Explain where to get expat.

diff --git a/gpsbabel/README b/gpsbabel/README
index 76c0cd0b186d3802554c84db96c5f4850c597dff..5ce18ef52c9aa2fbc6aeb3a88bce360a94a2b11e 100644 (file)
--- a/gpsbabel/README
+++ b/gpsbabel/README
@@ -16,6 +16,18 @@ THE SOLUTION
        so far have taken under 200 lines of reasonable ISO C so they can
        be stamped out pretty trivially. 
 
+BUILDING IT
+       
+       The code should be compilable on any system with ISO C89 compilers.
+       It's been tested on UnixWare, OpenServer, OS/X, Linux, Solaris, and
+       a variety of processors and compilers.
+       
+       Libexpat is required.   If you get errors about expat.h being
+       missing, you must either edit the Makefile to tell the compiler
+       where it is or install it in a sensible place.   Exapt can be 
+       downloaded from http://expat.sourceforge.net and is part of Apache
+       so it's very portable.
+
 THE FORMATS
 
     GPX