diff --git a/src/build.sh b/src/build.sh
index c68c94e..e31ef9c 100755
--- a/src/build.sh
+++ b/src/build.sh
@@ -1,4 +1,10 @@
 #!/bin/sh
+#
+# The big unifying build script, which builds all binaries it can on a
+# given platform.
+#
+# Effectively, if this script is run both on Darwin and Linux systems,
+# all binaries can be constructed.
 
 PLATFORM=`uname`
 echo $PLATFORM