Spidermonkey build failure (undefined symbols) on 32-bit OS X 10.6

[breaker.dave@…]

The spidermonkey port on 32bit OS X 10.6/32bit firmware fails.

macports.conf settings are:

build_arch                      i386

# machine architectures
universal_archs        i386

The following ports are currently installed:
  apache2 @2.2.14_1+darwin+preforkmpm (active)
  apr @1.3.12_1 (active)
  apr-util @1.3.9_2 (active)
  bzip2 @1.0.5_3+darwin (active)
  db46 @4.6.21_6 (active)
  expat @2.0.1_0 (active)
  gperf @3.0.4_0 (active)
  icu @4.3.4_0 (active)
  libiconv @1.13.1_0 (active)
  ncurses @5.7_0+darwin_10 (active)
  ncursesw @5.7_0+darwin_10 (active)
  openssl @0.9.8m_0+darwin (active)
  pcre @7.9_0 (active)
  readline @6.1.000_1+darwin (active)
  sqlite3 @3.6.23_0 (active)
  xercesc @2.8.0_2+darwin (active)
  zlib @1.2.4_1 (active)

DEBUG: Found port in file:///opt/local/var/macports/sources/rsync.macports.org/release/ports/lang/spidermonkey
DEBUG: Changing to port directory: /opt/local/var/macports/sources/rsync.macports.org/release/ports/lang/spidermonkey
DEBUG: OS Platform: darwin
DEBUG: OS Version: 10.2.0
DEBUG: Mac OS X Version: 10.6
DEBUG: System Arch: i386
DEBUG: setting option os.universal_supported to yes
DEBUG: org.macports.load registered provides 'load', a pre-existing procedure. Target override will not be provided
DEBUG: org.macports.unload registered provides 'unload', a pre-existing procedure. Target override will not be provided
DEBUG: org.macports.distfiles registered provides 'distfiles', a pre-existing procedure. Target override will not be provided
DEBUG: Using group file /opt/local/var/macports/sources/rsync.macports.org/release/ports/_resources/port1.0/group/muniversal-1.0.tcl
DEBUG: Reading variant descriptions from /opt/local/var/macports/sources/rsync.macports.org/release/ports/_resources/port1.0/variant_descriptions.conf
DEBUG: universal variant already exists, so not adding the default one
DEBUG: Requested variant darwin is not provided by port spidermonkey.
DEBUG: Requested variant i386 is not provided by port spidermonkey.
DEBUG: Requested variant macosx is not provided by port spidermonkey.
DEBUG: Found port in file:///opt/local/var/macports/sources/rsync.macports.org/release/ports/devel/readline
DEBUG: epoch: in tree: 0 installed: 0
DEBUG: readline 6.1.000_1 exists in the ports tree
DEBUG: readline 6.1.000_1 +darwin is the latest installed
DEBUG: readline 6.1.000_1 +darwin is active
DEBUG: Merging existing variants darwin into variants
DEBUG: new fully merged portvariants: 
DEBUG: Changing to port directory: /opt/local/var/macports/sources/rsync.macports.org/release/ports/devel/readline
DEBUG: OS Platform: darwin
DEBUG: OS Version: 10.2.0
DEBUG: Mac OS X Version: 10.6
DEBUG: System Arch: i386
DEBUG: setting option os.universal_supported to yes
DEBUG: org.macports.load registered provides 'load', a pre-existing procedure. Target override will not be provided
DEBUG: org.macports.unload registered provides 'unload', a pre-existing procedure. Target override will not be provided
DEBUG: org.macports.distfiles registered provides 'distfiles', a pre-existing procedure. Target override will not be provided
DEBUG: Using group file /opt/local/var/macports/sources/rsync.macports.org/release/ports/_resources/port1.0/group/muniversal-1.0.tcl
DEBUG: Reading variant descriptions from /opt/local/var/macports/sources/rsync.macports.org/release/ports/_resources/port1.0/variant_descriptions.conf
DEBUG: universal variant already exists, so not adding the default one
DEBUG: Requested variant i386 is not provided by port readline.
DEBUG: Requested variant macosx is not provided by port readline.
DEBUG: Executing variant darwin provides darwin
DEBUG: Found port in file:///opt/local/var/macports/sources/rsync.macports.org/release/ports/devel/ncurses
DEBUG: epoch: in tree: 0 installed: 0
DEBUG: ncurses 5.7_0 exists in the ports tree
DEBUG: ncurses 5.7_0 +darwin_10 is the latest installed
DEBUG: ncurses 5.7_0 +darwin_10 is active
DEBUG: Merging existing variants darwin_10 into variants
DEBUG: new fully merged portvariants: 
DEBUG: Changing to port directory: /opt/local/var/macports/sources/rsync.macports.org/release/ports/devel/ncurses
DEBUG: OS Platform: darwin
DEBUG: OS Version: 10.2.0
DEBUG: Mac OS X Version: 10.6
DEBUG: System Arch: i386
DEBUG: setting option os.universal_supported to yes
DEBUG: org.macports.load registered provides 'load', a pre-existing procedure. Target override will not be provided
DEBUG: org.macports.unload registered provides 'unload', a pre-existing procedure. Target override will not be provided
DEBUG: org.macports.distfiles registered provides 'distfiles', a pre-existing procedure. Target override will not be provided
DEBUG: Using group file /opt/local/var/macports/sources/rsync.macports.org/release/ports/_resources/port1.0/group/muniversal-1.0.tcl
DEBUG: Reading variant descriptions from /opt/local/var/macports/sources/rsync.macports.org/release/ports/_resources/port1.0/variant_descriptions.conf
DEBUG: universal variant already exists, so not adding the default one
DEBUG: Requested variant darwin is not provided by port ncurses.
DEBUG: Requested variant i386 is not provided by port ncurses.
DEBUG: Requested variant macosx is not provided by port ncurses.
DEBUG: Executing variant darwin_10 provides darwin_10
DEBUG: Found port in file:///opt/local/var/macports/sources/rsync.macports.org/release/ports/devel/ncursesw
DEBUG: epoch: in tree: 0 installed: 0
DEBUG: ncursesw 5.7_0 exists in the ports tree
DEBUG: ncursesw 5.7_0 +darwin_10 is the latest installed
DEBUG: ncursesw 5.7_0 +darwin_10 is active
DEBUG: Merging existing variants darwin_10 into variants
DEBUG: new fully merged portvariants: 
DEBUG: Changing to port directory: /opt/local/var/macports/sources/rsync.macports.org/release/ports/devel/ncursesw
DEBUG: OS Platform: darwin
DEBUG: OS Version: 10.2.0
DEBUG: Mac OS X Version: 10.6
DEBUG: System Arch: i386
DEBUG: setting option os.universal_supported to yes
DEBUG: org.macports.load registered provides 'load', a pre-existing procedure. Target override will not be provided
DEBUG: org.macports.unload registered provides 'unload', a pre-existing procedure. Target override will not be provided
DEBUG: org.macports.distfiles registered provides 'distfiles', a pre-existing procedure. Target override will not be provided
DEBUG: Using group file /opt/local/var/macports/sources/rsync.macports.org/release/ports/_resources/port1.0/group/muniversal-1.0.tcl
DEBUG: Reading variant descriptions from /opt/local/var/macports/sources/rsync.macports.org/release/ports/_resources/port1.0/variant_descriptions.conf
DEBUG: universal variant already exists, so not adding the default one
DEBUG: Requested variant darwin is not provided by port ncursesw.
DEBUG: Requested variant i386 is not provided by port ncursesw.
DEBUG: Requested variant macosx is not provided by port ncursesw.
DEBUG: Executing variant darwin_10 provides darwin_10
DEBUG: No need to upgrade! ncursesw 5.7_0 >= ncursesw 5.7_0
DEBUG: No need to upgrade! ncurses 5.7_0 >= ncurses 5.7_0
DEBUG: No need to upgrade! readline 6.1.000_1 >= readline 6.1.000_1
--->  Computing dependencies for spidermonkey
DEBUG: Searching for dependency: nspr
DEBUG: Didn't find receipt, going to depspec regex for: nspr
DEBUG: Found port in file:///opt/local/var/macports/sources/rsync.macports.org/release/ports/devel/nspr
DEBUG: Changing to port directory: /opt/local/var/macports/sources/rsync.macports.org/release/ports/devel/nspr
DEBUG: OS Platform: darwin
DEBUG: OS Version: 10.2.0
DEBUG: Mac OS X Version: 10.6
DEBUG: System Arch: i386
DEBUG: setting option os.universal_supported to yes
DEBUG: org.macports.load registered provides 'load', a pre-existing procedure. Target override will not be provided
DEBUG: org.macports.unload registered provides 'unload', a pre-existing procedure. Target override will not be provided
DEBUG: org.macports.distfiles registered provides 'distfiles', a pre-existing procedure. Target override will not be provided
DEBUG: Using group file /opt/local/var/macports/sources/rsync.macports.org/release/ports/_resources/port1.0/group/muniversal-1.0.tcl
DEBUG: Reading variant descriptions from /opt/local/var/macports/sources/rsync.macports.org/release/ports/_resources/port1.0/variant_descriptions.conf
DEBUG: universal variant already exists, so not adding the default one
DEBUG: Requested variant darwin is not provided by port nspr.
DEBUG: Requested variant i386 is not provided by port nspr.
DEBUG: Requested variant macosx is not provided by port nspr.
DEBUG: Searching for dependency: readline
DEBUG: Found Dependency: receipt exists for readline
DEBUG: Executing org.macports.main (nspr)
DEBUG: Skipping completed org.macports.fetch (nspr)
DEBUG: Skipping completed org.macports.checksum (nspr)
DEBUG: Skipping completed org.macports.extract (nspr)
DEBUG: Skipping completed org.macports.patch (nspr)
DEBUG: Skipping completed org.macports.configure (nspr)
--->  Building nspr
DEBUG: Executing org.macports.build (nspr)
DEBUG: Environment: MACOSX_DEPLOYMENT_TARGET='10.6'
DEBUG: Assembled command: 'cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_devel_nspr/work/nspr-4.8.3/mozilla/nsprpub" && /usr/bin/make -j3 all'
/usr/bin/make -j1 -C config export
make[1]: warning: -jN forced in submake: disabling jobserver mode.
/usr/bin/gcc-4.2  now.o -L/opt/local/lib  -o now
ld: warning: in now.o, file is not of required architecture
Undefined symbols:
  "_main", referenced from:
      start in crt1.10.6.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
make[1]: *** [now] Error 1
make: *** [export] Error 2
Error: Target org.macports.build returned: shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_devel_nspr/work/nspr-4.8.3/mozilla/nsprpub" && /usr/bin/make -j3 all " returned error 2
DEBUG: Backtrace: shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_devel_nspr/work/nspr-4.8.3/mozilla/nsprpub" && /usr/bin/make -j3 all " returned error 2
    while executing
"command_exec build"
    (procedure "portbuild::build_main" line 9)
    invoked from within
"$procedure $targetname"
Warning: the following items did not execute (for nspr): org.macports.activate org.macports.build org.macports.destroot org.macports.install
Error: The following dependencies failed to build: nspr
Error: Status 1 encountered during processing.

[jmroot (Joshua Root)]

Please remember to preview and use WikiFormatting, and cc the maintainer.

Please show the output of sysctl hw.cpu64bit_capable. BTW, although it likely has nothing to do with this problem, setting universal_archs to a single arch makes no sense.