Enable rpcgen unconditionally even if Sun RPC is disabled.
rpcgen will be installed into the glibc-rpcgen subpackage.

diff --git a/sunrpc/Makefile b/sunrpc/Makefile
index 8f2a3c8213e3564e..69be5c119bf5ff85 100644
--- a/sunrpc/Makefile
+++ b/sunrpc/Makefile
@@ -85,14 +85,12 @@ shared-only-routines = $(routines)
 endif
 endif
 
-ifeq ($(link-obsolete-rpc),yes)
 install-bin := rpcgen
 rpcgen-objs = rpc_main.o rpc_hout.o rpc_cout.o rpc_parse.o \
 	      rpc_scan.o rpc_util.o rpc_svcout.o rpc_clntout.o \
 	      rpc_tblout.o rpc_sample.o
 extra-objs = $(rpcgen-objs) $(addprefix cross-,$(rpcgen-objs))
 others += rpcgen
-endif
 
 tests = tst-xdrmem tst-xdrmem2 test-rpcent tst-udp-error tst-udp-timeout \
   tst-udp-nonblocking