build failure on OSX 10.9

[c.]

Hi,

In trying to build the latest development sources today I noticed the
following failure which I had not seen before:

In file included from ../libgnu/stdio.h:43:0,
                 from ../libgnu/wchar.h:71,
                 from /opt/local/include/gcc47/c++/cwchar:46,
                 from /opt/local/include/gcc47/c++/bits/postypes.h:42,
                 from /opt/local/include/gcc47/c++/bits/char_traits.h:42,
                 from /opt/local/include/gcc47/c++/string:42,
                 from /opt/local/include/QtCore/qstring.h:54,
                 from /opt/local/include/QtCore/qobject.h:48,
                 from /opt/local/include/Qsci/qscilexeroctave.h:33,
                 from ../../octave/libgui/src/m-editor/file-editor-tab.cc:31:
/usr/include/stdio.h:255:7: error: previous declaration of 'char* gets(char*)' 
with 'C' linkage
In file included from ../libgnu/wchar.h:71:0,
                 from /opt/local/include/gcc47/c++/cwchar:46,
                 from /opt/local/include/gcc47/c++/bits/postypes.h:42,
                 from /opt/local/include/gcc47/c++/bits/char_traits.h:42,
                 from /opt/local/include/gcc47/c++/string:42,
                 from /opt/local/include/QtCore/qstring.h:54,
                 from /opt/local/include/QtCore/qobject.h:48,
                 from /opt/local/include/Qsci/qscilexeroctave.h:33,
                 from ../../octave/libgui/src/m-editor/file-editor-tab.cc:31:
../libgnu/stdio.h:1034:1: error: conflicts with new declaration with 'C++' 
linkage

Has anyone seen this before? any idea how to fix it?
Thanks,
c.