Does not build on FreeBSD

[Alain De Vos]

Error given,
gmake

gmake
==== Building wren_cli (release_64bit) ====
Creating obj/64bit/Release
async.c
core.c
dl.c
fs-poll.c
fs.c
getaddrinfo.c
getnameinfo.c
idna.c
inet.c
io.c
linux-core.c
../../deps/libuv/src/unix/linux-core.c:38:10: fatal error: 'sys/epoll.h' file not found
#include <sys/epoll.h>
         ^~~~~~~~~~~~~
1 error generated.
gmake[1]: *** [wren_cli.make:259: obj/64bit/Release/linux-core.o] Error 1
gmake: *** [Makefile:42: wren_cli] Error 2
HOST:x: /home/x/wren-cli/projects/make >

[.ruby]

make sure you use the make files in the bsd specific folder (in case you haven't).

https://github.com/wren-lang/wren-cli/tree/main/projects/make.bsd