V3 PATCH: Compile testsuite support objects with -w

[Mark Mitchell <mark at codesourcery dot com>]

On AIX, compiling testsuite_abi.cc results in warnings, which causes
DeajGNU to treat the compilation as having failed.  (DejaGNU doesn't
rely on exit codes because they're not always available.)

Tested on x86_64-unknown-linux-gnu, by observing that "-w" is added to
the compilation line, and that the tests still run.

(A note: Tcl is not a typeful language, but there's no reason not to
take advantage of the facilities it provides.  I see a lot of places
where people are confusing strings and lists, and that works most --
but not all -- of the time.  The right way to make a list is with the
"list" builtin.)

I intend to apply this within 24 hours, assuming no objections.
However, I'd appreciate an explicit approval so that we can get
people back in business sooner.

--
Mark Mitchell
CodeSourcery, LLC
mark@codesourcery.com

2005-03-25  Mark Mitchell  <mark@codesourcery.com>

	* testsuite/lib/libstdc++.exp (v3-build_support): Pass -w when
	compiling support objects.

Index: libstdc++.exp
===================================================================
RCS file: /cvs/gcc/gcc/libstdc++-v3/testsuite/lib/libstdc++.exp,v
retrieving revision 1.34
diff -c -5 -p -r1.34 libstdc++.exp
*** libstdc++.exp	23 Mar 2005 21:46:05 -0000	1.34
--- libstdc++.exp	25 Mar 2005 16:39:29 -0000
*************** proc v3-build_support {} {
*** 320,331 ****
      # Build the support objects.
      set source_files \
  	[list testsuite_abi.cc testsuite_allocator.cc testsuite_hooks.cc]
      foreach f $source_files {
  	set object_file [file rootname $f].o
  	if { [v3_target_compile $srcdir/$f $object_file "object" \
!                "incdir=$srcdir"] 
  	     != "" } {
  	    error "could not compile $f"
  	}
  	append v3-test_objs "$object_file "
      }
--- 320,333 ----
      # Build the support objects.
      set source_files \
  	[list testsuite_abi.cc testsuite_allocator.cc testsuite_hooks.cc]
      foreach f $source_files {
  	set object_file [file rootname $f].o
+ 	# Compile with "-w" so that warnings issued by the compiler
+ 	# do not prevent compilation.
  	if { [v3_target_compile $srcdir/$f $object_file "object" \
! 		  [list "incdir=$srcdir" "additional_flags=-w"]]
  	     != "" } {
  	    error "could not compile $f"
  	}
  	append v3-test_objs "$object_file "
      }