undo@metasmoke:~/zhregex$ make
clang -o module.so module.c -g -fPIC -shared -std=gnu99 -I. -Wall -Wextra -Wno-unused-parameter -lc -lpcre
make: clang: Command not found
Makefile:18: recipe for target 'module.so' failed
make: *** [module.so] Error 127
undo@metasmoke:~/zhregex$