apr-util does not respect Macports arch settings

[barracuda156]

On Rosetta:

/bin/sh /opt/local/share/apr-1/build/libtool --silent --mode=link --tag=CC /usr/bin/gcc-4.2 -std=gnu99   -pipe -Os  -DHAVE_CONFIG_H  -DDARWIN -DSIGPROCMASK_SETS_THREAD_MASK -DDARWIN_10  -I/opt/local/include -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_apr-util/apr-util/work/apr-util-1.6.3/include -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_apr-util/apr-util/work/apr-util-1.6.3/include/private -I/opt/local/include  -I/opt/local/include/apr-1  -I/opt/local/include   -version-info 6:3:6   -L/opt/local/lib -Wl,-headerpad_max_install_names  -o libaprutil-1.la -rpath /opt/local/lib buckets/apr_brigade.lo buckets/apr_buckets.lo buckets/apr_buckets_alloc.lo buckets/apr_buckets_eos.lo buckets/apr_buckets_file.lo buckets/apr_buckets_flush.lo buckets/apr_buckets_heap.lo buckets/apr_buckets_mmap.lo buckets/apr_buckets_pipe.lo buckets/apr_buckets_pool.lo buckets/apr_buckets_refcount.lo buckets/apr_buckets_simple.lo buckets/apr_buckets_socket.lo crypto/apr_crypto.lo crypto/apr_md4.lo crypto/apr_md5.lo crypto/apr_passwd.lo crypto/apr_sha1.lo crypto/apr_siphash.lo crypto/crypt_blowfish.lo crypto/getuuid.lo crypto/uuid.lo dbd/apr_dbd.lo dbm/apr_dbm.lo dbm/apr_dbm_sdbm.lo dbm/sdbm/sdbm.lo dbm/sdbm/sdbm_hash.lo dbm/sdbm/sdbm_lock.lo dbm/sdbm/sdbm_pair.lo encoding/apr_base64.lo hooks/apr_hooks.lo ldap/apr_ldap_stub.lo ldap/apr_ldap_url.lo memcache/apr_memcache.lo misc/apr_date.lo misc/apr_queue.lo misc/apr_reslist.lo misc/apr_rmm.lo misc/apr_thread_pool.lo misc/apu_dso.lo misc/apu_version.lo redis/apr_redis.lo strmatch/apr_strmatch.lo uri/apr_uri.lo xlate/xlate.lo xml/apr_xml.lo    -lpthread -L/opt/local/lib/db48 -L/opt/local/lib -lexpat -liconv /opt/local/lib/libapr-1.la -lpthread
/bin/sh /opt/local/share/apr-1/build/libtool --silent --mode=link --tag=CC /usr/bin/gcc-4.2 -std=gnu99    -pipe -Os    -L/opt/local/lib -Wl,-headerpad_max_install_names  -L/opt/local/lib/db48 -L/opt/local/lib -release 1 -module -rpath /opt/local/lib/apr-util-1 -o dbm/apr_dbm_db.la dbm/apr_dbm_berkeleydb.lo -ldb-4.8
/bin/sh /opt/local/share/apr-1/build/libtool --silent --mode=link --tag=CC /usr/bin/gcc-4.2 -std=gnu99    -pipe -Os    -L/opt/local/lib -Wl,-headerpad_max_install_names  -L/opt/local/lib/db48 -L/opt/local/lib -release 1 -module -rpath /opt/local/lib/apr-util-1 -o dbd/apr_dbd_sqlite3.la dbd/apr_dbd_sqlite3.lo -L/opt/local/lib  -lsqlite3
ld: warning: in /opt/local/lib/db48/libdb-4.8.dylib, file was built for ppc7400 which is not the architecture being linked (x86_64)
ld: warning: in /opt/local/lib/libexpat.dylib, file was built for ppc7400 which is not the architecture being linked (x86_64)
ld: warning: in /opt/local/lib/libiconv.dylib, file was built for ppc7400 which is not the architecture being linked (x86_64)
ld: warning: in /opt/local/lib/libapr-1.dylib, file was built for ppc7400 which is not the architecture being linked (x86_64)
/opt/local/bin/ranlib: file: .libs/libaprutil-1.a(apr_crypto.o) has no symbols
/opt/local/bin/ranlib: file: .libs/libaprutil-1.a(apr_ldap_stub.o) has no symbols
/opt/local/bin/ranlib: file: .libs/libaprutil-1.a(apr_ldap_url.o) has no symbols
ranlib: file: .libs/libaprutil-1.a(apr_crypto.o) has no symbols
ranlib: file: .libs/libaprutil-1.a(apr_ldap_stub.o) has no symbols
ranlib: file: .libs/libaprutil-1.a(apr_ldap_url.o) has no symbols

Subsequently, libaprutil-1.dylib is unusable. When trying to build apache2, this happens:

/opt/local/share/apr-1/build/libtool --silent --mode=link --tag=CC /opt/local/bin/gcc-mp-12    -pipe -Os -arch ppc    -L/opt/local/lib/db48  -L/opt/local/lib -Wl,-headerpad_max_install_names -arch ppc -o htpasswd  htpasswd.lo passwd_common.lo      /opt/local/lib/libaprutil-1.la -ldb-4.8 -lexpat -liconv /opt/local/lib/libapr-1.la -lpthread 
/opt/local/share/apr-1/build/libtool --silent --mode=link --tag=CC /opt/local/bin/gcc-mp-12    -pipe -Os -arch ppc    -L/opt/local/lib/db48  -L/opt/local/lib -Wl,-headerpad_max_install_names -arch ppc -o htdigest  htdigest.lo      /opt/local/lib/libaprutil-1.la -ldb-4.8 -lexpat -liconv /opt/local/lib/libapr-1.la -lpthread
ld: warning: in /opt/local/lib/libaprutil-1.dylib, file was built for unsupported file format which is not the architecture being linked (ppc)
Undefined symbols:
  "_apr_md5_encode", referenced from:
      _mkhash in passwd_common.o
  "_apr_bcrypt_encode", referenced from:
      _mkhash in passwd_common.o
  "_apr_sha1_base64", referenced from:
      _mkhash in passwd_common.o
  "_apr_password_validate", referenced from:
      _main in htpasswd.o
ld: symbol(s) not found
collect2: error: ld returned 1 exit status
make[2]: *** [htpasswd] Error 1
make[2]: *** Waiting for unfinished jobs....
ld: warning: in /opt/local/lib/libaprutil-1.dylib, file was built for unsupported file format which is not the architecture being linked (ppc)
Undefined symbols:
  "_apr_md5_update", referenced from:
      _add_password in htdigest.o
  "_apr_md5_final", referenced from:
      _add_password in htdigest.o
  "_apr_md5_init", referenced from:
      _add_password in htdigest.o
ld: symbol(s) not found
collect2: error: ld returned 1 exit status

[ryandesign (Ryan Carsten Schmidt)]

Duplicate of #67101.