[pfx] Re: PATCH: postfix 3.11.2 build failed with musl lib on linux

This is timely, thanks!

Haven't tried with 3.11 yet, but the same works for 3.10.9

On Wed, May 13, 2026 at 10:06 AM Wietse Venema via Postfix-users <
[email protected]> wrote:

> Changqing Li via Postfix-users:
> > [snip of src/util/sys_defs.h]
> >
> > #if HAVE_GLIBC_API_VERSION_SUPPORT(2, 1)
> > #define SOCKADDR_SIZE   socklen_t
> > #define SOCKOPT_SIZE    socklen_t
> > #else
> > #define NO_SNPRINTF
> > #endif
> >
> > For musl lib, #else branch is selected, so NO_SNPRINTF is defined,  and
> > in vbuf_print.c,  if NO_SNPRINTF is defined,
>
> Please try the patch below.
>
>         Wietse
>
> diff '--exclude=man' '--exclude=html' '--exclude=README_FILES'
> '--exclude=INSTALL' --no-dereference -r -ur
> /var/tmp/postfix-3.11.2/src/util/sys_defs.h ./src/util/sys_defs.h
> --- /var/tmp/postfix-3.11.2/src/util/sys_defs.h 2026-05-01
> 14:55:47.000000000 -0400
> +++ ./src/util/sys_defs.h       2026-05-13 10:02:10.406636873 -0400
> @@ -797,8 +797,6 @@
>  #if HAVE_GLIBC_API_VERSION_SUPPORT(2, 1)
>  #define SOCKADDR_SIZE  socklen_t
>  #define SOCKOPT_SIZE   socklen_t
> -#else
> -#define NO_SNPRINTF
>  #endif
>  #ifndef NO_IPV6
>  #define HAS_IPV6
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