Hello,

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

Related commit:
https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=da3897abf1e45741b122b52df37a5cbc68b2ad5d


--
Kaushal Modi