Cross-compiling chicken crunch from linux to windows

[Srayan Jana via Chicken-users]

Hello again!
I'm curious, how would you recommend cross compiling something from linux to 
windows when using Chicken or Crunch? Usually I'd be using something like 
CMake, but that's obviously not an option here.
Trying to use Mingw gives me this error:
sraya@Penelope:~/chicken-scripts$ x86_64-w64-mingw32-gcc a.c $(chicken-crunch 
-cflags) $(chicken-crunch -libs) -lraylib
-ldl -lGL -lX11
In file included from a.c:17:
/usr/local/include/chicken/crunch.h: In function ‘crunch_open_input_string’:
/usr/local/include/chicken/crunch.h:1391:25: warning: implicit declaration of 
function ‘fmemopen’; did you mean ‘freope’? [-Wimplicit-function-declaration]
 1391 |         p->data->file = fmemopen(s->data, s->size, "r");
      |                         ^~~~~~~~
      |                         freopen
/usr/local/include/chicken/crunch.h:1391:23: warning: assignment to ‘FILE *’ 
{aka ‘struct _iobuf *’} from ‘int’ makes pointer from integer without a cast 
[-Wint-conversion]
 1391 |         p->data->file = fmemopen(s->data, s->size, "r");
      |                       ^
/usr/local/include/chicken/crunch.h: In function ‘crunch_open_input_bytevector’:
/usr/local/include/chicken/crunch.h:1403:23: warning: assignment to ‘FILE *’ 
{aka ‘struct _iobuf *’} from ‘int’ makes pointer from integer without a cast 
[-Wint-conversion]
 1403 |         p->data->file = fmemopen(s->data, s->size, "rb");
      |                       ^
/usr/local/include/chicken/crunch.h: In function ‘crunch_open_output_string’:
/usr/local/include/chicken/crunch.h:1417:23: warning: assignment to ‘FILE *’ 
{aka ‘struct _iobuf *’} from ‘int’ makes pointer from integer without a cast 
[-Wint-conversion]
 1417 |         p->data->file = fmemopen(buf->data, CRUNCH_BUFFER_SIZE, "w");
      |                       ^
/usr/local/include/chicken/crunch.h: In function 
‘crunch_open_output_bytevector’:
/usr/local/include/chicken/crunch.h:1430:23: warning: assignment to ‘FILE *’ 
{aka ‘struct _iobuf *’} from ‘int’ makes pointer from integer without a cast 
[-Wint-conversion]
 1430 |         p->data->file = fmemopen(buf->data, CRUNCH_BUFFER_SIZE, "wb");
      |                       ^
a.c: At top level:
a.c:20:10: fatal error: raylib.h: No such file or directory
   20 | #include "raylib.h"
      |          ^~~~~~~~~~
compilation terminated.
sraya@Penelope:~/chicken-scripts$