[Bug 261412] [exp-run] With llvm-unwind headers placed in /usr/include

From: <bugzilla-noreply_at_freebsd.org>
Date: Sun, 23 Jan 2022 10:41:36 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=261412

            Bug ID: 261412
           Summary: [exp-run] With llvm-unwind headers placed in
                    /usr/include
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: Ports Framework
          Assignee: portmgr@FreeBSD.org
          Reporter: dim@FreeBSD.org
                CC: ports-bugs@FreeBSD.org

As reported in bug 261397, we are currently missing unwind.h and related
headers in /usr/include, so some programs can't find them. We do have these
headers in /usr/include/c++/v1, as part of the libcxxrt and libc++
installation, but this does not seem to be a standard location.

In https://reviews.freebsd.org/D34005 I have a patch that accomplishes two
things:
* It moves unwind headers to /usr/include
* It uses the llvm-libunwind headers instead of the older libcxxrt ones

Please perform an exp-run with this patch applied, making sure that the
obsolete files are deleted (to get rid of the unwind headers in
/usr/include/c++/v1).

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