Compile error in XFCE 4.10

gistfile1.txt

Build Configuration:

* Debug Support:  full
* GNU Visibility: yes

Now type "make" to compile.
(CDPATH="${ZSH_VERSION+.}:" && cd . && /bin/bash /home/jpreiss/work/xfce/libxfce4util/missing autoheader)
configure.ac:140: warning: AC_LANG_CONFTEST: no AC_LANG_SOURCE call detected in body
../../lib/autoconf/lang.m4:193: AC_LANG_CONFTEST is expanded from...
../../lib/autoconf/general.m4:2729: _AC_RUN_IFELSE is expanded from...
../../lib/m4sugar/m4sh.m4:639: AS_IF is expanded from...
../../lib/autoconf/general.m4:2748: AC_RUN_IFELSE is expanded from...
configure.ac:140: the top level
configure.ac:163: warning: AC_LANG_CONFTEST: no AC_LANG_SOURCE call detected in body
../../lib/autoconf/lang.m4:193: AC_LANG_CONFTEST is expanded from...
../../lib/autoconf/general.m4:2590: _AC_COMPILE_IFELSE is expanded from...
../../lib/autoconf/general.m4:2606: AC_COMPILE_IFELSE is expanded from...
aclocal.m4:11015: XDT_SUPPORTED_FLAGS is expanded from...
aclocal.m4:11035: XDT_FEATURE_DEBUG is expanded from...
configure.ac:163: the top level
configure.ac:184: warning: AC_LANG_CONFTEST: no AC_LANG_SOURCE call detected in body
../../lib/autoconf/lang.m4:193: AC_LANG_CONFTEST is expanded from...
../../lib/autoconf/general.m4:2590: _AC_COMPILE_IFELSE is expanded from...
../../lib/autoconf/general.m4:2606: AC_COMPILE_IFELSE is expanded from...
configure.ac:184: the top level
configure.ac:211: warning: AC_LANG_CONFTEST: no AC_LANG_SOURCE call detected in body
../../lib/autoconf/lang.m4:193: AC_LANG_CONFTEST is expanded from...
../../lib/autoconf/general.m4:2590: _AC_COMPILE_IFELSE is expanded from...
../../lib/autoconf/general.m4:2606: AC_COMPILE_IFELSE is expanded from...
aclocal.m4:11015: XDT_SUPPORTED_FLAGS is expanded from...
configure.ac:211: the top level
rm -f stamp-h1
touch config.h.in
cd . && /bin/bash ./config.status config.h
config.status: creating config.h
config.status: config.h is unchanged
make  all-recursive
make[1]: Entering directory `/home/jpreiss/work/xfce/libxfce4util'
Making all in libxfce4util
make[2]: Entering directory `/home/jpreiss/work/xfce/libxfce4util/libxfce4util'
make  all-am
make[3]: Entering directory `/home/jpreiss/work/xfce/libxfce4util/libxfce4util'
  CC       libxfce4util_la-libxfce4util-config.lo
  CC       libxfce4util_la-libxfce4util-private.lo
  CC       libxfce4util_la-xfce-fileutils.lo
  CC       libxfce4util_la-xfce-i18n.lo
  CC       libxfce4util_la-xfce-kiosk.lo
  CC       libxfce4util_la-xfce-license.lo
  CC       libxfce4util_la-xfce-miscutils.lo
xfce-miscutils.c: In function 'internal_get_file_r':
xfce-miscutils.c:137:3: error: function might be possible candidate for 'gnu_printf' format attribute [-Werror=suggest-attribute=format]
   if ((gsize) g_vsnprintf(buffer + n, len - n, format, ap) >= len - n)
   ^
cc1: all warnings being treated as errors
make[3]: *** [libxfce4util_la-xfce-miscutils.lo] Error 1
make[3]: Leaving directory `/home/jpreiss/work/xfce/libxfce4util/libxfce4util'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/home/jpreiss/work/xfce/libxfce4util/libxfce4util'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/jpreiss/work/xfce/libxfce4util'
make: *** [all] Error 2