How to use CREST with muti-files program?How to build the executable program?

[SOSCapture]

/home/yzb/Downloads/crest-master/benchmarks/grep-2.2/src/grep.c:112: undefined reference to __CrestChar' /home/yzb/Downloads/crest-master/benchmarks/grep-2.2/src/grep.c:112: undefined reference to __CrestChar'
grep_comb.o: In function main': /home/yzb/Downloads/crest-master/benchmarks/grep-2.2/src/grep.c:957: undefined reference to __CrestChar'
collect2: error: ld returned 1 exit status
make: *** [grep] Error 1
Could anyone tell me how to fix this problem?I can get the grep_comb.c，but failed to make the executable grep.
@jburnim

[ayush268]

Facing the same problem, did you find any solution @SOSCapture ? \cc @jburnim