db46 fails to build with non-default build_arch

[thomas@…]

Generated output is the following:

--->  Attempting to fetch db-4.6.21.tar.gz from http://arn.se.distfiles.macports.org/db4/4.6.21_5
--->  Verifying checksum(s) for db46
--->  Extracting db46
--->  Applying patches to db46
--->  Configuring db46
--->  Building db46
Error: Target org.macports.build returned: shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_databases_db46/work/db-4.6.21/build_unix" && /usr/bin/make -j2 all " returned error 2
Command output: collect2: ld returned 1 exit status
make: *** [db_archive] Error 1
make: *** Waiting for unfinished jobs....
/usr/bin/gcc-4.2 -O2 -arch i386 -o .libs/db_checkpoint .libs/db_checkpoint.o .libs/util_log.o .libs/util_sig.o  -L/opt/local/lib ./.libs/libdb-4.6.dylib 
ld: warning: in ./.libs/libdb-4.6.dylib, file is not of required architecture
Undefined symbols:
  "___os_id", referenced from:
      ___db_util_logset in util_log.o
  "_db_env_create", referenced from:
      _main in db_checkpoint.o
  "___os_sleep", referenced from:
      _main in db_checkpoint.o
  "___db_ctime", referenced from:
      _main in db_checkpoint.o
      _main in db_checkpoint.o
      ___db_util_logset in util_log.o
  "___db_rpath", referenced from:
      _main in db_checkpoint.o
  "_db_version", referenced from:
      _version_check in db_checkpoint.o
      _main in db_checkpoint.o
  "___db_getlong", referenced from:
      _main in db_checkpoint.o
      _main in db_checkpoint.o
  "_db_strerror", referenced from:
      _main in db_checkpoint.o
      _main in db_checkpoint.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
make: *** [db_checkpoint] Error 1

After adding configure.ldflags to the db46/Portfile, everything works fine.

[thomas@…]

Diff's direction went wrong

[macsforever2000@…]

See also #20875.

[jmr@…]

better patch

[jmr@…]

r60244 (maintainer timeout)