Add a "dyndep" reserved binding to the manifest format

Allow rules or build statements to specify one of the build statement
inputs in a "dyndep" binding.  This will later be used to load
dependency information from the specified file.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/graph.cc b/src/graph.cc
index bf9363d..2fbce84 100644
--- a/src/graph.cc
+++ b/src/graph.cc
@@ -387,6 +387,11 @@ string Edge::GetUnescapedDepfile() {
   return env.LookupVariable("depfile");
 }
 
+string Edge::GetUnescapedDyndep() {
+  EdgeEnv env(this, EdgeEnv::kDoNotEscape);
+  return env.LookupVariable("dyndep");
+}
+
 string Edge::GetUnescapedRspfile() {
   EdgeEnv env(this, EdgeEnv::kDoNotEscape);
   return env.LookupVariable("rspfile");