development/crystal-lang: Fix ARCH detection.

Signed-off-by: Andrew Clemons <andrew.clemons@gmail.com>

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

development/crystal-lang/crystal-lang.SlackBuild

@@ -50,18 +50,15 @@ TMP=${TMP:-/tmp/SBo}
 PKG=$TMP/package-$PRGNAM
 OUTPUT=${OUTPUT:-/tmp}
 
-if [ "$ARCH" = "i486" ]; then
-  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
-  LIBDIRSUFFIX=""
-elif [ "$ARCH" = "i686" ]; then
+if [ "$ARCH" = "i686" ]; then
   SLKCFLAGS="-O2 -march=i686 -mtune=i686"
   LIBDIRSUFFIX=""
 elif [ "$ARCH" = "x86_64" ]; then
   SLKCFLAGS="-O2 -fPIC"
   LIBDIRSUFFIX="64"
 else
-  SLKCFLAGS="-O2"
-  LIBDIRSUFFIX=""
+  echo "$ARCH is unsupported."
+  exit 1
 fi
 
 set -e