academic/tilem2: Script cleanup

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackware-id.org>
Signed-off-by: Robby Workman <rworkman@slackbuilds.org>

academic/tilem2/tilem2.SlackBuild

@@ -24,16 +24,14 @@
 
 PRGNAM=tilem2
 SRCNAM=tilem
-VERSION=2.0
+VERSION=${VERSION:-2.0}
 BUILD=${BUILD:-1}
 TAG=${TAG:-_SBo}
 
-# Automatically determine the architecture we're building on:
 if [ -z "$ARCH" ]; then
    case "$( uname -m )" in
      i?86) ARCH=i486 ;;
      arm*) ARCH=arm ;;
-     # Unless $ARCH is already set, use uname -m for all other archs:
         *) ARCH=$( uname -m ) ;;
    esac
 fi
@@ -57,7 +55,7 @@ else
   LIBDIRSUFFIX=""
 fi
 
-set -e # Exit on most errors
+set -e
 
 rm -rf $PKG
 mkdir -p $TMP $PKG $OUTPUT
@@ -66,10 +64,11 @@ rm -rf $SRCNAM-$VERSION
 tar xvf $CWD/$SRCNAM-$VERSION.tar.bz2
 cd $SRCNAM-$VERSION
 chown -R root:root .
-find . \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
+find -L . \
+ \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
  -exec chmod 755 {} \; -o \
- \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
-  -exec chmod 644 {} \;
+ \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
+ -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
 # A few necessary patches
 # This adds -lm to the linker flags - comes from revision 661