aarch64-w64-mingw32 hosts: fatal error: sys/wait.h: No such file or directory

make[1]: Entering directory '/home/sehihd/toolchains_build/toolchainbuildscripts/gcc/.artifacts/gcc/aarch64-w64-mingw32/aarch64-w64-mingw32/gcc/fixincludes'
aarch64-w64-mingw32-gcc -c -g -O2    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -Wmissing-format-attribute -Wno-overlength-strings -pedantic -Wno-long-long   -DHAVE_CONFIG_H -I. -I/home/sehihd/toolchains_build/gcc/fixincludes -I../include -I/home/sehihd/toolchains_build/gcc/fixincludes/../include /home/sehihd/toolchains_build/gcc/fixincludes/fixincl.c
/home/sehihd/toolchains_build/gcc/fixincludes/fixincl.c:29:10: fatal error: sys/wait.h: No such file or directory
   29 | #include <sys/wait.h>
      |          ^~~~~~~~~~~~
compilation terminated.
make[1]: *** [Makefile:76: fixincl.o] Error 1
make[1]: Leaving directory '/home/sehihd/toolchains_build/toolchainbuildscripts/gcc/.artifacts/gcc/aarch64-w64-mingw32/aarch64-w64-mingw32/gcc/fixincludes'
make: *** [Makefile:4107: all-fixincludes] Error 2
gcc: make all-gcc failed {build:x86_64-linux-gnu, host:aarch64-w64-mingw32, target:aarch64-w64-mingw32}