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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Emacs master build failing on RHEL 6.8
Date: Tue, 07 May 2019 17:34:33 +0300
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Cc: eggert@cs.ucla.edu, emacs-devel@gnu.org
To: Kaushal Modi <kaushal.modi@gmail.com>
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	(message from Kaushal Modi on Tue, 7 May 2019 08:00:16 -0400)
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> From: Kaushal Modi <kaushal.modi@gmail.com>
> Date: Tue, 7 May 2019 08:00:16 -0400
> Cc: Paul Eggert <eggert@cs.ucla.edu>
> 
> I am on gcc 7.2.0 on RHEL 6.8, and the emacs build is failing with this
> error:
> 
> /home/kmodi/stowed/include/m17n-core.h:440:1: warning: function declaration
> isn’t a prototype [-Wstrict-prototypes]
>  extern MText *mtext ();
>  ^~~~~~
>   CC       ftxfont.o
>   CC       fontset.o
>   CC       fringe.o
>   CC       image.o
> image.c: In function ‘svg_load_image’:
> image.c:9468:29: error: missing binary operator before token "("
>    #if LIBRSVG_CHECK_VERSION (2, 45, 1) && GNUC_PREREQ (4, 2, 0)
>                              ^
> make[1]: *** [Makefile:394: image.o] Error 1

What version of librsvg do you have there, and what does the
LIBRSVG_CHECK_VERSION macro look like in its headers?