making 7.4 beta2 on Mac OS x

I thought I would try to make 7.4beta2 on my os X
machine. I used the default ./configure then make.
make says everything is ok to install so I tried a
make check.. this is my error log.

gcc is set for 3.1
os X 10.2.6.

I don't know if this is just a 'make check' problem or
if what I have is NFG.

Ted

Running in noclean mode. Mistakes will not be cleaned
up.
The files belonging to this database system will be
owned by user "postgres".
This user must also own the server process.

The database cluster will be initialized with locale
C.

creating directory
/Users/postgres/postgres/postgresql-7.4beta2/src/test/regress/./tmp_check/data...
ok
creating directory
/Users/postgres/postgres/postgresql-7.4beta2/src/test/regress/./tmp_check/data/base...
ok
creating directory
/Users/postgres/postgres/postgresql-7.4beta2/src/test/regress/./tmp_check/data/global...
ok
creating directory
/Users/postgres/postgres/postgresql-7.4beta2/src/test/regress/./tmp_check/data/pg_xlog...
ok
creating directory
/Users/postgres/postgres/postgresql-7.4beta2/src/test/regress/./tmp_check/data/pg_clog...
ok
selecting default shared_buffers... 200
selecting default max_connections... 30
creating configuration files... ok
creating template1 database in
/Users/postgres/postgres/postgresql-7.4beta2/src/test/regress/./tmp_check/data/base/1...
FATAL: could not create shared memory segment:
Invalid argument
DETAIL: Failed syscall was shmget(key=1,
size=10444800, 03600).
HINT: This error usually means that PostgreSQL's
request for a shared memory segment exceeded your
kernel's SHMMAX parameter. You can either reduce the
request size or reconfigure the kernel with larger
SHMMAX. To reduce the request size (currently 10444800
bytes), reduce PostgreSQL's shared_buffers parameter
(currently 1000) and/or its max_connections parameter
(currently 100).
If the request size is already small, it's possible
that it is less than your kernel's SHMMIN parameter,
in which case raising the request size or
reconfiguring SHMMIN is called for.
The PostgreSQL documentation contains more information
about shared memory configuration.

initdb: failed
initdb: data directory
"/Users/postgres/postgres/postgresql-7.4beta2/src/test/regress/./tmp_check/data"
not removed at user's request

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