From 0d2b592f08b456452eb3384f38a907b1074cb8df Mon Sep 17 00:00:00 2001
From: Neale Pickett <neale@woozle.org>
Date: Tue, 15 May 2018 20:43:47 +0000
Subject: [PATCH] Compile with older compilers

---
 entropy.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/entropy.c b/entropy.c
index 7b0244e..fb45c9c 100644
--- a/entropy.c
+++ b/entropy.c
@@ -7,6 +7,7 @@ main(int argc, char *argv[])
 	size_t len = 0;
 	size_t hist[256] = {0};
 	int c;
+    int i;
 
 	while ((c = getchar()) != EOF) {
 		hist[c] += 1;
@@ -14,7 +15,7 @@ main(int argc, char *argv[])
 	}
 
 	float H = 0;
-	for (int i = 0; i < 256; i += 1) {
+	for (i = 0; i < 256; i += 1) {
 		if (hist[i]) {
 			float Hi = (float)hist[i]/len;
 			H -= Hi * log2(Hi);