diff --git a/bin/warning b/bin/warning
new file mode 100755
index 0000000..f120f39
Binary files /dev/null and b/bin/warning differ
diff --git a/compile-all.sh b/compile-all.sh
index a87e883..7a61f4a 100755
--- a/compile-all.sh
+++ b/compile-all.sh
@@ -10,4 +10,12 @@ do
         returnCode=1;
     fi
 done
+echo -ne "\nfinished compiling all source files. ";
+if [ "$returnCode" -eq 0 ]
+then
+    echo -ne "No errors occured.";
+else
+    echo -ne "Some errors occured.";
+fi
+echo "";
 exit $returnCode
diff --git a/compile-and-run.sh b/compile-and-run.sh
index ccd5cea..2b5dd18 100755
--- a/compile-and-run.sh
+++ b/compile-and-run.sh
@@ -1,4 +1,4 @@
 #!/bin/bash
 noext=$(echo "$1" | cut -f 1 -d '.')
-./compile $1
+./compile.sh $1
 ./bin/$noext $2 $3 $4 $5 $6 $7 $8 $9
diff --git a/compile.sh b/compile.sh
index cfad674..688a322 100755
--- a/compile.sh
+++ b/compile.sh
@@ -1,4 +1,8 @@
 #!/bin/bash
 echo "compiling $1 ..."
 noext=$(echo "$1" | cut -f 1 -d '.')
+
+# to treat warnings as errors, use the following line
+#gcc $1 -o bin/$noext -lm -Werror=format
+#
 gcc $1 -o bin/$noext -lm
diff --git a/huffman/README.md b/huffman/README.md
index 3b5f5b2..0d0b8c5 100644
--- a/huffman/README.md
+++ b/huffman/README.md
@@ -1,11 +1,9 @@
 # Huffman
 the testfiles folder is unpopulated and not staged through gitignore, as it might contain large files.
-use the following command to populate it or create your own testfiles.
+Use the following command to populate it or create your own testfiles.
 
 ``dd if=/dev/urandom of=10K-random.img count=1K``
-
 ``dd if=/dev/urandom of=10K-random.img count=1M``
-
 ...
 
 files with random bytes wont be able to be compressed byy much, that is normal.
diff --git a/warning.c b/warning.c
new file mode 100644
index 0000000..99d58c1
--- /dev/null
+++ b/warning.c
@@ -0,0 +1,9 @@
+#include <stdio.h>
+
+int main(){
+    char s[2];
+    // produce warning, char* s is too small for the following fgets instruction
+    fgets(s, 10, stdin);
+    printf("%s\n",s);
+    return 0;
+}