plparrot installcheck fails for me with a new database

kadath)(~/git/plparrot master )$ make && sudo make install && sudo make installcheck
sed 's,MODULE_PATHNAME,$libdir/plparrot,g' plparrot.sql.in >plparrot.sql
/usr/bin/gcc-4.0 -no-cpp-precomp -fstack-protector -L/usr/local/lib -L/opt/local/lib -L/Users/leto/svn/parrot/blib/lib -L/Users/leto/svn/parrot/installed_parrot/lib -lparrot -O2 -arch i386 -Wall -Wmissing-prototypes -Wpointer-arith -Winline -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv  -I"/Users/leto/svn/parrot/installed_parrot/include/2.0.0-devel" -I. -I. -I/opt/local/include/postgresql83/server -I/opt/local/include/postgresql83/internal -I/opt/local/include -I/opt/local/include/ossp -I/opt/local/include/libxml2  -I/opt/local/include  -c -o src/handler/plparrot.o src/handler/plparrot.c
i686-apple-darwin9-gcc-4.0.1: -lparrot: linker input file unused because linking not done
ar crs libsrc/handler/plparrot.a src/handler/plparrot.o
ranlib libsrc/handler/plparrot.a
/usr/bin/gcc-4.0 -no-cpp-precomp -fstack-protector -L/usr/local/lib -L/opt/local/lib -L/Users/leto/svn/parrot/blib/lib -L/Users/leto/svn/parrot/installed_parrot/lib -lparrot -O2 -arch i386 -Wall -Wmissing-prototypes -Wpointer-arith -Winline -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv  -bundle -multiply_defined suppress  src/handler/plparrot.o  -L/opt/local/lib/postgresql83 -L/opt/local/lib -L/opt/local/lib -L/opt/local/lib -bundle_loader /opt/local/lib/postgresql83/bin/postgres  -o libsrc/handler/plparrot.0.0.so
rm -f libsrc/handler/plparrot.0.so
ln -s libsrc/handler/plparrot.0.0.so libsrc/handler/plparrot.0.so
rm -f libsrc/handler/plparrot.so
ln -s libsrc/handler/plparrot.0.0.so libsrc/handler/plparrot.so
/bin/sh /opt/local/lib/postgresql83/pgxs/src/makefiles/../../config/install-sh -c -m 644 plparrot.sql '/opt/local/share/postgresql83/contrib'
/bin/sh /opt/local/lib/postgresql83/pgxs/src/makefiles/../../config/install-sh -c -m 755  libsrc/handler/plparrot.0.0.so '/opt/local/lib/postgresql83/src/handler/plparrot.so'
/opt/local/lib/postgresql83/pgxs/src/makefiles/../../src/test/regress/pg_regress --psqldir=/opt/local/lib/postgresql83/bin --dbname=pl_regression --load-language=plpgsql test
(using postmaster on Unix socket, default port)
============== dropping database "pl_regression"      ==============
psql: FATAL:  role "root" does not exist
command failed: "/opt/local/lib/postgresql83/bin/psql" -X -c "DROP DATABASE IF EXISTS \"pl_regression\"" "postgres"
make: *** [installcheck] Error 2