From 70e095024ab33404ba0cf20c184a7a9560bca5f0 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 18 Jan 2022 10:54:23 +0200
Subject: Add dynamic prerequisites to $< unless --adhoc is specified

Also add a few tests for depdb-dyndep.
---
 libbuild2/build/script/script.hxx | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

(limited to 'libbuild2/build/script/script.hxx')

diff --git a/libbuild2/build/script/script.hxx b/libbuild2/build/script/script.hxx
index 4e88785..0619253 100644
--- a/libbuild2/build/script/script.hxx
+++ b/libbuild2/build/script/script.hxx
@@ -94,6 +94,17 @@ namespace build2
                      bool temp_dir,
                      const optional<timestamp>& deadline = nullopt);
 
+        // (Re)set special $< and $> variables.
+        //
+        void
+        set_special_variables (action);
+
+        // Create the temporary directory (if it doesn't exist yet) and set
+        // the $~ special variable to its path.
+        //
+        void
+        set_temp_dir_variable ();
+
         environment (environment&&) = delete;
         environment (const environment&) = delete;
         environment& operator= (environment&&) = delete;
@@ -117,6 +128,9 @@ namespace build2
         variable_pool var_pool;
         variable_map vars;
 
+        const variable& var_ts; // $>
+        const variable& var_ps; // $<
+
         // Temporary directory for the script run.
         //
         // Currently this directory is removed regardless of the script
@@ -146,12 +160,6 @@ namespace build2
         //
         size_t exec_line = 1;
 
-        // Create the temporary directory (if it doesn't exist yet) and set
-        // the $~ special variable to its path.
-        //
-        void
-        set_temp_dir_variable ();
-
         virtual void
         set_variable (string&& name,
                       names&&,
-- 
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