libraries/rrdtool: Miscellaneous script cleanup.

Signed-off-by: Robby Workman <rworkman@slackbuilds.org>

libraries/rrdtool/README

@@ -1,4 +1,3 @@
 RRDTool is the industry standard data logging and graphing application.
 
 This package makes all bindings that are supported on the system.
-

libraries/rrdtool/rrdtool.SlackBuild

@@ -7,17 +7,23 @@
 # Versions >= 1.4.2 maintained by Niels Horn <niels.horn@gmail.com>
 # revision date: 2010/03/31
 
-set -e
-
 PRGNAM=rrdtool
 VERSION=1.4.3
-ARCH=${ARCH:-i486}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i486 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
 PYTHON=$( python -c 'import sys; print sys.version[:3]' )
-PERL=$( eval "`perl -V:version`"; echo $version )
-CWD=`pwd`
+PERL=$( eval "$(perl -V:version)"; echo $version )
+
+CWD=$(pwd)
 TMP=${TMP:-/tmp/SBo}
 PKG=$TMP/package-$PRGNAM
 OUTPUT=${OUTPUT:-/tmp}
@@ -38,13 +44,19 @@ elif [ "$ARCH" = "arm" ]; then
   SLKCFLAGS="-O2 -march=armv4t"
   LIBDIRSUFFIX=""
   ARCHQUADLET="-gnueabi"
+else
+  SLKCFLAGS="-O2"
+  LIBDIRSUFFIX=""
+  ARCHQUADLET=""
 fi
 
+set -e
+
 rm -rf $PKG
 mkdir -p $TMP $PKG $OUTPUT
 cd $TMP
 rm -rf $PRGNAM-$VERSION
-tar xvzf $CWD/$PRGNAM-$VERSION.tar.gz
+tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
 cd $TMP/$PRGNAM-$VERSION
 chown -R root:root .
 chmod -R a-s,u+w,go+r-w .
@@ -71,30 +83,23 @@ make install DESTDIR=$PKG
 find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
   | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
 
-( 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
-)
+find $PKG/usr/man -type f -exec gzip -9 {} \;
+for i in $(find $PKG/usr/man -type l) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done
 
 # Remove perllocal.pod and other special files that don't need to be installed,
 # as they will overwrite what's already on the system.
-( cd $PKG
-  # Remove 'special' files
-  find . -name perllocal.pod \
+find $PKG -name perllocal.pod \
   -o -name ".packlist" \
   -o -name "*.bs" \
   | xargs rm -f
-)
 
 # And remove the directory leftovers
 rm -rf $PKG/usr/lib${LIBDIRSUFFIX}/perl5/${PERL}
 rm -rf $PKG/usr/lib${LIBDIRSUFFIX}/perl5/site_perl/${PERL}/$ARCH-linux/auto/RRDp
 
 # Set correct permissions (mostly on the Perl bindings)
-( cd $PKG
-  find . -perm 444 -exec chmod 0644 {} \;
-  find . -perm 555 -exec chmod 0755 {} \;
-)
+find $PKG -perm 444 -exec chmod 0644 {} \;
+find $PKG -perm 555 -exec chmod 0755 {} \;
 
 mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
 cp -a CHANGES CONTRIBUTORS COPYING COPYRIGHT NEWS README THREADS TODO \