recent compiler warnings

Sorry for starting a new thread, I can't find the correct one to reply to.

Using: gcc version 4.8.3 20140627 [gcc-4_8-branch revision 212064] (SUSE Linux)

commit ed0097e4f9e6b1 has introduced two compiler warnings:

gistutil.c: In function 'gistproperty':
gistutil.c:855:16: warning: variable 'rd_index' set but not used
[-Wunused-but-set-variable]
Form_pg_index rd_index;
^
amutils.c: In function 'test_indoption':
amutils.c:118:16: warning: variable 'rd_index' set but not used
[-Wunused-but-set-variable]
Form_pg_index rd_index;
^

commit ed0097e4f9e6b1227935e01fa67f12a238b66064
Author: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Date: Sat Aug 13 18:31:14 2016 -0400

Add SQL-accessible functions for inspecting index AM properties.

I don't know if this compiler is a too clever by half, or not clever enough.

Cheers,

Jeff