bug#30120: 26.0.90; Building with X toolkit without toolkit scroll bars broken on release branch and master

[Glenn Morris]

martin rudalics wrote:

> CFLAGS='-O0 -g3' ../configure --with-gnutls=no --without-pop
> --enable-gcc-warnings=warn-only --with-x-toolkit=lucid
> --without-toolkit-scroll-bars --enable-checking=yes
> --enable-check-lisp-object-type=yes
> make -j2 WERROR_CFLAGS=
>
>
> In file included from ./string.h:49:0,
>                  from ../../lib/explicit_bzero.c:28:
> ./stddef.h:93:3: error: conflicting types for 'max_align_t'
> In file included from ./stddef.h:55:0,
>                  from ./string.h:49,
>                  from ../../lib/explicit_bzero.c:28:
> /usr/lib/gcc/x86_64-linux-gnu/4.7/include/stddef.h:426:3: note:
> previous declaration of 'max_align_t' was here
> make[1]: *** [explicit_bzero.o] Fehler 1

Continues to work fine for me on rhel7.
You reported the same thing previously in
https://debbugs.gnu.org/27816#113
and implied that it went away if you did a clean build.