can however be changed at any time by passing a new value, and can be
removed by passing an empty value.
-*Note:* the +BR2_EXTERNAL+ path can be either an absolute or a relative path,
+.Note
+The +BR2_EXTERNAL+ path can be either an absolute or a relative path,
but if it's passed as a relative path, it is important to note that it
is interpreted relative to the main Buildroot source directory, *not*
to the Buildroot output directory.
logic. Buildroot automatically includes +$(BR2_EXTERNAL)/Config.in+ to
make it appear in the top-level configuration menu, and includes
+$(BR2_EXTERNAL)/external.mk+ with the rest of the makefile logic.
- Providing those two files is mandatory, but they can be empty.
++
+.Note
+Providing +Config.in+ and +external.mk+ is mandatory, but they can be
+ empty.
+
The main usage of this is to store package recipes. The recommended
way to do this is to write a +$(BR2_EXTERNAL)/Config.in+ file that