re PR testsuite/45851 (FAIL: gcc.dg/lto/20090210 link test with WHOPR owing to…

re PR testsuite/45851 (FAIL: gcc.dg/lto/20090210 link test with WHOPR owing to bad -pthread option.)

	gcc/testsuite:
	PR testsuite/45851
	* lib/lto.exp (lto-get-options-main): Support optional target
	selector for dg-extra-ld-options.

	gcc:
	PR testsuite/45851
	* doc/sourcebuild.texi (LTO Testing, dg-extra-ld-options):
	Document optional target selector.

From-SVN: r165366

gcc/ChangeLog

+2010-10-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	PR testsuite/45851
+	* doc/sourcebuild.texi (LTO Testing, dg-extra-ld-options):
+	Document optional target selector.
+
 2010-10-12  Joseph Myers  <joseph@codesourcery.com>
 
 	* flag-types.h: New.

gcc/doc/sourcebuild.texi

@@ -2300,7 +2300,7 @@ This directive provides a list of one or more sets of compiler options
 to override @var{LTO_OPTIONS}.  Each test will be compiled and run with
 each of these sets of options.
 
-@item @{ dg-extra-ld-options @var{options} @}
+@item @{ dg-extra-ld-options @var{options} [@{ target @var{selector} @}]@}
 This directive adds @var{options} to the linker options used.
 
 @item @{ dg-suppress-ld-options @var{options} @}

gcc/testsuite/ChangeLog

 2010-10-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
+	PR testsuite/45851
+	* lib/lto.exp (lto-get-options-main): Support optional target
+	selector for dg-extra-ld-options.
+
+2010-10-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
 	* gcc.dg/pragma-init-fini.c: Skip on i?86-*-solaris2.8 && !gas.
 	* gcc.dg/pragma-init-fini-2.c: XFAIL on i?86-*-solaris2.8 && !gas.
 

gcc/testsuite/lib/lto.exp

@@ -277,8 +277,17 @@ proc lto-get-options-main { src } {
 		warning "lto.exp does not support dg-lto-do $dgdo"
 	    }
 	} elseif { ![string compare "dg-extra-ld-options" $cmd] } {
-	    set dg-extra-ld-options [lindex $op 2]
-	    verbose "dg-extra-ld-options for main is ${dg-extra-ld-options}"
+	    if { [llength $op] > 4 } {
+		error "[lindex $op 0]: too many arguments"
+	    } else {
+		if { [llength $op] == 3
+		     || ([llength $op] > 3
+			 && [dg-process-target [lindex $op 3]] == "S") } {
+		    set dg-extra-ld-options [lindex $op 2]
+		    verbose \
+			"dg-extra-ld-options for main is ${dg-extra-ld-options}"
+		}
+	    }
 	} elseif { ![string compare "dg-suppress-ld-options" $cmd] } {
 	    set dg-suppress-ld-options [lindex $op 2]
 	    verbose \