EXTRA_PATCHES+=	${PATCHDIR}/extra-patch-configure

--- configure.orig	2015-08-12 21:40:16 UTC

+++ configure

@@ -18563,75 +18563,6 @@ fi

 LIBS=$dl_saved_libs

-ac_fn_c_check_header_mongrel "$LINENO" "argp.h" "ac_cv_header_argp_h" "$ac_includes_default"

-if test "x$ac_cv_header_argp_h" = xyes; then :

-

-else

-  as_fn_error $? "Cannot continue: argp.h not found" "$LINENO" 5

-fi

-

-

-argp_saved_libs=$LIBS

-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing argp_parse" >&5

-$as_echo_n "checking for library containing argp_parse... " >&6; }

-if ${ac_cv_search_argp_parse+:} false; then :

-  $as_echo_n "(cached) " >&6

-else

-  ac_func_search_save_LIBS=$LIBS

-cat confdefs.h - <<_ACEOF >conftest.$ac_ext

-/* end confdefs.h.  */

-

-/* Override any GCC internal prototype to avoid an error.

-   Use char because int might match the return type of a GCC

-   builtin and then its argument prototype would still apply.  */

-#ifdef __cplusplus

-extern "C"

-#endif

-char argp_parse ();

-int

-main ()

-{

-return argp_parse ();

-  ;

-  return 0;

-}

-_ACEOF

-for ac_lib in '' argp; do

-  if test -z "$ac_lib"; then

-    ac_res="none required"

-  else

-    ac_res=-l$ac_lib

-    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"

-  fi

-  if ac_fn_c_try_link "$LINENO"; then :

-  ac_cv_search_argp_parse=$ac_res

-fi

-rm -f core conftest.err conftest.$ac_objext \

-    conftest$ac_exeext

-  if ${ac_cv_search_argp_parse+:} false; then :

-  break

-fi

-done

-if ${ac_cv_search_argp_parse+:} false; then :

-

-else

-  ac_cv_search_argp_parse=no

-fi

-rm conftest.$ac_ext

-LIBS=$ac_func_search_save_LIBS

-fi

-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_argp_parse" >&5

-$as_echo "$ac_cv_search_argp_parse" >&6; }

-ac_res=$ac_cv_search_argp_parse

-if test "$ac_res" != no; then :

-  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"

-  test "$ac_cv_search_argp_parse" = "none required" || ARGP_LIBS=$ac_cv_search_argp_parse

-else

-  as_fn_error $? "unable to find the argp_parse() function" "$LINENO" 5

-fi

-

-

-LIBS=$argp_saved_libs

 ac_fn_c_check_header_mongrel "$LINENO" "linux/i2c-dev.h" "ac_cv_header_linux_i2c_dev_h" "$ac_includes_default"

 if test "x$ac_cv_header_linux_i2c_dev_h" = xyes; then :