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-rw-r--r--libbuild2/context.cxx12
1 files changed, 12 insertions, 0 deletions
diff --git a/libbuild2/context.cxx b/libbuild2/context.cxx
index b7cfa42..d78efba 100644
--- a/libbuild2/context.cxx
+++ b/libbuild2/context.cxx
@@ -141,6 +141,18 @@ namespace build2
v = move (val);
};
+ // Build system mode.
+ //
+ // This value signals any special mode the build system may be running
+ // in. The two core modes are `no-external-modules` (bootstrapping of
+ // external modules is disabled) and `normal` (normal build system
+ // execution). Build system drivers may invent additional modes (for
+ // example, the bpkg `skeleton` mode that is used to evaluate depends
+ // clauses).
+ //
+ set ("build.mode",
+ no_external_modules ? "no-external-modules" : "normal");
+
set ("build.work", work);
set ("build.home", home);