tbb 2.2-20090809 Build failure with "no such variable"

[leducvin@…]

Using MacOS 10.4.11 on ppc, with Apple gcc 4.0

$ sudo port -d install tbb DEBUG: Found port in ​file:///opt/local/var/macports/sources/www.macports.org/files/ports/devel/tbb DEBUG: Changing to port directory: /opt/local/var/macports/sources/www.macports.org/files/ports/devel/tbb DEBUG: OS Platform: darwin DEBUG: OS Version: 8.11.0 DEBUG: Mac OS X Version: 10.4 DEBUG: System Arch: powerpc 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.distfiles registered provides 'distfiles', a pre-existing procedure. Target override will not be provided DEBUG: 'universal_variant no' specified, so not adding the default universal variant DEBUG: Requested variant powerpc is not provided by port tbb. DEBUG: Requested variant darwin is not provided by port tbb. DEBUG: Requested variant macosx is not provided by port tbb. ---> Computing dependencies for tbb DEBUG: Executing org.macports.main (tbb) DEBUG: Skipping completed org.macports.fetch (tbb) DEBUG: Skipping completed org.macports.checksum (tbb) DEBUG: Skipping completed org.macports.extract (tbb) DEBUG: Skipping completed org.macports.patch (tbb) ---> Configuring tbb DEBUG: Using compiler 'Mac OS X gcc 4.0' DEBUG: Executing org.macports.configure (tbb) Error: Target org.macports.configure returned: can't read "arch_flag": no such variable DEBUG: Backtrace: can't read "arch_flag": no such variable

while executing

"$procedure $targetname" Warning: the following items did not execute (for tbb): org.macports.activate org.macports.configure org.macports.build org.macports.destroot org.macports.install Error: Status 1 encountered during processing. To report a bug, see <​http://guide.macports.org/#project.tickets>

Output included in a file (tbb-debug-output.txt) for readability.