[Bug 277896] databases/mysql80-server databases/mysql81-server: fix build with libc++ 18 on i386

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=277896

            Bug ID: 277896
           Summary: databases/mysql80-server databases/mysql81-server: fix
                    build with libc++ 18 on i386
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: Individual Port(s)
          Assignee: joneum@FreeBSD.org
          Reporter: dim@FreeBSD.org
             Flags: maintainer-feedback?(joneum@FreeBSD.org)
          Assignee: joneum@FreeBSD.org

When building against libc++ 18, several iostream classes now get
inlined into C++ binaries for efficiency. But because the mysql ports
use -malign-double on non-powerpc architectures, this causes an ABI
problem with libc++.so, which has not been built with that flag, at
least on i386. This can cause segfaults during the build of the port.

If it is not the architecture default, as it is on amd64, -malign-double
should not be used without recompiling basically the entire userspace
runtime. Quoting the gcc docs:

> Warning: if you use the -malign-double switch, structures containing
> the above types are aligned differently than the published application
> binary interface specifications for the x86-32 and are not binary
> compatible with structures in code compiled without that switch.

Hence, remove -malign-double from CXXFLAGS for these ports.

-- 
You are receiving this mail because:
You are the assignee for the bug.