Error: shell command terminated with non-zero exit status 256: /usr/bin/clang readline-test.o -o readline-test -m64 -L/opt/local/lib -lreadline -lhistory -lcurses -L"/usr/local/Cellar/chicken/4.7.0/lib" -lchicken -lm
trying: -lreadline -lhistory -ltermcap
  /usr/local/Cellar/chicken/4.7.0/bin/csc -feature compiling-extension -setup-mode    readline-test.scm -lreadline -lhistory -ltermcap
clang: warning: argument unused during compilation: '-no-cpp-precomp'
readline-test.c:39:19: warning: implicit declaration of function 'rl_refresh_line' is invalid in C99
      [-Wimplicit-function-declaration]
C_r=C_fix((C_word)rl_refresh_line(t0,t1));
                  ^
/usr/local/Cellar/chicken/4.7.0/include/chicken/chicken.h:914:47: note: expanded from macro 'C_fix'
#define C_fix(n)                   (((C_word)(n) << C_FIXNUM_SHIFT) | C_FIXNUM_BIT)