New comment by pullmoll on void-packages repository

https://github.com/void-linux/void-packages/pull/24258#issuecomment-674397437

Comment:
Compiling `cross-i686-pc-linux-gnu` with `gcc-10.2.0` fails with:
```
i686-pc-linux-gnu-gcc -nostdlib -nostartfiles -r -o /builddir/cross-i686-pc-linux-gnu-0.34/glibc-build/csu/gcrt1.o /builddir/cross-i686-pc-linux-gnu-0.34/glibc-build/csu/Scrt1.o /builddir/cross-i686-pc-linux-gnu-0.34/glibc-build/csu/gmon-start.os /builddir/cross-i686-pc-linux-gnu-0.34/glibc-build/csu/static-reloc.os
libc-tls.c: In function '__libc_setup_tls':
libc-tls.c:209:30: error: array subscript 1 is outside the bounds of an interior zero-length array 'struct dtv_slotinfo[0]' [-Werror=zero-length-bounds]
  209 |   static_slotinfo.si.slotinfo[1].map = main_map;
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
In file included from ../sysdeps/x86/ldsodefs.h:64,
                 from ../sysdeps/gnu/ldsodefs.h:46,
                 from ../sysdeps/unix/sysv/linux/ldsodefs.h:25,
                 from libc-tls.c:21:
../sysdeps/generic/ldsodefs.h:406:7: note: while referencing 'slotinfo'
  406 |     } slotinfo[0];
      |       ^~~~~~~~
cc1: all warnings being treated as errors
make[2]: *** [../o-iterator.mk:9: /builddir/cross-i686-pc-linux-gnu-0.34/glibc-build/csu/libc-tls.o] Error 1
make[2]: Leaving directory '/builddir/cross-i686-pc-linux-gnu-0.34/glibc-2.30/csu'
make[1]: *** [Makefile:259: csu/subdir_lib] Error 2
make[1]: Leaving directory '/builddir/cross-i686-pc-linux-gnu-0.34/glibc-2.30'
make: *** [Makefile:9: all] Error 2
=> ERROR: cross-i686-pc-linux-gnu-0.34_1: do_build: 'make ${makejobs}' exited with 2
=> ERROR:   in _glibc_build() at srcpkgs/cross-i686-pc-linux-gnu/template:212
=> ERROR:   in do_build() at srcpkgs/cross-i686-pc-linux-gnu/template:298
```