[MacPorts] #55594: libuv @1.18.0 does not build on PPC Tiger because configure does not determine that unsetenv() is a void function?

[MacPorts]

#55594: libuv @1.18.0 does not build on PPC Tiger because configure does not
determine that unsetenv() is a void function?
-----------------------+-------------------
 Reporter:  ballapete  |      Owner:
     Type:  defect     |     Status:  new
 Priority:  Normal     |  Milestone:
Component:  ports      |    Version:  2.4.2
 Keywords:  tiger      |       Port:  libuv
-----------------------+-------------------
 {{{
 Executing:  cd
 "/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_devel_libuv/libuv/work/libuv-1.18.0"
 && /usr/bin/make -w all
 DEBUG: system:  cd
 "/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_devel_libuv/libuv/work/libuv-1.18.0"
 && /usr/bin/make -w all
 make: Entering directory
 `/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_devel_libuv/libuv/work/libuv-1.18.0'
   CC       src/libuv_la-fs-poll.lo
   CC       src/libuv_la-inet.lo
   CC       src/libuv_la-threadpool.lo
   CC       src/libuv_la-uv-common.lo
   CC       src/libuv_la-version.lo
   CC       src/unix/libuv_la-async.lo
   CC       src/unix/libuv_la-core.lo
 src/unix/core.c: In function 'uv_os_unsetenv':
 src/unix/core.c:1306: error: void value not ignored as it ought to be
 make: *** [src/unix/libuv_la-core.lo] Error 1
 make: Leaving directory
 `/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_devel_libuv/libuv/work/libuv-1.18.0'
 Command failed:  cd
 "/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_devel_libuv/libuv/work/libuv-1.18.0"
 && /usr/bin/make -w all
 Exit code: 2
 }}}

 `core.c` has:

 {{{
  1302   int uv_os_unsetenv(const char* name) {
  1303     if (name == NULL)
  1304       return -EINVAL;
  1305
  1306     if (unsetenv(name) != 0)
  1307       return -errno;
  1308
  1309     return 0;
  1310   }
 }}}

 Couldn't it just `return 0`?

--
Ticket URL: <https://trac.macports.org/ticket/55594>
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