Lighttpd

After applying changeset 653305628989ded07c65e815b32cf0e50f95077f to fix bug #2765, lighttpd 1.4.43 fails to build on OS X El Capitan with:

mod_authn_file.c:683:56: error: too few arguments provided to function-like macro invocation
                    memcpy(sample, CONST_STR_LEN("$1$"));
                                                       ^
/usr/include/secure/_string.h:64:9: note: macro 'memcpy' defined here
#define memcpy(dest, src, len)                                  \
        ^
mod_authn_file.c:683:21: warning: expression result unused [-Wunused-value]
                    memcpy(sample, CONST_STR_LEN("$1$"));
                    ^~~~~~
1 warning and 1 error generated.

Full build log attached.