make error on 5 branch?

[Gedare Bloom]

I built/installed clean tools from rsb/5 and bootstrapped rtems/5 then:
../../rtems/configure --prefix=/home/gedare/development/rtems/5
--target=sparc-rtems5 --enable-rtemsbsp=erc32 --enable-posix
--enable-tests
[...] looks ok
make
[...]
checking for RTEMS_BSP... erc32
configure: error: Invalid BSP
configure: error:
../../../../../../../../rtems/c/src/lib/libbsp/sparc/configure failed
for lib/libbsp/sparc
Makefile:731: recipe for target 'erc32' failed

Can anyone reproduce?