Building Erlang and rc?

[justint]

So Im trying to build erlang on a sun running solaris 7...
    I run the configure, no errors and then all I get is this error (so
what is this rc stuff anyway)?
any idea would rock... err please respond via mail and messages board,
thanks
                                                                Justin

bash-2.03# make
cd erts/system && ERL_TOP=/temp/erlang-47.4.1 make EMULATOR=jam opt
make[1]: Entering directory `/temp/erlang-47.4.1/erts/system'
make[2]: Entering directory
`/temp/erlang-47.4.1/erts/system/emulator/zlib'
make -f sparc-sun-solaris2.7/Makefile TYPE=opt
make[3]: Entering directory
`/temp/erlang-47.4.1/erts/system/emulator/zlib'
rc /temp/erlang-47.4.1/erts/obj/sparc-sun-solaris2.7/libz.a
/temp/erlang-47.4.1/erts/obj/sparc-sun-solaris2.7/adler32.o
/temp/erlang-47.4.1/erts/obj/sparc-sun-solaris2.7/compress.o
/temp/erlang-47.4.1/erts/obj/sparc-sun-solaris2.7/crc32.o
/temp/erlang-47.4.1/erts/obj/sparc-sun-solaris2.7/uncompr.o
/temp/erlang-47.4.1/erts/obj/sparc-sun-solaris2.7/deflate.o
/temp/erlang-47.4.1/erts/obj/sparc-sun-solaris2.7/trees.o
/temp/erlang-47.4.1/erts/obj/sparc-sun-solaris2.7/zutil.o
/temp/erlang-47.4.1/erts/obj/sparc-sun-solaris2.7/inflate.o
/temp/erlang-47.4.1/erts/obj/sparc-sun-solaris2.7/infblock.o
/temp/erlang-47.4.1/erts/obj/sparc-sun-solaris2.7/inftrees.o
/temp/erlang-47.4.1/erts/obj/sparc-sun-solaris2.7/infcodes.o
/temp/erlang-47.4.1/erts/obj/sparc-sun-solaris2.7/infutil.o
/temp/erlang-47.4.1/erts/obj/sparc-sun-solaris2.7/inffast.o
make[3]: rc: Command not found
make[3]: *** [/temp/erlang-47.4.1/erts/obj/sparc-sun-solaris2.7/libz.a]
Error 127
make[3]: Leaving directory
`/temp/erlang-47.4.1/erts/system/emulator/zlib'
make[2]: *** [opt] Error 2
make[2]: Leaving directory
`/temp/erlang-47.4.1/erts/system/emulator/zlib'
make[1]: *** [opt] Error 2
make[1]: Leaving directory `/temp/erlang-47.4.1/erts/system'
make: *** [emulator] Error 2