diff --git a/programs/make.sh b/programs/make.sh
index b0fdf6c..80fda17 100755
--- a/programs/make.sh
+++ b/programs/make.sh
@@ -1,5 +1,23 @@
-#!/bin/bash
+#!/bin/sh
 
-PROGRAM=testTerminal # change this to name of a program you want to compile :)
+# Make script for small3dlib programs.
+# by drummyfish
+# released under CC0 1.0, public domain
 
-clear; clear; g++ -x c -g -fmax-errors=5 -pedantic -O3 -Wall -Wextra -Wstrict-prototypes -Wold-style-definition -Wno-unused-parameter -Wno-missing-field-initializers -o $PROGRAM $PROGRAM.c -lSDL2 2>&1 >/dev/null && ./$PROGRAM
+if [ "$#" -ne 1 ]; then
+  echo "ERROR: expecting one argument, the name of program without extension (e.g. \"helloWorld\")"
+  exit 0
+fi
+
+link=""
+
+clear
+clear
+
+flags="-x c -g -O3 -std=c99 -pedantic -Wall -Wextra -o $1 $1.c -lSDL2"
+compiler=gcc
+#compiler=clang
+
+echo "making:" ${compiler} ${flags}
+
+${compiler} ${flags} && ./$1
diff --git a/small3dlib.h b/small3dlib.h
index fb3e446..a56337b 100644
--- a/small3dlib.h
+++ b/small3dlib.h
@@ -178,7 +178,7 @@
   #define S3L_SIN_METHOD 0
 #endif
 
-/** Units of measurement in 3D space. There is S3L_F in one
+/** Units of measurement in 3D space. There is S3L_FRACTIONS_PER_UNIT in one
 spatial unit. By dividing the unit into fractions we effectively achieve a
 fixed point arithmetic. The number of fractions is a constant that serves as
 1.0 in floating point arithmetic (normalization etc.). */
@@ -190,10 +190,10 @@ typedef
   int32_t 
 #endif
   S3L_Unit;
-    
-/** How many fractions a spatial unit is split into. This is NOT SUPPOSED TO
-BE REDEFINED, so rather don't do it (otherwise things may overflow etc.). */
-
+ 
+/** How many fractions a spatial unit is split into, i.e. this is the fixed
+point scaling. This is NOT SUPPOSED TO BE REDEFINED, so rather don't do it
+(otherwise things may overflow etc.). */
 #define S3L_FRACTIONS_PER_UNIT 512
 #define S3L_F S3L_FRACTIONS_PER_UNIT