gcc-defs.exp (dg-additional-files-options): Extend regsub for…

gcc-defs.exp (dg-additional-files-options): Extend regsub for dg-additional-files to also match BOL.

2013-11-06  James Lemke  <jwlemke@codesourcery.com>

	* lib/gcc-defs.exp (dg-additional-files-options): Extend regsub for
	dg-additional-files to also match BOL.

From-SVN: r204462

gcc/testsuite/ChangeLog

+2013-11-06  James Lemke  <jwlemke@codesourcery.com>
+
+	* lib/gcc-defs.exp (dg-additional-files-options): Extend regsub for
+	dg-additional-files to also match BOL.
+
 2013-11-06  Joseph Myers  <joseph@codesourcery.com>
 
 	* gcc.dg/torture/c99-contract-1.c: New test.

gcc/testsuite/lib/gcc-defs.exp

@@ -245,7 +245,7 @@ proc dg-additional-files-options { options source } {
 	set additional_sources ""
     }
     if { $additional_files != "" } then { 
-	regsub -all " " $additional_files " [file dirname $source]/" additional_files
+	regsub -all "^| " $additional_files " [file dirname $source]/" additional_files
 	set to_download [concat $to_download $additional_files]
 	set additional_files ""
     }