Improve 1996/schweikh2/try.sh

Get CC, defaulting to cc.

1996/schweikh2/try.sh

@@ -1,7 +1,19 @@
 #!/usr/bin/env bash
+#
+# try.sh - show IOCCC winner 1996/schweikh2
+#
 
-make all >/dev/null || exit 1
+# make sure CC is set so that when we do make CC="$CC" it isn't empty. Doing it
+# this way allows us to have the user specify a different compiler in an easy
+# way.
+if [[ -z "$CC" ]]; then
+    CC="cc"
+fi
 
+make CC="$CC" all >/dev/null || exit 1
+
+# clear screen after compilation so that only the entry is shown
+clear
 
 read -r -n 1 -p "Press any key to to run ./schweikh2: " 1>&2
 ./schweikh2