From 3b7ddbabc0e534f7766ecb77ef1da661a7f6ee33 Mon Sep 17 00:00:00 2001 From: Gustavo Jose de Sousa Date: Tue, 14 Jun 2016 15:18:10 -0300 Subject: [PATCH] waf: readme: clarify explanation on program groups The necessity for that was pointed out in the PR #3841 ("waf: readme: update information regarding groups" - https://github.com/ArduPilot/ardupilot/pull/3841). --- BUILD.md | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/BUILD.md b/BUILD.md index e914b30185..33c4937e91 100644 --- a/BUILD.md +++ b/BUILD.md @@ -63,8 +63,10 @@ waf list ## Program groups ## Program groups are used to represent a class of programs. They can be used to -build all programs of a certain class without having to specify each program. A -program can belong to more than one group. +build all programs of a certain class without having to specify each program. +It's possible for two groups to overlap, except when both groups are main +groups. In other words, a program can belong to more than one group, but only +to one main group. There's a special group, called "all", that comprises all programs.