www/w3m broken after update

[Kenta Suzumoto]

Maintainer has ignored emails. Any ideas what's causing this to fail?

config.status: creating config.h
config.status: executing po-directories commands
config.status: creating po/POTFILES
config.status: creating po/Makefile
===>  Building for w3m-0.5.3_2
(echo '#define DEFUN(x,y,z) x y'; sed -ne '/^DEFUN/{p;n;/^[     ]/p;}' ./main.c ./menu.c) | clang-cpp - |  awk '$1 ~ /^[_A-Za-z]/ {  for (i=2;i<=NF;i++) { print $i, $1}  }' > funcname.tab.tmp
funcname.tab updated
sort funcname.tab | /usr/bin/awk -f ./funcname1.awk > funcname1.h
clang  -I. -I. -O2 -pipe -Qunused-parameter -Qunused-arguments -fno-strict-aliasing -I./libwc  -I/usr/include/openssl -I/usr/local/include -I/usr/local/include -DHAVE_CONFIG_H -DAUXBIN_DIR=\"/usr/local/libexec/w3m\"  -DCGIBIN_DIR=\"/usr/local/libexec/w3m/cgi-bin\" -DHELP_DIR=\"/usr/local/share/w3m\"  -DETC_DIR=\"/usr/local/etc\" -DCONF_DIR=\"/usr/local/etc/w3m\"  -DRC_DIR=\"~/.w3m\"  -DLOCALEDIR=\"/usr/local/share/locale\" -c main.c
main.c:836:23: error: assigning to 'GC_warn_proc' (aka 'void (*)(char *, GC_word)') from incompatible type 'void'
    orig_GC_warn_proc = GC_set_warn_proc(wrap_GC_warn_proc);
                      ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
main.c:2264:37: warning: incompatible pointer types passing 'char **' to parameter of type 'wc_uchar **' (aka 'unsigned char **') [-Wincompatible-pointer-types]
    return wc_any_to_ucs(wtf_parse1(&p));
                                    ^~
./libwc/wtf.h:71:41: note: passing argument to parameter 'p' here
extern wc_wchar_t wtf_parse1(wc_uchar **p);
                                        ^
1 warning and 1 error generated.
*** [main.o] Error code 1