academic/karma: Allow ARCH=i586 in environment.

Signed-off-by: B. Watson <yalhcru@gmail.com>

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

academic/karma/karma.SlackBuild

@@ -22,6 +22,8 @@
 #  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 #  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+# 20220318 bkw: Modified by SlackBuilds.org: fix build when ARCH is
+# set to i586 in the environment.
 
 cd $(dirname $0) ; CWD=$(pwd)
 
@@ -39,9 +41,6 @@ if [ -z "$ARCH" ]; then
   esac
 fi
 
-# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
-# the name of the created package would be, and then exit. This information
-# could be useful to other scripts.
 if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
   echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
   exit 0
@@ -53,14 +52,11 @@ OUTPUT=${OUTPUT:-/tmp}
 
 set -e
 
-if [ "$ARCH" = "x86_64" ]; then
-  ARCHDEP="amd64_Linux_libc6.3"
-elif [ "$ARCH" = "i686" ]; then
-  ARCHDEP="i386_Linux_libc6"
-else
-  printf "\n\n$ARCH is not supported... \n"
-  exit 1
-fi
+case "$ARCH" in
+  x86_64) ARCHDEP="amd64_Linux_libc6.3" ;;
+  i?86)   ARCHDEP="i386_Linux_libc6"    ;;
+  *)      printf "\n\n$ARCH is not supported... \n"; exit 1 ;;
+esac
 
 rm -rf $PKG
 mkdir -p $TMP $PKG $OUTPUT
@@ -79,10 +75,9 @@ rm -R $ARCHDEP
 chown -R root:root .
 find -L . \
  \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
-  -o -perm 511 \) -exec chmod 755 {} \; -o \
+  -o -perm 511 \) -exec chmod 755 {} \+ -o \
  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
-  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
-
+  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \+
 
 # Copy everything to package directory
 mkdir -p $PKG/opt/$PRGNAM