Mercurial doesn't build on Leopard

[ndw@…]

$ sudo port install mercurial ... ---> Attempting to fetch mercurial-0.9.5.tar.gz from ​http://www.selenic.com/mercurial/release/ ---> Verifying checksum(s) for mercurial ---> Extracting mercurial ---> Configuring mercurial ---> Building mercurial with target build 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_mercurial/work/mercurial-0.9.5" && /opt/local/bin/python2.4 setup.py build " returned error 1 Command output: copying hgext/graphlog.py -> build/lib.macosx-10.3-i386-2.4/hgext copying hgext/hbisect.py -> build/lib.macosx-10.3-i386-2.4/hgext copying hgext/hgk.py -> build/lib.macosx-10.3-i386-2.4/hgext copying hgext/imerge.py -> build/lib.macosx-10.3-i386-2.4/hgext copying hgext/interhg.py -> build/lib.macosx-10.3-i386-2.4/hgext copying hgext/mq.py -> build/lib.macosx-10.3-i386-2.4/hgext copying hgext/notify.py -> build/lib.macosx-10.3-i386-2.4/hgext copying hgext/parentrevspec.py -> build/lib.macosx-10.3-i386-2.4/hgext copying hgext/patchbomb.py -> build/lib.macosx-10.3-i386-2.4/hgext copying hgext/purge.py -> build/lib.macosx-10.3-i386-2.4/hgext copying hgext/record.py -> build/lib.macosx-10.3-i386-2.4/hgext copying hgext/transplant.py -> build/lib.macosx-10.3-i386-2.4/hgext copying hgext/win32text.py -> build/lib.macosx-10.3-i386-2.4/hgext creating build/lib.macosx-10.3-i386-2.4/hgext/convert copying hgext/convert/init.py -> build/lib.macosx-10.3-i386-2.4/hgext/convert copying hgext/convert/common.py -> build/lib.macosx-10.3-i386-2.4/hgext/convert copying hgext/convert/cvs.py -> build/lib.macosx-10.3-i386-2.4/hgext/convert copying hgext/convert/darcs.py -> build/lib.macosx-10.3-i386-2.4/hgext/convert copying hgext/convert/filemap.py -> build/lib.macosx-10.3-i386-2.4/hgext/convert copying hgext/convert/git.py -> build/lib.macosx-10.3-i386-2.4/hgext/convert copying hgext/convert/hg.py -> build/lib.macosx-10.3-i386-2.4/hgext/convert copying hgext/convert/subversion.py -> build/lib.macosx-10.3-i386-2.4/hgext/convert copying hgext/convert/transport.py -> build/lib.macosx-10.3-i386-2.4/hgext/convert running build_ext building 'mercurial.mpatch' extension creating build/temp.macosx-10.3-i386-2.4 creating build/temp.macosx-10.3-i386-2.4/mercurial -fno-strict-aliasing -Wno-long-double -no-cpp-precomp -fno-common -fno-common -dynamic -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I/opt/local/Library/Frameworks/Python.framework/Versions/2.4/include/python2.4 -c mercurial/mpatch.c -o build/temp.macosx-10.3-i386-2.4/mercurial/mpatch.o unable to execute -fno-strict-aliasing: No such file or directory error: command '-fno-strict-aliasing' failed with exit status 1

Error: Status 1 encountered during processing.