build failure latest -current, amd64 (ADD_STATIC_LIBASAN re-definition)

[B Harder <brad.harder%gmail.com@localhost>]

dependall ===> sbin/savecore
--- dependall ---
--- dependall-external ---
--- dependall-gpl3 ---
/usr/src/external/gpl3/gcc/dist/gcc/gcc.c:550:0: error:
"ADD_STATIC_LIBASAN_LIBS" redefined [-Werror]
 #define ADD_STATIC_LIBASAN_LIBS
 ^
In file included from
/usr/src/external/gpl3/gcc/usr.bin/frontend/../gcc/arch/x86_64/tm.h:29:0,
                 from /usr/src/external/gpl3/gcc/dist/gcc/gcc.c:34:
/usr/src/external/gpl3/gcc/dist/gcc/config/netbsd.h:147:0: note: this
is the location of the previous definition
 #define ADD_STATIC_LIBASAN_LIBS -lstdc++ -lpthread
 ^
--- dependall-bsd ---
--- atf-version-real.txt ---
--- atf-version.txt ---
--- dependall-tools ---
dependall ===> external/bsd/atf/lib/tools
--- dependall-sbin ---
--- dependall-scan_ffs ---