lmbench: needs BR2_INET_RPC

This package uses several pmap_*() functions in the C library, that
are only available if the C library has RPC support.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/lmbench/Config.in

@@ -1,7 +1,12 @@
 config BR2_PACKAGE_LMBENCH
 	bool "lmbench"
+	# Uses pmap_set, pmap__unset, pmap_getport, etc.
+	depends on BR2_INET_RPC
 	help
 	  LMbench is a suite of simple, portable,
 	  ANSI/C microbenchmarks for UNIX/POSIX.
 
 	  http://sourceforge.net/projects/lmbench/
+
+comment "lmbench requires a toolchain with RPC support"
+        depends on !BR2_INET_RPC