[OE-core] what feature fixed the gcc-5 preprocessor build error from a few months back?
Andreas Oberritter
obi at opendreambox.org
Mon Dec 7 10:17:29 UTC 2015
Hello Robert,
On 07.12.2015 10:44, Robert P. J. Day wrote:
>
> 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.
see this commit in fido:
commit 3a5435b371c84ec28b6936b8c8fa6541a592d061
Author: Martin Stolpe <martinstolpe at gmail.com>
Date: Wed Jun 10 16:28:26 2015 +0200
ncurses: fix native builds when host has gcc5
GCC"s preprocessor starts to add newlines which are not
handled properly by ncurses build system startin from
version 5.0.
See also: https://bugzilla.yoctoproject.org/show_bug.cgi?id=7870
Signed-off-by: Martin Stolpe <martin.stolpe at gmail.com>
Signed-off-by: Joshua Lock <joshua.lock at collabora.co.uk>
In master it's probably been solved by updating ncurses.
Regards,
Andreas
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