libtool shipped with subversion-1.5.5 is b0rk3d on Macports.
From: Jeremy McMillan <jeremy.mcmillan_at_gmail.com>
Date: Tue, 13 Jan 2009 13:47:10 -0600
> You may get this error while trying to compile Subversion 1.5.2:
> Turns out there may be a bug in the libtool script shipped with the source tarball, under certain circumstances with OS X 10.4, that causes it to fail to link. Ah, libtool, you make my life so much harder sometimes.
> If you copy /usr/bin/glibtool over $SRCDIR/libtool (that is, into the directory for the subversion source code, replacing the one that is placed there by the package itself), the package should compile with no further complaints. make test also shows success on all tests, so this seems a satisfactory solution.
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