On Wednesday, 13 August 2025 at 14:58:16 UTC, Brian Callahan
wrote:
Hi all --
In writing my new script to make it easy to bootstrap GDC on
any platform (https://github.com/ibara/gcc-bootstrap), I
discovered that GDC does not build on FreeBSD 14. It's a bit
too long to explain in a post, so here's the link to my blog
post on the topic: https://briancallahan.net/blog/20250813.html
I don't think there's anything the D team can do about this
one; the FreeBSD people will need to implement a proper
solution. But it was interesting nonetheless, so I'm sharing it.
~Brian
You could fix it by removing `pragma(mangle)`, as that is an
abuse of the pragma. It's unlikely there's going to be any third
party users of this internal module anyway.
If keeping a backwards compat version is really a must, I reckon
you could implement it with a shim thunk/function instead.
```d
static if (__FreeBSD_version >= 1400000)
{
alias extern (C) int function(scope const void*, scope const
void*, scope void*) Cmp;
extern (C) void qsort_r(scope void* base, size_t nmemb,
size_t size, Cmp cmp, scope void* thunk);
//
https://cgit.freebsd.org/src/tree/include/stdlib.h?h=stable/14#n350
alias extern (C) int function(scope void*, scope const void*,
scope const void*) OldCmp;
deprecated("In FreeBSD 14, qsort_r's signature was fixed to
match POSIX. This extern(D) overload has been " ~
"provided to avoid breaking code, but code should
be updated to use the POSIX version.")
extern (D) void qsort_r(scope void* base, size_t nmemb,
size_t size, scope void* thunk, OldCmp oldcmp)
{
static struct Wrap
{
void* thunk;
OldCmp oldcmp;
}
auto wrap = Wrap(thunk, oldcmp);
extern (C) int cmp(scope const void* p1, scope const
void* p2, scope void* pwrap)
{
auto wrap = cast(Wrap*)pwrap;
return wrap.oldcmp(wrap.thunk, p1, p2);
}
qsort_r(base, nmemb, size, &cmp, &wrap);
}
extern (C) void[] _adSort(return scope void[] a, TypeInfo ti)
{
extern (C) int cmp(scope const void* p1, scope const
void* p2, scope void* ti)
{
return (cast(TypeInfo)ti).compare(p1, p2);
}
qsort_r(a.ptr, a.length, ti.tsize, &cmp, cast(void*)ti);
return a;
}
}
```
