+9. OUTPUTDIR may be set to the name of the directory where you want all the
+ object files to be generated (the library files are always created in
+ %WXWIN%\lib). Compilation will fail if you set it to an empty string
+ to create them in the same directory as the source. If you change OUTPUTDIR,
+ make sure that it does not have a trailing backslash!
+ In the samples, you may use EXEDIR=adir to build the samples in adir. Setting
+ EXEDIR=. will build in the current directory,
+