Improve 1996/august/try.sh

Get CC defaulting to cc.

1996/august/try.sh

@@ -1,6 +1,20 @@
 #!/usr/bin/env bash
+#
+# try.sh - show IOCCC winner 1996/august
+#
+
+# 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
 
-make clobber all
 set -x
 cat august.c test.oc | ./august > test.oo
 ./august < test.oo
@@ -14,7 +28,12 @@ cat parse.oo fac.oc | ./august | ./august
 
 rm august.oc
 make august.oc
+
+# this next step is vital for some compilers! Not having it will make the
+# compiler create code that enters an infinite loop. This is known to happen in
+# macOS as one example.
 sed -i'' '/^#/d' august.oc
+
 cat august.c august.oc | ./august > august.oo
 cat august.oo test.oo | ./august
 cat august.oo august.oo fac.oo | ./august