On Sun, Jul 12, 2020 at 2:36 PM Paul Eggert <eggert@cs.ucla.edu> wrote:

> On 7/12/20 10:48 AM, Kaushal Modi wrote:
>
> > emacsgtkfixed.c: In function ‘emacs_fixed_get_type’:
> > emacsgtkfixed.c:51:1: error: size of array
> > ‘_GStaticAssertCompileTimeAssertion_3’ is negative
> >     51 | G_DEFINE_TYPE (EmacsFixed, emacs_fixed, GTK_TYPE_FIXED)
> >        | ^~~~~~~~~~~~~
>
> I'm not seeing the problem on Fedora 31.
>
> My guess is that your pkg-config setup doesn't match your libraries. This
> sort
> of thing can be a pain to debug. Possibly you can work around the problem
> by
> setting PKG_CONFIG_LIBDIR in your environment.
>

Hello Paul,

Sorry for the late reply. I was waiting to find some time so that I could
do a deep-dive into this issue.

I spent few hours on this today, but couldn't get emacs to build on CentOS
7. I tried with the default pkg-config 0.27.1. That failed with the same
error.

Then I installed pkg-config 0.28.0 (which worked well for me on RHEL 6.8),
but the same error using that.

And then the same thing with pkg-config 0.29.2 as well.

I also tried out your suggestion to set the env var PKG_CONFIG_LIBDIR. I
set it with the same value of my default PKG_CONFIG_DIR that contains the
paths of all the necessary pkgconfig dirs (I hope that is the right value
to set for PKG_CONFIG_LIBDIR). But still couldn't get past this error.

What does that G_DEFINE_TYPE check do in emacsgtkfixed.c? Is there some
local hack I can do to that .c file so that I can get past this error?

Thanks.