Re: [Qemu-devel] Concerning " [PULL 6/6] curses: Use cursesw instead of curses"

[Stefan Hajnoczi]

On Tue, Nov 08, 2016 at 10:40:20AM +0300, Sergey Smolov wrote:
> Dear List!
> 
> I've encountered the same problem as was discussed in this thread:
> https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg07898.html
> 
> Does anybody succeeded in solving the problem?
> 
> From my side, the problem appears when I run the 'configure' script with
> '--target-list=aarch64-softmmu' option. The script returns the following
> message to me:
> 
> ERROR: configure test passed without -Werror but failed with -Werror.
>        This is probably a bug in the configure script. The failing command
>        will be at the bottom of config.log.
>        You can run configure with --disable-werror to bypass this check.
> 
> I've attached a config.log to this e-mail.

[...]

> cc -Werror -fPIE -DPIE -m64 -mcx16 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 
> -D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef 
> -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -fno-common -fwrapv 
> -Wendif-labels -Wmissing-include-dirs -Wempty-body -Wnested-externs 
> -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers 
> -Wold-style-declaration -Wold-style-definition -Wtype-limits 
> -fstack-protector-all -I/usr/include/libpng14 -o config-temp/qemu-conf.exe 
> config-temp/qemu-conf.c -Wl,-z,relro -Wl,-z,now -pie -m64 -g -lncursesw
> config-temp/qemu-conf.c: In function ‘main’:
> config-temp/qemu-conf.c:9:3: error: implicit declaration of function 
> ‘addwstr’ [-Werror=implicit-function-declaration]
> config-temp/qemu-conf.c:9:3: error: nested extern declaration of ‘addwstr’ 
> [-Werror=nested-externs]
> config-temp/qemu-conf.c:10:3: error: implicit declaration of function 
> ‘addnwstr’ [-Werror=implicit-function-declaration]
> config-temp/qemu-conf.c:10:3: error: nested extern declaration of ‘addnwstr’ 
> [-Werror=nested-externs]
> cc1: all warnings being treated as errors

http://pdcurses.sourceforge.net/doc/PDCurses.txt:

  Wide-character functions from the X/Open standard -- these are only
  available when PDCurses is built with PDC_WIDE defined, and the
  prototypes are only available from curses.h when PDC_WIDE is defined
  before its inclusion in your app:

        addnwstr                addstr
        addwstr                 addstr

QEMU does not define PDC_WIDE.  Try adding ./configure
--extra-flags=-DPDC_WIDE.

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