Warning: skipping dependency checks.
src/autoinstall.c:297:21: warning: second argument to 'va_arg' is of promotable type 'mode_t' (aka 'unsigned short'); this va_arg has undefined behavior because arguments will be promoted to 'int' [-Wvarargs]
  mode = va_arg(ap, mode_t);
                    ^~~~~~
/Library/Developer/CommandLineTools/usr/bin/../lib/clang/7.0.0/include/stdarg.h:35:50: note: expanded from macro 'va_arg'
#define va_arg(ap, type)    __builtin_va_arg(ap, type)
                                                 ^
src/autoinstall.c:341:21: warning: second argument to 'va_arg' is of promotable type 'mode_t' (aka 'unsigned short'); this va_arg has undefined behavior because arguments will be promoted to 'int' [-Wvarargs]
  mode = va_arg(ap, mode_t);
                    ^~~~~~
/Library/Developer/CommandLineTools/usr/bin/../lib/clang/7.0.0/include/stdarg.h:35:50: note: expanded from macro 'va_arg'
#define va_arg(ap, type)    __builtin_va_arg(ap, type)
                                                 ^
src/autoinstall.c:385:21: warning: second argument to 'va_arg' is of promotable type 'mode_t' (aka 'unsigned short'); this va_arg has undefined behavior because arguments will be promoted to 'int' [-Wvarargs]
  mode = va_arg(ap, mode_t);
                    ^~~~~~
/Library/Developer/CommandLineTools/usr/bin/../lib/clang/7.0.0/include/stdarg.h:35:50: note: expanded from macro 'va_arg'
#define va_arg(ap, type)    __builtin_va_arg(ap, type)
                                                 ^
src/autoinstall.c:429:21: warning: second argument to 'va_arg' is of promotable type 'mode_t' (aka 'unsigned short'); this va_arg has undefined behavior because arguments will be promoted to 'int' [-Wvarargs]
  mode = va_arg(ap, mode_t);
                    ^~~~~~
/Library/Developer/CommandLineTools/usr/bin/../lib/clang/7.0.0/include/stdarg.h:35:50: note: expanded from macro 'va_arg'
#define va_arg(ap, type)    __builtin_va_arg(ap, type)
                                                 ^
4 warnings generated.
ld: library not found for -llua5.1
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Error: Build error: Failed compiling module autoinstall.so