From e128fa1a8ef24441602b98cc87d52ac6bb87f4c5 Mon Sep 17 00:00:00 2001
From: axel <axel@liljencrantz.se>
Date: Sun, 25 Mar 2007 08:34:30 +1000
Subject: [PATCH] Fix a bug where io redirection of builtins would not truncate
 files if the builtin did not produce any output

darcs-hash:20070324223430-ac50b-3f3d6fd35f5b82c59ecaa06b459fe2b61dc8f387.gz
---
 exec.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/exec.c b/exec.c
index 569332005..9b0e1cc6c 100644
--- a/exec.c
+++ b/exec.c
@@ -1316,6 +1316,8 @@ void exec( job_t *j )
 					( !sb_out->used ) &&
 					( !sb_err->used ) &&
 					( !p->next );
+	
+				int has_file_redirect = 0;
 				
 				/*
 				  If the output of a builtin is to be sent to an internal
@@ -1337,6 +1339,14 @@ void exec( job_t *j )
 					free( res );				
 				}
 
+				for( io = j->io; io; io=io->next )
+				{
+					if( io->io_mode == IO_FILE )
+					{
+						skip_fork = 0;
+					}
+				}
+				
 				if( skip_fork )
 				{
 					p->completed=1;