You can override the default extensions that Geany uses
				for each filetype using the filetype_extensions.conf file.
			
				To override the system-wide configuration file,
				copy it from $prefix/share/geany to your
				configuration directory, usually ~/.geany/.
				$prefix is the path where
				Geany is	installed (commonly
				/usr/local).
			
For example:
%cp /usr/local/share/geany/filetype_extensions.conf /home/username/.geany/
				Then edit it and remove all the lines for filetype extensions that you
				do not want to override. The remaining lines can be edited after the
				= sign, using a semi-colon separated list of patterns
				which should be matched for that filetype.
			
				For example, to set the filetype extensions for Make, the
				/home/username/.geany/filetype_extensions.conf
				file should look like:
				
						[Extensions]
						Make=Makefile*;*.mk;Buildfile;