Re: pkg/49752: ./bootstrap --unpriveleged fails on Alpine Linux

[michael lowell roberts <epergne%hotmail.com@localhost>]

On Wed, Mar 18, 2015, at 12:25 PM, David Holland wrote:
> The following reply was made to PR pkg/49752; it has been noted by GNATS.
> 
> From: David Holland <dholland-pbugs%netbsd.org@localhost>
> To: gnats-bugs%NetBSD.org@localhost
> Cc: 
> Subject: Re: pkg/49752: ./bootstrap --unpriveleged fails on Alpine Linux
> Date: Wed, 18 Mar 2015 19:20:39 +0000
> 
>  On Tue, Mar 17, 2015 at 01:40:00AM +0000, epergne%hotmail.com@localhost wrote:
>   > /usr/include/sys/cdefs.h:1:2: error: #warning usage of non-standard #include <sys/cdefs.h> is deprecated [-Werror=cpp]
>   >  #warning usage of non-standard #include <sys/cdefs.h> is deprecated
>  
>  huzzah for glibc...
>  
>  There are two issues here (besides routine glibc stupidity):
>    (1) the configure script isn't correctly detecting that the system
>        <sys/cdefs.h> is no good;
>    (2) the gcc command line contains -Wno-error -Wno-error -Werror
>  
>  If the configure script doesn't use -Werror it won't fail on that
>  warning, hence #1; the question I guess is where that -Werror in the
>  gcc command line is coming from.

Thanks for getting back to me. I did some digging around to find out
where the -Werror might be coming from.

Prefixing the bootstrap command with `NOGCCERROR=1` solves the problem.
i.e.:

NOGCCERROR=1 ./bootstrap --unprivileged

I got the idea after seeing the following in a grep result:

share/mk/bsd.sys.mk:25:CFLAGS+= -Werror

Which appeared to be the only place where that flag is specified.

After seeing the bug report at <https://gnats.netbsd.org/46292>,
however, I have concerns that my workaround could break something else.
If so, is there a way to address the core issue?

~mlr