[Bug 281257] base llvm csetjmp C++ header file now generates an error

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=281257

            Bug ID: 281257
           Summary: base llvm csetjmp C++ header file now generates an
                    error
           Product: Base System
           Version: 14.1-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: misc
          Assignee: bugs@FreeBSD.org
          Reporter: bobf@mrp3.com
 Attachment #253310 text/plain
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Created attachment 253310
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=253310&action=edit
shar file for graphics/xaos containing patch

In 2 cases I have attempted to build ports using the latest llvm compiler that
comes with 14.1 RELEASE.

graphics/xaos
graphics/inkscape

In both of these cases, one source file made use of 'csetjmp'.which displays an
error message now.  Changing the include from <csetjmp>' to '<setjmp.h>' works
around it.

#    error "If libc++ starts defining <setjmp.h>, the __has_include check
should move to libc++'s <setjmp.h>"

the 2 patches in the respective 'files' directories in the port appear to work
around it

The real problem seems to be the llvm headers, however, as patching the ports
only works for 14.1 RELEASE (probably)


uname strug:
FreeBSD hack.SFT.local 14.1-RELEASE FreeBSD 14.1-RELEASE GENERIC amd64

NOTE: new xaos patch actually has a second fix in it which I'll submit
separately.  These are both workarounds, really

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