From 121732b4b646962f200946d90c4dc8317bda2133 Mon Sep 17 00:00:00 2001
From: Vladimir Prus <ghost@cs.msu.su>
Date: Wed, 9 Jun 2010 07:12:59 +0000
Subject: [PATCH] When no target is requested to be built via UPDATE, return
 status of last UPDATE_NOW.

[SVN r62635]
---
 historic/jam/src/builtins.c | 3 +++
 historic/jam/src/builtins.h | 1 +
 historic/jam/src/jam.c      | 4 ++++
 3 files changed, 8 insertions(+)

diff --git a/historic/jam/src/builtins.c b/historic/jam/src/builtins.c
index 4f94edc3a..83bb1a2c4 100644
--- a/historic/jam/src/builtins.c
+++ b/historic/jam/src/builtins.c
@@ -1293,6 +1293,7 @@ LIST * builtin_update( PARSE * parse, FRAME * frame )
 }
 
 extern int anyhow;
+int last_update_now_status;
 
 /* Takes a list of target names as first argument, and immediately
    updates them.
@@ -1355,6 +1356,8 @@ LIST * builtin_update_now( PARSE * parse, FRAME * frame )
         close (original_stdout);
         close (original_stderr);
     }
+
+    last_update_now_status = status;
 	
     if (status == 0)
         return list_new (L0, newstr ("ok"));
diff --git a/historic/jam/src/builtins.h b/historic/jam/src/builtins.h
index 1edaab738..8ecc6616a 100644
--- a/historic/jam/src/builtins.h
+++ b/historic/jam/src/builtins.h
@@ -62,5 +62,6 @@ LIST *builtin_pad( PARSE *parse, FRAME *frame );
 LIST *builtin_precious( PARSE *parse, FRAME *frame );
 
 void backtrace( FRAME *frame );
+extern int last_update_now_status;
 
 #endif
diff --git a/historic/jam/src/jam.c b/historic/jam/src/jam.c
index b10974e08..2d06316e6 100644
--- a/historic/jam/src/jam.c
+++ b/historic/jam/src/jam.c
@@ -529,6 +529,10 @@ int main( int argc, char * * argv, char * * arg_environ )
                 status |= make( targets_count, targets2, anyhow );
                 free( targets );
             }
+            else
+            {
+                status = last_update_now_status;
+            }
 
             PROFILE_EXIT( MAIN_MAKE );
         }