILD:-1}       # - " -
TAG=${TAG:-_SBo}        # - " -
TMP=${TMP:-/tmp/SBo}    # - " -
CWD=$(pwd)
PKG=$TMP/package-$APP   # directory structure of package will be created here

# set compiler flags: (http://linuxreviews.org/howtos/compiling/)
if [ "$ARCH" = "i386" ] || [ "$ARCH" = "i486" ] || [ "$ARCH" = "i686" ]; then
    SLKCFLAGS="-O2 -march=$ARCH -mtune=i686"
elif [ "$ARCH" = "x86_64" ]; then
    SLKCFLAGS="-O2 -fPIC"
else
    echo "Error: ARCH $ARCH is not supported!"; exit 1
fi

# get proper extract command:
if [ "$EXT" = 'tgz' ] || [ "$EXT" = 'tar.gz' ]; then
    TAROPTS='xzf'
elif [ "$EXT" = 'tbz' ] || [ "$EXT" = 'tar.bz2' ]; then
    TAROPTS='xjf'
else
    echo "Error: Package format $EXT is not supported!"; exit 1
fi

# cleanup & prepare:
rm -rf $PKG               # remove old package structure
rm -rf $TMP/$APP-$VERSION # remove old source directory
if [ ! -d $TMP ]; then mkdir -p $TMP; fi
mkdir -p $PKG

# extract source:
cd $TMP || exit 1
tar -$TAROPTS $CWD/$APP-$VERSION.$EXT || exit 1 # Extract source in TMP
cd $APP-$VERSION || exit 1
chown -R root:root .
chmod -R u+w,go+r-w,a-s .

# run configure script:
CFLAGS="$SLKCFLAGS" CXXFLAGS="$SLKCFLAGS" ./configure $CONFIGFLAGS || exit 1

# compile the source:
make || exit 1

# Install everything into the package directory:
make $MAKEINSTALL DESTDIR=$PKG || exit 1

# copy docs:
mkdir -p $PKG/usr/doc/$APP-$VERSION
copydocs # package specific function
find $PKG/usr/doc/$APP-$VERSION -type f -exec chmod 644 {} \;

# fill slack install directory:
mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
if [ -e $CWD/doinst.sh ]; then
    cat $CWD/doinst.sh > $PKG/install/doinst.sh
fi

# Compress man pages if they exist
if [ -d $PKG/usr/man ]; then
  ( cd $PKG/usr/man
  find . -type f -exec gzip -9 {} \;
  for i in $(find . -type l) ; do ln -s $(readlink $i).gz $i.gz ; rm $i ; done
  )
fi

# Compress info pages if they exist (and remove the dir file)
if [ -d $PKG/usr/info ]; then
  gzip -9 $PKG/usr/info/*.info
  rm -f $PKG/usr/info/dir
fi

# Build the Package:
cd $PKG
/sbin/makepkg -l y -c n $TMP/$APP-$VERSION-$ARCH-$BUILD$TAG.tgz
</code>
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