[Bug target/114049] gcc.dg/framework-1.c FAILs with Xcode 15.3 beta 3

["iains at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114049

--- Comment #6 from Iain Sandoe <iains at gcc dot gnu.org> ---
I'm still finding this a bit confusing.

- we have not altered the code in this area (at least not the Darwin parts)
during the gcc-14 cycle.

- apparently, it works with previous Xcode versions/SDKs

- from your comment #2 

"$ clang /vol/gcc/src/hg/master/darwin/gcc/testsuite/gcc.dg/framework-1.c -F.
-S -o framework-1.s 
In file included from
/vol/gcc/src/hg/master/darwin/gcc/testsuite/gcc.dg/framework-1.c:4:
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Kernel.framework/Headers/string.h:55:10:
error: 'machine/trap.h' file not found with <angled> include; use "quotes"
instead
#include <machine/trap.h>
"

that seems to be an error, not a warning (even if it diagnoses better than we
do).

- even if it tries to fall back to the "" version, that still should not find
the header according to the information in comment #5 - since we so not add any
paths below Library/Frameworks .. so 'machine' is only a top level include
directory in /usr/include (and it does not contain trap.h).