what feature fixed the gcc-5 preprocessor build error from a few months back?

["Robert P. J. Day" <rpjday@crashcourse.ca>]

  once upon a time, i asked a question about the origin of this OE
build error using gcc-5 to build ncurses-native:

> In file included from
/home/rpjday/oe/builds/oe/qemux86/tmp-glibc/work/x86_64-linux/ncurses-native/5.9-r15.1/ncurses-5.9/ncurses/curses.priv.h:283:0,
>                  from ../ncurses/lib_gen.c:19:
> _20141.c:835:15: error: expected ')' before 'int'
> ../include/curses.h:1594:56: note: in definition of macro
'mouse_trafo'
>  #define mouse_trafo(y,x,to_screen)
wmouse_trafo(stdscr,y,x,to_screen)

  it didn't take long to be pointed to an explanation on the fedora
mailing list:

http://lists.openembedded.org/pipermail/openembedded-core/2015-February/101820.html

"	these packages failed to build because of the changes in the preprocessor;
	gcc started to generate line directives to better detect whether a macro
	tokens come from a system header - see http://gcc.gnu.org/PR60723
	The fix is to use the -P option if the code isn't prepared to deal with
	such directives.

  so i just added to my local.conf:

CPPFLAGS_append_pn-ncurses-native = " -P"

  that issue was apparently fixed and i haven't needed to do that for
a while. however, i'm now using someone's custom version of OE-core
and that very error is back, so what was it that was tweaked to deal
with it? thanks.

rday

-- 

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Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
LinkedIn:                               http://ca.linkedin.com/in/rpjday
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