[patch, testsuite], updated, refers PR42348

[Office Admin <admin-sal at btconnect dot com>]

> The problem reported in PR42348 revealed several underlying problems:
>
> 1/ that target supports are non-functional for ObjC/C++ when the  
> runtime flags are used (e.g. -fgnu-runtime).
> This is because those flags cause a warning from cc1 or cc1plus.
>
> This patch resolves this by changing the file suffix to .m or .mm  
> when the tool under test is ObjC or ObjC++ respectively.
>
> 2/ there is no support for detection of whether a target can support  
> OBJC2 or NeXT runtime.,
> The patch adds  support for detection of __OBJC2__ and next_runtime  
> which are needed if we are to tidy up the number of failing ObjC/C++  
> tests.
>
> 3/ The tests for the gnu-runtime library usage are failing in  
> testsuite/lib/objc.exp and obj-c++.exp.
> [they only detect if -fgnu-runtime is placed in the dg-options,  
> rather than also checking the multilib options].
>
> the patch modifies gcc/testsuite/lib/objc.exp and gcc/testsuite/lib/ 
> obj-c++.exp to detect the runtime in force after all the options are  
> processed.
>
> with these patches a more controlled skip-if can be applied [example  
> in the PR]
> (which should enable a lot of cleaning up of spurious fails for  
> darwin9/10).

updated with proper change-log and checked whitespace in exps.
Iain

gcc/testsuite/Changelog:

2009-12-17 Iain Sandoe <iain.sandoe@sandoe-acoustics.co.uk>

	PR testsuite/42348

	* lib/target-supports.exp: Add support for ObjC/ObjC++ tools in
	standard tests, (check_effective_target_objc2) New proc.
	(check_effective_target_next_runtime) New proc.
	* lib/objc.exp: Walk through the gnu/next runtime flags to determine  
which
	is actually in force, attach the appropriate includes accordingly.
	* lib/obj-c++.exp: Ditto.

Attachment: objc-target-supports-update-pr42348.txt
Description: Text document