Parrot vs. Postgres Header file showdown

(kadath)(~/git/plparrot master )$ make test
cd src/handler; make
/usr/bin/gcc-4.0 -no-cpp-precomp -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 plparrot.o plparrot.c
In file included from /opt/local/include/postgresql83/server/postgres.h:48,
                 from plparrot.c:6:
/opt/local/include/postgresql83/server/c.h:93:1: warning: "_" redefined
In file included from plparrot.c:1:
/Users/leto/svn/parrot/installed_parrot/include/2.0.0-devel/parrot/parrot.h:231:1: warning: this is the location of the previous definition
In file included from /opt/local/include/postgresql83/server/postgres.h:48,
                 from plparrot.c:6:
/opt/local/include/postgresql83/server/c.h:98:1: warning: "gettext" redefined
In file included from /Users/leto/svn/parrot/installed_parrot/include/2.0.0-devel/parrot/parrot.h:230,
                 from plparrot.c:1:
/opt/local/include/libintl.h:131:1: warning: this is the location of the previous definition
In file included from /opt/local/include/postgresql83/server/postgres.h:48,
                 from plparrot.c:6:
/opt/local/include/postgresql83/server/c.h:105:1: warning: "gettext_noop" redefined
In file included from plparrot.c:1:
/Users/leto/svn/parrot/installed_parrot/include/2.0.0-devel/parrot/parrot.h:232:1: warning: this is the location of the previous definition
In file included from /opt/local/include/postgresql83/server/postgres.h:49,
                 from plparrot.c:6:
/opt/local/include/postgresql83/server/utils/elog.h:50:1: warning: "PANIC" redefined
In file included from /Users/leto/svn/parrot/installed_parrot/include/2.0.0-devel/parrot/parrot.h:266,
                 from plparrot.c:1:
/Users/leto/svn/parrot/installed_parrot/include/2.0.0-devel/parrot/exceptions.h:263:1: warning: this is the location of the previous definition
In file included from /opt/local/include/postgresql83/server/storage/bufmgr.h:17,
                 from /opt/local/include/postgresql83/server/storage/bufpage.h:17,
                 from /opt/local/include/postgresql83/server/access/relscan.h:18,
                 from /opt/local/include/postgresql83/server/access/heapam.h:18,
                 from /opt/local/include/postgresql83/server/executor/spi.h:26,
                 from plparrot.c:7:
/opt/local/include/postgresql83/server/storage/buf.h:23: error: conflicting types for ‘Buffer’
/Users/leto/svn/parrot/installed_parrot/include/2.0.0-devel/parrot/pobj.h:27: error: previous declaration of ‘Buffer’ was here
In file included from /opt/local/include/postgresql83/server/access/tupdesc.h:19,
                 from /opt/local/include/postgresql83/server/utils/rel.h:17,
                 from /opt/local/include/postgresql83/server/storage/bufmgr.h:18,
                 from /opt/local/include/postgresql83/server/storage/bufpage.h:17,
                 from /opt/local/include/postgresql83/server/access/relscan.h:18,
                 from /opt/local/include/postgresql83/server/access/heapam.h:18,
                 from /opt/local/include/postgresql83/server/executor/spi.h:26,
                 from plparrot.c:7:
/opt/local/include/postgresql83/server/nodes/pg_list.h:51: error: redefinition of ‘struct List’
/opt/local/include/postgresql83/server/nodes/pg_list.h:56: error: redefinition of typedef ‘List’
/Users/leto/svn/parrot/installed_parrot/include/2.0.0-devel/parrot/list.h:46: error: previous declaration of ‘List’ was here
In file included from /opt/local/include/postgresql83/server/nodes/execnodes.h:19,
                 from /opt/local/include/postgresql83/server/executor/execdesc.h:18,
                 from /opt/local/include/postgresql83/server/executor/executor.h:17,
                 from /opt/local/include/postgresql83/server/executor/spi.h:32,
                 from plparrot.c:7:
/opt/local/include/postgresql83/server/nodes/plannodes.h:522: error: conflicting types for ‘Hash’
/Users/leto/svn/parrot/installed_parrot/include/2.0.0-devel/parrot/parrot.h:246: error: previous declaration of ‘Hash’ was here
make[1]: *** [plparrot.o] Error 1
make: *** [all] Error 2