Looks like a regression for migration to GNU Automake.
;;
memory)
# http://clang.llvm.org/docs/MemorySanitizer.html
- BASE_COMPILE_FLAGS+=" -fsanitize=memory -fno-omit-frame-pointer -g -O2 -fsanitize-memory-track-origins -fsanitize-blacklist=memory-sanitizer-blacklist.txt"
+ BASE_COMPILE_FLAGS+=" -fsanitize=memory -fno-omit-frame-pointer -g -O2 -fsanitize-memory-track-origins -fsanitize-blacklist=$PWD/memory-sanitizer-blacklist.txt"
;;
ncc)
# http://students.ceid.upatras.gr/~sxanth/ncc/