docheck.c:2:22: readline.h: No such file or directory
docheck.c: In function `main':
docheck.c:4: error: `rl_library_version' undeclared (first use in this function)
docheck.c:4: error: (Each undeclared identifier is reported only once
docheck.c:4: error: for each function it appears in.)
docheck.c: In function `main':
docheck.c:9: error: `completion_matches' undeclared (first use in this function)
docheck.c:9: error: (Each undeclared identifier is reported only once
docheck.c:9: error: for each function it appears in.)
ld: Undefined symbols:
_rl_completion_matches