build failed linux amd64 mess (and ume) gcc 4.9.2
last commit Fri Feb 6 01:13:55 2015 +0100

src/mess/drivers/pc9801.c: In member function UINT16 pc9801_state::egc_do_partial_op(int, UINT16, UINT16, UINT16):
src/mess/drivers/pc9801.c:1372:6: error: unused variable dst_off [-Werror=unused-variable]
int dst_off = (m_egc.regs[6] >> 4) & 0xf;
^
src/mess/drivers/pc9801.c:1373:9: error: unused variable src_tmp [-Werror=unused-variable]
UINT16 src_tmp = src;
...
makefile:972: recipe for target 'obj/sdl64/mess/drivers/pc9801.o' failed
make: *** [obj/sdl64/mess/drivers/pc9801.o] Error 1

Is this commit the problem:

commit 86cadf5f710d1631ec81314c0bfa5e24fdf2647e
Author: cracyc <cracyc@users.noreply.github.com>
Date: Thu Feb 5 12:18:12 2015 -0600

(mess) pc9801: fix egc shifter (nw)