ptarray.c concerning warnings on mingw64

[robe]

ptarray.c: In function 'ptarray_scroll_in_place':
ptarray.c:2196:2: error: implicit declaration of function 'bzero' [-Werror=implicit-function-declaration]
  bzero(getPoint_internal(tmp, 0), ptsize * pa->npoints);
  ^~~~~
ptarray.c:2196:2: error: incompatible implicit declaration of built-in function 'bzero' [-Werror]
cc1.exe: all warnings being treated as errors
make[1]: *** [Makefile:219: ptarray.lo] Error 1
make[1]: Leaving directory '/projects/postgis/postgis-git/liblwgeom'
make: *** [GNUmakefile:25: all] Error 1

I set my CFLAGS to same as gitlab to catch these notices it was complaining about in address standardizer.

CFLAGS=-Wall -fno-omit-frame-pointer -Werror

But now I get the above error. I'm assuming it's something particular about my setup since I think other bots are running with these settings and doing fine.