message: Modify default makefile to include and link google benchmark properly.
diff: @@ -482,8 +482,8 @@ ALGOIM_LIB = $(BLITZ_LIB)
  # BENCHMARK library configuration
  BENCHMARK_DIR = @MFEM_DIR@/../google-benchmark
  -BENCHMARK_OPT = -I$(BENCHMARK_DIR)/include
  -BENCHMARK_LIB = -L$(BENCHMARK_DIR)/lib -lbenchmark -lpthread
  +BENCHMARK_OPT = -I$(BENCHMARK_DIR)/include -I$(BENCHMARK_DIR)/build/include
  +BENCHMARK_LIB = -L$(BENCHMARK_DIR)/build/src -lbenchmark -lbenchmark_main -lpthread
  # libCEED library configuration
  CEED_DIR ?= @MFEM_DIR@/../libCEED
  