-You need libfdk-aac, GNU autoconf and automake, and C compiler.
-On Posix environment, you will also need GNU gettext (for iconv.m4).
+You need libfdk-aac.
+On Posix environment, you will also need GNU gettext (for iconv.m4) and
+GNU autoconf/automake.
+
+How to build on Posix environment
+---------------------------------
+First, you need to build libfdk-aac and install on your system.
+Once you have done it, the following will do the task.
+(MinGW build can be done the same way, and doesn't require gettext/iconv)