Improve 1992/nathan/try.sh

Allow one to specify CC=foo, defaulting to cc.

1992/nathan/try.sh

@@ -1,5 +1,17 @@
 #!/usr/bin/env bash
+#
+# 1992/nathan/try.sh - show IOCCC winner 1992/nathan
 
+# 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
 
 echo "$ ./nathan obfuscate < nathan.c > foobarf.c" 1>&2
 ./nathan obfuscate < nathan.c > foobarf.c