Add feature: Support for parallel builds

1 files changed, 12 insertions, 0 deletions

diff --git a/build2/parallel-build b/build2/parallel-build
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+- Support for parallel builds [feature 0.5.0]
+
+Notes
+=====
+
+* Need to make sure we don't change build state (except for few controlled
+  things like target state and mtime) during update.
+
+  ~ Audit all uses of mutable.
+
+  ~ Can we pass things (e.g., target) as const to update. The only issue is
+    how to change state/mtime.