title: How to add "-fstack-protector-all" to makefile?
body: <p>There is a error in my code:
      <code>*** stack smashing detected ***: ./mummergpu terminated</code>
  I search it in stackoverflow, a solution is add <code>-fno-stack-protector</code> to environment variable， but i don't know how to add it ? can anyone help me ?
  nakefile follow:</p>
  
  <pre><code>all: clean mummergpu
  .SUFFIXES : .cu .cu_dbg_o .c_dbg_o .cpp_dbg_o .cu_rel_o .c_rel_o .cpp_rel_o .cubin
  ## Reenable this for testing all variations
  #include ../experiments/test_rule.mk
  CUDA_INSTALL_PATH := /usr/local/cuda-8.0
  # Compilers
  NVCC       := $(CUDA_INSTALL_PATH)/bin/nvcc 
  CXX        := g++ $(PROFILE)
  CC         := gcc 
  LINK       := g++ $(PROFILE)
  
  # Add source files here
  STATIC_LIB := libmummergpu.a
  # Cuda source files (compiled with cudacc)
  CUFILES     := mummergpu.cu
  # C/C++ source files (compiled with gcc / c++)
  CCFILES     := \
   mummergpu_gold.cpp suffix-tree.cpp PoolMalloc.cpp
  </code></pre>