samba4 @4.20.0: 'In function 'sys_quotactl_4B' . . . quotactl' from incompatible pointer type (powerpc, 10.5.8)

[saxfun]

[2150/3810] Compiling source3/libads/authdata.c
[2151/3810] Compiling source3/smbd/notifyd/notifyd_db.c
[2152/3810] Compiling source3/smbd/notifyd/notifyd_entry.c
[2153/3810] Compiling source3/smbd/notifyd/notifyd.c
[2154/3810] Linking bin/default/lib/cmdline/libcmdline-private-samba.dylib
[2155/3810] Compiling source3/lib/sysquotas_jfs2.c
[2156/3810] Compiling source3/lib/sysquotas_4B.c
../../source3/lib/sysquotas_4B.c: In function 'sys_quotactl_4B':
../../source3/lib/sysquotas_4B.c:138:39: error: passing argument 4 of 'quotactl' from incompatible pointer type [-Wincompatible-pointer-types]
  138 |         ret = quotactl(path, cmd, id, qblk);
      |                                       ^~~~
      |                                       |
      |                                       struct dqblk *
In file included from ../../source3/lib/sysquotas_4B.c:43:
/usr/include/sys/quota.h:223:38: note: expected 'caddr_t' {aka 'char *'} but argument is of type 'struct dqblk *'
  223 | int quotactl(const char *, int, int, caddr_t);
      |                                      ^~~~~~~

Waf: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_net_samba4/samba4/work/samba-4.20.0/bin/default'
Build failed
 -> task in 'sysquotas' failed with exit status 1 (run with -v to display more information)
make: *** [all] Error 1
Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_net_samba4/samba4/work/samba-4.20.0" && /usr/bin/make 
Exit code: 2
Error: Failed to build samba4: command execution failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_net_samba4/samba4/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets if you believe there is a bug.
Error: Processing of port samba4 failed

[barracuda156]

This looks like a minor bug in the code, regarding which gcc14 is stricter than earlier versions.

A quick fix will be to add:

configure.cflags-append -Wno-error=incompatible-pointer-types

Or otherwise build it with gcc13.

Probably has nothing to do with powerpc specifically.